./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/mult-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/mult-dist.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN --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 c22a326532494b0b5126a81d8882f3e958ed0a5a46e6da0f77df1a4da18ba846 --- 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-6b4ec56 [2022-11-20 11:37:38,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:37:38,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:37:38,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:37:38,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:37:38,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:37:38,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:37:38,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:37:38,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:37:38,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:37:38,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:37:38,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:37:38,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:37:38,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:37:38,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:37:38,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:37:38,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:37:38,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:37:38,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:37:38,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:37:38,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:37:38,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:37:38,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:37:38,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:37:38,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:37:38,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:37:38,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:37:38,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:37:38,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:37:38,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:37:38,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:37:38,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:37:38,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:37:38,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:37:38,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:37:38,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:37:38,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:37:38,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:37:38,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:37:38,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:37:38,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:37:38,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:37:38,464 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:37:38,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:37:38,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:37:38,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:37:38,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:37:38,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:37:38,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:37:38,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:37:38,469 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:37:38,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:37:38,470 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:37:38,470 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:37:38,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:37:38,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:37:38,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:37:38,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:37:38,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:37:38,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:37:38,473 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:37:38,473 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:37:38,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:37:38,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:37:38,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:37:38,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:37:38,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:37:38,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:37:38,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:37:38,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:37:38,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:37:38,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:37:38,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:37:38,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:37:38,478 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:37:38,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:37:38,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:37:38,479 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_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22a326532494b0b5126a81d8882f3e958ed0a5a46e6da0f77df1a4da18ba846 [2022-11-20 11:37:38,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:37:38,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:37:38,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:37:38,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:37:38,983 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:37:38,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/mult-dist.wvr.c [2022-11-20 11:37:43,103 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:37:43,469 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:37:43,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/sv-benchmarks/c/weaver/mult-dist.wvr.c [2022-11-20 11:37:43,481 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/data/68a44005f/cbfcfe66be164a13a5f9ca35b8dbed62/FLAG07cd34e73 [2022-11-20 11:37:43,508 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/data/68a44005f/cbfcfe66be164a13a5f9ca35b8dbed62 [2022-11-20 11:37:43,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:37:43,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:37:43,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:37:43,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:37:43,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:37:43,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:43,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1095ab03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43, skipping insertion in model container [2022-11-20 11:37:43,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:43,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:37:43,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:37:43,898 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_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/sv-benchmarks/c/weaver/mult-dist.wvr.c[2116,2129] [2022-11-20 11:37:43,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:37:43,915 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:37:43,952 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_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/sv-benchmarks/c/weaver/mult-dist.wvr.c[2116,2129] [2022-11-20 11:37:43,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:37:43,972 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:37:43,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43 WrapperNode [2022-11-20 11:37:43,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:37:43,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:37:43,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:37:43,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:37:43,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:43,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,030 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2022-11-20 11:37:44,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:37:44,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:37:44,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:37:44,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:37:44,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:37:44,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:37:44,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:37:44,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:37:44,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (1/1) ... [2022-11-20 11:37:44,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:37:44,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:37:44,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:37:44,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:37:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:37:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:37:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:37:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:37:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:37:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:37:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:37:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:37:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:37:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:37:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:37:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:37:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:37:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:37:44,184 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:37:44,328 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:37:44,332 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:37:45,049 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:37:45,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:37:45,070 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:37:45,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:45 BoogieIcfgContainer [2022-11-20 11:37:45,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:37:45,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:37:45,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:37:45,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:37:45,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:37:43" (1/3) ... [2022-11-20 11:37:45,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702bf548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:45, skipping insertion in model container [2022-11-20 11:37:45,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:43" (2/3) ... [2022-11-20 11:37:45,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702bf548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:45, skipping insertion in model container [2022-11-20 11:37:45,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:45" (3/3) ... [2022-11-20 11:37:45,096 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2022-11-20 11:37:45,110 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:37:45,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:37:45,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-20 11:37:45,128 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:37:45,273 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:37:45,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 193 transitions, 410 flow [2022-11-20 11:37:45,505 INFO L130 PetriNetUnfolder]: 7/190 cut-off events. [2022-11-20 11:37:45,505 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:37:45,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 190 events. 7/190 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 265 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2022-11-20 11:37:45,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 193 transitions, 410 flow [2022-11-20 11:37:45,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 170 transitions, 358 flow [2022-11-20 11:37:45,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:37:45,556 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;@722513a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:37:45,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-20 11:37:45,576 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 11:37:45,577 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:37:45,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:45,578 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] [2022-11-20 11:37:45,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:45,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:45,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1133528999, now seen corresponding path program 1 times [2022-11-20 11:37:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:45,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836041978] [2022-11-20 11:37:45,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:45,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:45,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:45,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836041978] [2022-11-20 11:37:45,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836041978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:45,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:45,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:45,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084964034] [2022-11-20 11:37:45,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:45,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:45,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:45,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:46,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-11-20 11:37:46,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:46,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-11-20 11:37:46,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:46,489 INFO L130 PetriNetUnfolder]: 34/401 cut-off events. [2022-11-20 11:37:46,490 INFO L131 PetriNetUnfolder]: For 48/78 co-relation queries the response was YES. [2022-11-20 11:37:46,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 401 events. 34/401 cut-off events. For 48/78 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1690 event pairs, 21 based on Foata normal form. 24/340 useless extension candidates. Maximal degree in co-relation 338. Up to 68 conditions per place. [2022-11-20 11:37:46,508 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-20 11:37:46,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 166 transitions, 384 flow [2022-11-20 11:37:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:46,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2022-11-20 11:37:46,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.917098445595855 [2022-11-20 11:37:46,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 531 transitions. [2022-11-20 11:37:46,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 531 transitions. [2022-11-20 11:37:46,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:46,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 531 transitions. [2022-11-20 11:37:46,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,585 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 358 flow. Second operand 3 states and 531 transitions. [2022-11-20 11:37:46,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 166 transitions, 384 flow [2022-11-20 11:37:46,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:37:46,607 INFO L231 Difference]: Finished difference. Result has 169 places, 166 transitions, 342 flow [2022-11-20 11:37:46,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=169, PETRI_TRANSITIONS=166} [2022-11-20 11:37:46,619 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -5 predicate places. [2022-11-20 11:37:46,620 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 166 transitions, 342 flow [2022-11-20 11:37:46,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:46,622 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] [2022-11-20 11:37:46,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:37:46,624 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:46,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1557356319, now seen corresponding path program 1 times [2022-11-20 11:37:46,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:46,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109086623] [2022-11-20 11:37:46,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:46,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:46,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:46,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109086623] [2022-11-20 11:37:46,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109086623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:46,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:46,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:46,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692175668] [2022-11-20 11:37:46,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:46,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:46,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:46,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:46,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:46,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-11-20 11:37:46,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:46,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-11-20 11:37:46,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:46,928 INFO L130 PetriNetUnfolder]: 58/483 cut-off events. [2022-11-20 11:37:46,928 INFO L131 PetriNetUnfolder]: For 21/31 co-relation queries the response was YES. [2022-11-20 11:37:46,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 483 events. 58/483 cut-off events. For 21/31 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2347 event pairs, 39 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 563. Up to 101 conditions per place. [2022-11-20 11:37:46,937 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-11-20 11:37:46,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 165 transitions, 374 flow [2022-11-20 11:37:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:46,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-20 11:37:46,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-11-20 11:37:46,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-20 11:37:46,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-20 11:37:46,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:46,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-20 11:37:46,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,949 INFO L175 Difference]: Start difference. First operand has 169 places, 166 transitions, 342 flow. Second operand 3 states and 528 transitions. [2022-11-20 11:37:46,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 165 transitions, 374 flow [2022-11-20 11:37:46,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:46,956 INFO L231 Difference]: Finished difference. Result has 168 places, 165 transitions, 340 flow [2022-11-20 11:37:46,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=168, PETRI_TRANSITIONS=165} [2022-11-20 11:37:46,958 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2022-11-20 11:37:46,958 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 165 transitions, 340 flow [2022-11-20 11:37:46,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:46,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:46,960 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] [2022-11-20 11:37:46,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:37:46,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1214048674, now seen corresponding path program 1 times [2022-11-20 11:37:46,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:46,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568138028] [2022-11-20 11:37:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:46,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:47,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:47,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568138028] [2022-11-20 11:37:47,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568138028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:47,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:47,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:47,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761677664] [2022-11-20 11:37:47,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:47,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:47,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:47,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:47,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:47,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 193 [2022-11-20 11:37:47,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 165 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:47,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 193 [2022-11-20 11:37:47,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:47,446 INFO L130 PetriNetUnfolder]: 222/1275 cut-off events. [2022-11-20 11:37:47,446 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-20 11:37:47,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1624 conditions, 1275 events. 222/1275 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9340 event pairs, 135 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1585. Up to 322 conditions per place. [2022-11-20 11:37:47,470 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 11:37:47,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 378 flow [2022-11-20 11:37:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-20 11:37:47,477 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-11-20 11:37:47,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-20 11:37:47,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-20 11:37:47,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:47,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-20 11:37:47,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,484 INFO L175 Difference]: Start difference. First operand has 168 places, 165 transitions, 340 flow. Second operand 3 states and 522 transitions. [2022-11-20 11:37:47,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 378 flow [2022-11-20 11:37:47,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:47,494 INFO L231 Difference]: Finished difference. Result has 167 places, 164 transitions, 338 flow [2022-11-20 11:37:47,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=167, PETRI_TRANSITIONS=164} [2022-11-20 11:37:47,502 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -7 predicate places. [2022-11-20 11:37:47,502 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 164 transitions, 338 flow [2022-11-20 11:37:47,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:47,504 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] [2022-11-20 11:37:47,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:37:47,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash 240180713, now seen corresponding path program 1 times [2022-11-20 11:37:47,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:47,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232371502] [2022-11-20 11:37:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:47,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:47,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:47,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232371502] [2022-11-20 11:37:47,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232371502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:47,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:47,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:47,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189038930] [2022-11-20 11:37:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:47,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:47,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:47,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:47,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:47,623 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-20 11:37:47,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 164 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:47,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-20 11:37:47,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:47,724 INFO L130 PetriNetUnfolder]: 23/322 cut-off events. [2022-11-20 11:37:47,725 INFO L131 PetriNetUnfolder]: For 7/13 co-relation queries the response was YES. [2022-11-20 11:37:47,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 322 events. 23/322 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1133 event pairs, 6 based on Foata normal form. 1/268 useless extension candidates. Maximal degree in co-relation 334. Up to 41 conditions per place. [2022-11-20 11:37:47,731 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-20 11:37:47,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 166 transitions, 376 flow [2022-11-20 11:37:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:47,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 537 transitions. [2022-11-20 11:37:47,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927461139896373 [2022-11-20 11:37:47,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 537 transitions. [2022-11-20 11:37:47,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 537 transitions. [2022-11-20 11:37:47,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:47,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 537 transitions. [2022-11-20 11:37:47,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,741 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,742 INFO L175 Difference]: Start difference. First operand has 167 places, 164 transitions, 338 flow. Second operand 3 states and 537 transitions. [2022-11-20 11:37:47,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 166 transitions, 376 flow [2022-11-20 11:37:47,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:47,747 INFO L231 Difference]: Finished difference. Result has 166 places, 164 transitions, 344 flow [2022-11-20 11:37:47,748 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=166, PETRI_TRANSITIONS=164} [2022-11-20 11:37:47,749 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -8 predicate places. [2022-11-20 11:37:47,749 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 164 transitions, 344 flow [2022-11-20 11:37:47,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:47,751 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] [2022-11-20 11:37:47,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:37:47,752 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash -191447237, now seen corresponding path program 1 times [2022-11-20 11:37:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:47,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189890027] [2022-11-20 11:37:47,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:47,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:47,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:47,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189890027] [2022-11-20 11:37:47,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189890027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:47,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:47,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:47,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351046125] [2022-11-20 11:37:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:47,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:47,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:47,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:47,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-20 11:37:47,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 164 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:47,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-20 11:37:47,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:47,949 INFO L130 PetriNetUnfolder]: 21/277 cut-off events. [2022-11-20 11:37:47,949 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:37:47,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 277 events. 21/277 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1020 event pairs, 4 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 261. Up to 23 conditions per place. [2022-11-20 11:37:47,955 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2022-11-20 11:37:47,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 164 transitions, 376 flow [2022-11-20 11:37:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2022-11-20 11:37:47,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92573402417962 [2022-11-20 11:37:47,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2022-11-20 11:37:47,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2022-11-20 11:37:47,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:47,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2022-11-20 11:37:47,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,968 INFO L175 Difference]: Start difference. First operand has 166 places, 164 transitions, 344 flow. Second operand 3 states and 536 transitions. [2022-11-20 11:37:47,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 164 transitions, 376 flow [2022-11-20 11:37:47,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:37:47,974 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 346 flow [2022-11-20 11:37:47,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2022-11-20 11:37:47,976 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -8 predicate places. [2022-11-20 11:37:47,977 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 346 flow [2022-11-20 11:37:47,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:47,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:47,978 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] [2022-11-20 11:37:47,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:37:47,979 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash 702813533, now seen corresponding path program 1 times [2022-11-20 11:37:47,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:47,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945550553] [2022-11-20 11:37:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:48,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:48,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:48,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945550553] [2022-11-20 11:37:48,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945550553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:48,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:48,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:48,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635199511] [2022-11-20 11:37:48,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:48,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:48,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:48,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-11-20 11:37:48,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:48,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-11-20 11:37:48,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:48,306 INFO L130 PetriNetUnfolder]: 121/958 cut-off events. [2022-11-20 11:37:48,306 INFO L131 PetriNetUnfolder]: For 22/25 co-relation queries the response was YES. [2022-11-20 11:37:48,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1196 conditions, 958 events. 121/958 cut-off events. For 22/25 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6434 event pairs, 25 based on Foata normal form. 1/803 useless extension candidates. Maximal degree in co-relation 1004. Up to 166 conditions per place. [2022-11-20 11:37:48,321 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 19 selfloop transitions, 3 changer transitions 0/167 dead transitions. [2022-11-20 11:37:48,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 167 transitions, 405 flow [2022-11-20 11:37:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:48,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2022-11-20 11:37:48,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.924006908462867 [2022-11-20 11:37:48,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2022-11-20 11:37:48,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2022-11-20 11:37:48,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:48,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2022-11-20 11:37:48,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,331 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 346 flow. Second operand 3 states and 535 transitions. [2022-11-20 11:37:48,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 167 transitions, 405 flow [2022-11-20 11:37:48,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 167 transitions, 399 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:48,349 INFO L231 Difference]: Finished difference. Result has 164 places, 162 transitions, 355 flow [2022-11-20 11:37:48,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=164, PETRI_TRANSITIONS=162} [2022-11-20 11:37:48,351 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -10 predicate places. [2022-11-20 11:37:48,353 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 162 transitions, 355 flow [2022-11-20 11:37:48,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:48,355 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] [2022-11-20 11:37:48,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:37:48,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash -923046858, now seen corresponding path program 1 times [2022-11-20 11:37:48,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:48,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936046118] [2022-11-20 11:37:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:48,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:48,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:48,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936046118] [2022-11-20 11:37:48,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936046118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:48,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:48,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:48,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860391223] [2022-11-20 11:37:48,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:48,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:48,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:48,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:48,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:48,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-20 11:37:48,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 162 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:48,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-20 11:37:48,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:48,632 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][101], [Black: 220#true, 42#L57-3true, 227#(= |#race~b~0| 0), 101#L74-4true, Black: 211#true, 180#L49-1true, 175#L41-1true, 213#(= |#race~a~0| 0), 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:48,633 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:48,633 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:48,633 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:48,634 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:48,642 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][101], [Black: 220#true, 42#L57-3true, 227#(= |#race~b~0| 0), 101#L74-4true, 99#L49-2true, Black: 211#true, 175#L41-1true, 213#(= |#race~a~0| 0), 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:48,643 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 11:37:48,643 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-20 11:37:48,643 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 11:37:48,643 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 11:37:48,708 INFO L130 PetriNetUnfolder]: 129/898 cut-off events. [2022-11-20 11:37:48,709 INFO L131 PetriNetUnfolder]: For 30/52 co-relation queries the response was YES. [2022-11-20 11:37:48,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 898 events. 129/898 cut-off events. For 30/52 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 6157 event pairs, 24 based on Foata normal form. 2/770 useless extension candidates. Maximal degree in co-relation 919. Up to 152 conditions per place. [2022-11-20 11:37:48,722 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 11:37:48,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 164 transitions, 393 flow [2022-11-20 11:37:48,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:48,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 537 transitions. [2022-11-20 11:37:48,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927461139896373 [2022-11-20 11:37:48,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 537 transitions. [2022-11-20 11:37:48,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 537 transitions. [2022-11-20 11:37:48,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:48,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 537 transitions. [2022-11-20 11:37:48,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,732 INFO L175 Difference]: Start difference. First operand has 164 places, 162 transitions, 355 flow. Second operand 3 states and 537 transitions. [2022-11-20 11:37:48,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 164 transitions, 393 flow [2022-11-20 11:37:48,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 164 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:37:48,737 INFO L231 Difference]: Finished difference. Result has 165 places, 162 transitions, 365 flow [2022-11-20 11:37:48,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=165, PETRI_TRANSITIONS=162} [2022-11-20 11:37:48,739 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-11-20 11:37:48,739 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 162 transitions, 365 flow [2022-11-20 11:37:48,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:48,740 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] [2022-11-20 11:37:48,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:37:48,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:48,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:48,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2107846938, now seen corresponding path program 1 times [2022-11-20 11:37:48,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:48,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466353806] [2022-11-20 11:37:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:48,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:48,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:48,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466353806] [2022-11-20 11:37:48,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466353806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:48,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:48,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614555723] [2022-11-20 11:37:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:48,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:48,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:48,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:48,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:48,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-20 11:37:48,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:48,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:48,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-20 11:37:48,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:48,979 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][99], [Black: 220#true, 42#L57-3true, 227#(= |#race~b~0| 0), 101#L74-4true, Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 213#(= |#race~a~0| 0), 230#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:48,979 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:48,979 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:48,979 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:48,980 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,000 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([438] L49-7-->L49-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][105], [Black: 220#true, 42#L57-3true, 227#(= |#race~b~0| 0), 101#L74-4true, Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 213#(= |#race~a~0| 0), 230#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:49,001 INFO L383 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-11-20 11:37:49,001 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,001 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,001 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:49,037 INFO L130 PetriNetUnfolder]: 83/609 cut-off events. [2022-11-20 11:37:49,037 INFO L131 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-11-20 11:37:49,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 609 events. 83/609 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3384 event pairs, 15 based on Foata normal form. 2/540 useless extension candidates. Maximal degree in co-relation 643. Up to 44 conditions per place. [2022-11-20 11:37:49,049 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/162 dead transitions. [2022-11-20 11:37:49,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 162 transitions, 397 flow [2022-11-20 11:37:49,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2022-11-20 11:37:49,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92573402417962 [2022-11-20 11:37:49,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2022-11-20 11:37:49,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2022-11-20 11:37:49,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:49,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2022-11-20 11:37:49,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,059 INFO L175 Difference]: Start difference. First operand has 165 places, 162 transitions, 365 flow. Second operand 3 states and 536 transitions. [2022-11-20 11:37:49,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 162 transitions, 397 flow [2022-11-20 11:37:49,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 162 transitions, 397 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:37:49,066 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 367 flow [2022-11-20 11:37:49,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2022-11-20 11:37:49,072 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-11-20 11:37:49,073 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 367 flow [2022-11-20 11:37:49,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:49,074 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] [2022-11-20 11:37:49,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:37:49,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash -976796320, now seen corresponding path program 1 times [2022-11-20 11:37:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:49,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063840668] [2022-11-20 11:37:49,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:49,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:49,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063840668] [2022-11-20 11:37:49,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063840668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:49,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:49,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:49,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925075427] [2022-11-20 11:37:49,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:49,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:49,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:49,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:49,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:49,204 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 11:37:49,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:49,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 11:37:49,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:49,310 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][98], [Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 175#L41-1true, 180#L49-1true, 213#(= |#race~a~0| 0), 234#true, 230#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:49,311 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:49,311 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:49,311 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,311 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,327 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([438] L49-7-->L49-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][104], [Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 175#L41-1true, 180#L49-1true, 213#(= |#race~a~0| 0), 234#true, 230#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:49,327 INFO L383 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-11-20 11:37:49,328 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,328 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:49,328 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,364 INFO L130 PetriNetUnfolder]: 68/547 cut-off events. [2022-11-20 11:37:49,365 INFO L131 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2022-11-20 11:37:49,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 547 events. 68/547 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2943 event pairs, 17 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 564. Up to 46 conditions per place. [2022-11-20 11:37:49,374 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2022-11-20 11:37:49,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 161 transitions, 403 flow [2022-11-20 11:37:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions. [2022-11-20 11:37:49,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9153713298791019 [2022-11-20 11:37:49,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 530 transitions. [2022-11-20 11:37:49,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 530 transitions. [2022-11-20 11:37:49,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:49,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 530 transitions. [2022-11-20 11:37:49,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,384 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 367 flow. Second operand 3 states and 530 transitions. [2022-11-20 11:37:49,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 161 transitions, 403 flow [2022-11-20 11:37:49,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:49,389 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 363 flow [2022-11-20 11:37:49,390 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2022-11-20 11:37:49,391 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -10 predicate places. [2022-11-20 11:37:49,391 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 363 flow [2022-11-20 11:37:49,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:49,392 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] [2022-11-20 11:37:49,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:37:49,393 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:49,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1688302027, now seen corresponding path program 1 times [2022-11-20 11:37:49,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:49,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996689475] [2022-11-20 11:37:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:49,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:49,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:49,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996689475] [2022-11-20 11:37:49,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996689475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:49,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:49,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:49,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412475962] [2022-11-20 11:37:49,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:49,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:49,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:49,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:49,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:49,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 11:37:49,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:49,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 11:37:49,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:49,560 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][97], [Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 213#(= |#race~a~0| 0), 238#true, 234#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:49,560 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:49,560 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,561 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:49,561 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,580 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([438] L49-7-->L49-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][103], [Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 213#(= |#race~a~0| 0), 234#true, 238#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:49,581 INFO L383 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-11-20 11:37:49,581 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,581 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:49,581 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:49,612 INFO L130 PetriNetUnfolder]: 87/606 cut-off events. [2022-11-20 11:37:49,612 INFO L131 PetriNetUnfolder]: For 23/31 co-relation queries the response was YES. [2022-11-20 11:37:49,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 606 events. 87/606 cut-off events. For 23/31 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3378 event pairs, 22 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 713. Up to 66 conditions per place. [2022-11-20 11:37:49,623 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2022-11-20 11:37:49,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 160 transitions, 399 flow [2022-11-20 11:37:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions. [2022-11-20 11:37:49,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9153713298791019 [2022-11-20 11:37:49,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 530 transitions. [2022-11-20 11:37:49,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 530 transitions. [2022-11-20 11:37:49,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:49,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 530 transitions. [2022-11-20 11:37:49,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,632 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 363 flow. Second operand 3 states and 530 transitions. [2022-11-20 11:37:49,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 160 transitions, 399 flow [2022-11-20 11:37:49,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:49,637 INFO L231 Difference]: Finished difference. Result has 163 places, 158 transitions, 361 flow [2022-11-20 11:37:49,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=361, PETRI_PLACES=163, PETRI_TRANSITIONS=158} [2022-11-20 11:37:49,638 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -11 predicate places. [2022-11-20 11:37:49,639 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 158 transitions, 361 flow [2022-11-20 11:37:49,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:49,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:49,640 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] [2022-11-20 11:37:49,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:37:49,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:49,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:49,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1768984947, now seen corresponding path program 1 times [2022-11-20 11:37:49,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:49,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814943227] [2022-11-20 11:37:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:49,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:50,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814943227] [2022-11-20 11:37:50,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814943227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:50,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:50,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:37:50,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115939487] [2022-11-20 11:37:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:37:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:50,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:37:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:37:50,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-11-20 11:37:50,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 158 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:50,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-11-20 11:37:50,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:50,351 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][97], [Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 242#true, 213#(= |#race~a~0| 0), 238#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:50,352 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:50,352 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:50,352 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:50,352 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:50,399 INFO L130 PetriNetUnfolder]: 44/436 cut-off events. [2022-11-20 11:37:50,400 INFO L131 PetriNetUnfolder]: For 1/9 co-relation queries the response was YES. [2022-11-20 11:37:50,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 436 events. 44/436 cut-off events. For 1/9 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2054 event pairs, 5 based on Foata normal form. 4/393 useless extension candidates. Maximal degree in co-relation 475. Up to 34 conditions per place. [2022-11-20 11:37:50,407 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 23 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2022-11-20 11:37:50,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 157 transitions, 413 flow [2022-11-20 11:37:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:37:50,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:37:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-20 11:37:50,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.842832469775475 [2022-11-20 11:37:50,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-20 11:37:50,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-20 11:37:50,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:50,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-20 11:37:50,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,420 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,420 INFO L175 Difference]: Start difference. First operand has 163 places, 158 transitions, 361 flow. Second operand 6 states and 976 transitions. [2022-11-20 11:37:50,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 157 transitions, 413 flow [2022-11-20 11:37:50,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 157 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:50,425 INFO L231 Difference]: Finished difference. Result has 165 places, 157 transitions, 363 flow [2022-11-20 11:37:50,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=165, PETRI_TRANSITIONS=157} [2022-11-20 11:37:50,427 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-11-20 11:37:50,427 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 157 transitions, 363 flow [2022-11-20 11:37:50,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:50,428 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] [2022-11-20 11:37:50,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:37:50,428 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:50,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:50,429 INFO L85 PathProgramCache]: Analyzing trace with hash -657938527, now seen corresponding path program 1 times [2022-11-20 11:37:50,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:50,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084667562] [2022-11-20 11:37:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:50,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:50,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:50,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084667562] [2022-11-20 11:37:50,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084667562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:50,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:50,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:50,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371935155] [2022-11-20 11:37:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:50,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:50,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:50,483 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-20 11:37:50,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 157 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:50,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-20 11:37:50,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:50,569 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][97], [Black: 220#true, 42#L57-3true, 227#(= |#race~b~0| 0), 101#L74-4true, Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 242#true, 213#(= |#race~a~0| 0), 249#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:50,570 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:50,570 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:50,570 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:50,570 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:50,614 INFO L130 PetriNetUnfolder]: 77/536 cut-off events. [2022-11-20 11:37:50,614 INFO L131 PetriNetUnfolder]: For 30/39 co-relation queries the response was YES. [2022-11-20 11:37:50,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 536 events. 77/536 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2909 event pairs, 14 based on Foata normal form. 7/496 useless extension candidates. Maximal degree in co-relation 679. Up to 49 conditions per place. [2022-11-20 11:37:50,623 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 10 selfloop transitions, 2 changer transitions 7/157 dead transitions. [2022-11-20 11:37:50,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 157 transitions, 393 flow [2022-11-20 11:37:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:50,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2022-11-20 11:37:50,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.924006908462867 [2022-11-20 11:37:50,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2022-11-20 11:37:50,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2022-11-20 11:37:50,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:50,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2022-11-20 11:37:50,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,631 INFO L175 Difference]: Start difference. First operand has 165 places, 157 transitions, 363 flow. Second operand 3 states and 535 transitions. [2022-11-20 11:37:50,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 157 transitions, 393 flow [2022-11-20 11:37:50,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 157 transitions, 386 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:37:50,636 INFO L231 Difference]: Finished difference. Result has 161 places, 148 transitions, 341 flow [2022-11-20 11:37:50,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=161, PETRI_TRANSITIONS=148} [2022-11-20 11:37:50,637 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -13 predicate places. [2022-11-20 11:37:50,637 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 148 transitions, 341 flow [2022-11-20 11:37:50,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:50,638 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] [2022-11-20 11:37:50,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:37:50,638 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash 345281638, now seen corresponding path program 1 times [2022-11-20 11:37:50,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:50,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475818370] [2022-11-20 11:37:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:50,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:50,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475818370] [2022-11-20 11:37:50,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475818370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:50,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:50,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:37:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371303828] [2022-11-20 11:37:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:50,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:37:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:37:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:37:50,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 11:37:50,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 148 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:50,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 11:37:50,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:50,810 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][97], [Black: 220#true, 253#true, 42#L57-3true, 227#(= |#race~b~0| 0), 101#L74-4true, Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 213#(= |#race~a~0| 0), 249#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:50,810 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:50,811 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:50,811 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:50,811 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:50,860 INFO L130 PetriNetUnfolder]: 75/559 cut-off events. [2022-11-20 11:37:50,861 INFO L131 PetriNetUnfolder]: For 49/54 co-relation queries the response was YES. [2022-11-20 11:37:50,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 559 events. 75/559 cut-off events. For 49/54 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3061 event pairs, 23 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 733. Up to 81 conditions per place. [2022-11-20 11:37:50,871 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2022-11-20 11:37:50,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 371 flow [2022-11-20 11:37:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:37:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:37:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-20 11:37:50,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-20 11:37:50,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-20 11:37:50,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-20 11:37:50,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:50,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-20 11:37:50,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,883 INFO L175 Difference]: Start difference. First operand has 161 places, 148 transitions, 341 flow. Second operand 3 states and 527 transitions. [2022-11-20 11:37:50,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 371 flow [2022-11-20 11:37:50,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:50,889 INFO L231 Difference]: Finished difference. Result has 153 places, 147 transitions, 339 flow [2022-11-20 11:37:50,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=153, PETRI_TRANSITIONS=147} [2022-11-20 11:37:50,891 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -21 predicate places. [2022-11-20 11:37:50,892 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 147 transitions, 339 flow [2022-11-20 11:37:50,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:50,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:50,893 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] [2022-11-20 11:37:50,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:37:50,893 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash 175687448, now seen corresponding path program 1 times [2022-11-20 11:37:50,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:50,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619633221] [2022-11-20 11:37:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:50,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:51,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:51,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619633221] [2022-11-20 11:37:51,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619633221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:51,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:51,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:37:51,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760809678] [2022-11-20 11:37:51,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:51,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:37:51,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:51,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:37:51,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:37:51,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-11-20 11:37:51,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 147 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:51,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:51,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-11-20 11:37:51,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:51,680 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][97], [253#true, Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 257#true, 213#(= |#race~a~0| 0), 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:51,680 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:51,680 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:51,680 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:51,680 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:51,728 INFO L130 PetriNetUnfolder]: 44/402 cut-off events. [2022-11-20 11:37:51,728 INFO L131 PetriNetUnfolder]: For 1/9 co-relation queries the response was YES. [2022-11-20 11:37:51,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 402 events. 44/402 cut-off events. For 1/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1863 event pairs, 5 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 473. Up to 31 conditions per place. [2022-11-20 11:37:51,735 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 21 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2022-11-20 11:37:51,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 146 transitions, 387 flow [2022-11-20 11:37:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:37:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:37:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2022-11-20 11:37:51,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8411053540587219 [2022-11-20 11:37:51,739 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2022-11-20 11:37:51,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2022-11-20 11:37:51,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:51,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2022-11-20 11:37:51,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:51,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:51,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:51,748 INFO L175 Difference]: Start difference. First operand has 153 places, 147 transitions, 339 flow. Second operand 6 states and 974 transitions. [2022-11-20 11:37:51,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 146 transitions, 387 flow [2022-11-20 11:37:51,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 146 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:37:51,753 INFO L231 Difference]: Finished difference. Result has 155 places, 146 transitions, 341 flow [2022-11-20 11:37:51,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=341, PETRI_PLACES=155, PETRI_TRANSITIONS=146} [2022-11-20 11:37:51,754 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2022-11-20 11:37:51,754 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 146 transitions, 341 flow [2022-11-20 11:37:51,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:51,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:51,755 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] [2022-11-20 11:37:51,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:37:51,756 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:37:51,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:51,756 INFO L85 PathProgramCache]: Analyzing trace with hash -838188885, now seen corresponding path program 1 times [2022-11-20 11:37:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:51,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369208936] [2022-11-20 11:37:51,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:51,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:52,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:52,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:52,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369208936] [2022-11-20 11:37:52,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369208936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:52,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:52,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:37:52,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119577159] [2022-11-20 11:37:52,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:52,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:37:52,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:52,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:37:52,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:37:52,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-11-20 11:37:52,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 146 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:52,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:52,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-11-20 11:37:52,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:52,509 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([467] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][97], [Black: 220#true, 42#L57-3true, 101#L74-4true, 227#(= |#race~b~0| 0), Black: 225#true, Black: 211#true, 180#L49-1true, 175#L41-1true, 257#true, 213#(= |#race~a~0| 0), 264#true, 222#(= |#race~c~0| 0)]) [2022-11-20 11:37:52,509 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is cut-off event [2022-11-20 11:37:52,509 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:52,509 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-20 11:37:52,509 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 11:37:52,551 INFO L130 PetriNetUnfolder]: 44/400 cut-off events. [2022-11-20 11:37:52,551 INFO L131 PetriNetUnfolder]: For 3/11 co-relation queries the response was YES. [2022-11-20 11:37:52,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 400 events. 44/400 cut-off events. For 3/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1857 event pairs, 5 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 479. Up to 31 conditions per place. [2022-11-20 11:37:52,556 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-11-20 11:37:52,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 387 flow [2022-11-20 11:37:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:37:52,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:37:52,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-11-20 11:37:52,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8402417962003454 [2022-11-20 11:37:52,560 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2022-11-20 11:37:52,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2022-11-20 11:37:52,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:52,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2022-11-20 11:37:52,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:52,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:52,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:52,569 INFO L175 Difference]: Start difference. First operand has 155 places, 146 transitions, 341 flow. Second operand 6 states and 973 transitions. [2022-11-20 11:37:52,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 387 flow [2022-11-20 11:37:52,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 145 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:37:52,572 INFO L231 Difference]: Finished difference. Result has 155 places, 0 transitions, 0 flow [2022-11-20 11:37:52,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=155, PETRI_TRANSITIONS=0} [2022-11-20 11:37:52,574 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2022-11-20 11:37:52,575 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 0 transitions, 0 flow [2022-11-20 11:37:52,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:52,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-11-20 11:37:52,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-11-20 11:37:52,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-11-20 11:37:52,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-11-20 11:37:52,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-11-20 11:37:52,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-11-20 11:37:52,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-11-20 11:37:52,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-11-20 11:37:52,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-11-20 11:37:52,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-11-20 11:37:52,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-11-20 11:37:52,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-11-20 11:37:52,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-11-20 11:37:52,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-11-20 11:37:52,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-11-20 11:37:52,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-11-20 11:37:52,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-11-20 11:37:52,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-11-20 11:37:52,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-11-20 11:37:52,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-11-20 11:37:52,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-11-20 11:37:52,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-11-20 11:37:52,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2022-11-20 11:37:52,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2022-11-20 11:37:52,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-11-20 11:37:52,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2022-11-20 11:37:52,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-11-20 11:37:52,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-11-20 11:37:52,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-11-20 11:37:52,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-11-20 11:37:52,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-11-20 11:37:52,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-11-20 11:37:52,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-11-20 11:37:52,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-11-20 11:37:52,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-11-20 11:37:52,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-11-20 11:37:52,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-11-20 11:37:52,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-11-20 11:37:52,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:37:52,594 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:37:52,604 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:37:52,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:37:52,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:37:52 BasicIcfg [2022-11-20 11:37:52,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:37:52,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:37:52,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:37:52,614 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:37:52,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:45" (3/4) ... [2022-11-20 11:37:52,619 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:37:52,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 11:37:52,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 11:37:52,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 11:37:52,640 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 11:37:52,640 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:37:52,641 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:37:52,641 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:37:52,721 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:37:52,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:37:52,722 INFO L158 Benchmark]: Toolchain (without parser) took 9204.83ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 107.7MB in the beginning and 48.8MB in the end (delta: 58.9MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,722 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:37:52,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.68ms. Allocated memory is still 148.9MB. Free memory was 107.2MB in the beginning and 114.4MB in the end (delta: -7.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.12ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 112.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,724 INFO L158 Benchmark]: Boogie Preprocessor took 44.76ms. Allocated memory is still 148.9MB. Free memory was 112.8MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,724 INFO L158 Benchmark]: RCFGBuilder took 999.05ms. Allocated memory is still 148.9MB. Free memory was 110.7MB in the beginning and 92.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,729 INFO L158 Benchmark]: TraceAbstraction took 7533.25ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 91.8MB in the beginning and 51.9MB in the end (delta: 39.9MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,730 INFO L158 Benchmark]: Witness Printer took 107.13ms. Allocated memory is still 186.6MB. Free memory was 51.9MB in the beginning and 48.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:37:52,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.68ms. Allocated memory is still 148.9MB. Free memory was 107.2MB in the beginning and 114.4MB in the end (delta: -7.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.12ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 112.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.76ms. Allocated memory is still 148.9MB. Free memory was 112.8MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 999.05ms. Allocated memory is still 148.9MB. Free memory was 110.7MB in the beginning and 92.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7533.25ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 91.8MB in the beginning and 51.9MB in the end (delta: 39.9MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. * Witness Printer took 107.13ms. Allocated memory is still 186.6MB. Free memory was 51.9MB in the beginning and 48.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: 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: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: 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: 79]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 262 locations, 38 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: 7.3s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 117 mSDtfsCounter, 373 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=367occurred in iteration=8, InterpolantAutomatonStates: 54, 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, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 825 NumberOfCodeBlocks, 825 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 810 ConstructedInterpolants, 0 QuantifiedInterpolants, 1077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:37:52,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8e31fa-261c-4c1b-83ca-fb02a7ad9be5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE