./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:42:16,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:42:16,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:42:16,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:42:16,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:42:16,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:42:16,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:42:16,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:42:16,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:42:16,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:42:16,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:42:16,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:42:16,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:42:16,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:42:16,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:42:16,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:42:16,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:42:16,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:42:16,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:42:16,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:42:16,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:42:16,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:42:16,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:42:16,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:42:16,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:42:16,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:42:16,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:42:16,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:42:16,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:42:16,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:42:16,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:42:16,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:42:16,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:42:16,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:42:16,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:42:16,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:42:16,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:42:16,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:42:16,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:42:16,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:42:16,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:42:16,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 12:42:16,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:42:16,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:42:16,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:42:16,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:42:16,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:42:16,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:42:16,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:42:16,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:42:16,946 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:42:16,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:42:16,946 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:42:16,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:42:16,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:42:16,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:42:16,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:42:16,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:42:16,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:42:16,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:42:16,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:42:16,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:42:16,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:42:16,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:42:16,950 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:42:16,950 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2022-12-13 12:42:17,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:42:17,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:42:17,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:42:17,144 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:42:17,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:42:17,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-12-13 12:42:19,680 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:42:19,845 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:42:19,846 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-12-13 12:42:19,850 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/data/e2c8edc8f/dab83aab6d9345a19da2b0de1fed61e3/FLAG51fd3b3e1 [2022-12-13 12:42:20,252 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/data/e2c8edc8f/dab83aab6d9345a19da2b0de1fed61e3 [2022-12-13 12:42:20,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:42:20,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:42:20,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:42:20,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:42:20,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:42:20,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c403452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20, skipping insertion in model container [2022-12-13 12:42:20,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:42:20,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:42:20,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:20,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:20,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:20,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:20,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:20,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:20,408 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_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-12-13 12:42:20,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:42:20,419 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:42:20,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:20,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:20,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:20,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:20,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:20,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:20,444 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_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-12-13 12:42:20,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:42:20,457 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:42:20,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20 WrapperNode [2022-12-13 12:42:20,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:42:20,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:42:20,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:42:20,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:42:20,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,498 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 437 [2022-12-13 12:42:20,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:42:20,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:42:20,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:42:20,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:42:20,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:42:20,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:42:20,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:42:20,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:42:20,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (1/1) ... [2022-12-13 12:42:20,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:42:20,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:42:20,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:42:20,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 12:42:20,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 12:42:20,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 12:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 12:42:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 12:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:42:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:42:20,594 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:42:20,689 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:42:20,690 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:42:21,233 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:42:21,387 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:42:21,387 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 12:42:21,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:21 BoogieIcfgContainer [2022-12-13 12:42:21,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:42:21,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:42:21,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:42:21,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:42:21,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:42:20" (1/3) ... [2022-12-13 12:42:21,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a476a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:42:21, skipping insertion in model container [2022-12-13 12:42:21,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:20" (2/3) ... [2022-12-13 12:42:21,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a476a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:42:21, skipping insertion in model container [2022-12-13 12:42:21,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:21" (3/3) ... [2022-12-13 12:42:21,396 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-12-13 12:42:21,402 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:42:21,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:42:21,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-12-13 12:42:21,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:42:21,487 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 12:42:21,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 412 places, 428 transitions, 880 flow [2022-12-13 12:42:21,609 INFO L130 PetriNetUnfolder]: 26/425 cut-off events. [2022-12-13 12:42:21,610 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:42:21,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 26/425 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 804 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 313. Up to 2 conditions per place. [2022-12-13 12:42:21,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 412 places, 428 transitions, 880 flow [2022-12-13 12:42:21,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 405 transitions, 828 flow [2022-12-13 12:42:21,626 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:42:21,634 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 405 transitions, 828 flow [2022-12-13 12:42:21,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 405 transitions, 828 flow [2022-12-13 12:42:21,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 390 places, 405 transitions, 828 flow [2022-12-13 12:42:21,701 INFO L130 PetriNetUnfolder]: 25/405 cut-off events. [2022-12-13 12:42:21,701 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:42:21,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 405 events. 25/405 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 798 event pairs, 0 based on Foata normal form. 0/333 useless extension candidates. Maximal degree in co-relation 313. Up to 2 conditions per place. [2022-12-13 12:42:21,712 INFO L119 LiptonReduction]: Number of co-enabled transitions 29394 [2022-12-13 12:42:30,902 INFO L134 LiptonReduction]: Checked pairs total: 201357 [2022-12-13 12:42:30,902 INFO L136 LiptonReduction]: Total number of compositions: 373 [2022-12-13 12:42:30,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:42:30,923 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;@7d9321cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:42:30,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-12-13 12:42:30,924 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:42:30,924 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:30,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:30,925 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:42:30,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1836, now seen corresponding path program 1 times [2022-12-13 12:42:30,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:30,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738258806] [2022-12-13 12:42:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:30,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:31,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738258806] [2022-12-13 12:42:31,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738258806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:31,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:31,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:42:31,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078254014] [2022-12-13 12:42:31,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:31,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:42:31,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:42:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:42:31,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 801 [2022-12-13 12:42:31,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 153 transitions, 324 flow. Second operand has 2 states, 2 states have (on average 389.5) internal successors, (779), 2 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:31,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:31,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 801 [2022-12-13 12:42:31,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:31,646 INFO L130 PetriNetUnfolder]: 2339/5676 cut-off events. [2022-12-13 12:42:31,647 INFO L131 PetriNetUnfolder]: For 178/178 co-relation queries the response was YES. [2022-12-13 12:42:31,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8932 conditions, 5676 events. 2339/5676 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 49561 event pairs, 1473 based on Foata normal form. 1132/5327 useless extension candidates. Maximal degree in co-relation 7752. Up to 3109 conditions per place. [2022-12-13 12:42:31,678 INFO L137 encePairwiseOnDemand]: 769/801 looper letters, 36 selfloop transitions, 0 changer transitions 1/121 dead transitions. [2022-12-13 12:42:31,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 121 transitions, 334 flow [2022-12-13 12:42:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:42:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:42:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 847 transitions. [2022-12-13 12:42:31,692 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5287141073657927 [2022-12-13 12:42:31,693 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 847 transitions. [2022-12-13 12:42:31,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 847 transitions. [2022-12-13 12:42:31,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:31,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 847 transitions. [2022-12-13 12:42:31,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 423.5) internal successors, (847), 2 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:31,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 801.0) internal successors, (2403), 3 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:31,712 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 801.0) internal successors, (2403), 3 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:31,713 INFO L175 Difference]: Start difference. First operand has 149 places, 153 transitions, 324 flow. Second operand 2 states and 847 transitions. [2022-12-13 12:42:31,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 121 transitions, 334 flow [2022-12-13 12:42:31,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 121 transitions, 322 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 12:42:31,721 INFO L231 Difference]: Finished difference. Result has 118 places, 120 transitions, 245 flow [2022-12-13 12:42:31,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=118, PETRI_TRANSITIONS=120} [2022-12-13 12:42:31,726 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2022-12-13 12:42:31,726 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 245 flow [2022-12-13 12:42:31,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 389.5) internal successors, (779), 2 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:31,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:31,727 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:31,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:42:31,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:31,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash 597621189, now seen corresponding path program 1 times [2022-12-13 12:42:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:31,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123645820] [2022-12-13 12:42:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:31,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:31,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123645820] [2022-12-13 12:42:31,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123645820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:31,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:31,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729461695] [2022-12-13 12:42:31,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:31,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:31,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:31,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:31,869 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 801 [2022-12-13 12:42:31,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:31,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:31,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 801 [2022-12-13 12:42:31,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:32,499 INFO L130 PetriNetUnfolder]: 3117/6693 cut-off events. [2022-12-13 12:42:32,499 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-12-13 12:42:32,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10941 conditions, 6693 events. 3117/6693 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 55055 event pairs, 2131 based on Foata normal form. 0/5034 useless extension candidates. Maximal degree in co-relation 10938. Up to 4195 conditions per place. [2022-12-13 12:42:32,533 INFO L137 encePairwiseOnDemand]: 798/801 looper letters, 38 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2022-12-13 12:42:32,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 118 transitions, 319 flow [2022-12-13 12:42:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:32,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2022-12-13 12:42:32,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48647523928422803 [2022-12-13 12:42:32,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2022-12-13 12:42:32,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2022-12-13 12:42:32,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:32,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2022-12-13 12:42:32,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:32,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:32,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:32,543 INFO L175 Difference]: Start difference. First operand has 118 places, 120 transitions, 245 flow. Second operand 3 states and 1169 transitions. [2022-12-13 12:42:32,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 118 transitions, 319 flow [2022-12-13 12:42:32,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 118 transitions, 319 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:42:32,544 INFO L231 Difference]: Finished difference. Result has 117 places, 118 transitions, 243 flow [2022-12-13 12:42:32,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=117, PETRI_TRANSITIONS=118} [2022-12-13 12:42:32,545 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2022-12-13 12:42:32,545 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 118 transitions, 243 flow [2022-12-13 12:42:32,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:32,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:32,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:32,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:42:32,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1211300243, now seen corresponding path program 1 times [2022-12-13 12:42:32,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:32,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924871991] [2022-12-13 12:42:32,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:32,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:32,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:32,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924871991] [2022-12-13 12:42:32,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924871991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:32,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:32,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038812559] [2022-12-13 12:42:32,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:32,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:32,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:32,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:32,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 801 [2022-12-13 12:42:32,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 118 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:32,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:32,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 801 [2022-12-13 12:42:32,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:33,736 INFO L130 PetriNetUnfolder]: 7187/14235 cut-off events. [2022-12-13 12:42:33,737 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-12-13 12:42:33,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24087 conditions, 14235 events. 7187/14235 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 119968 event pairs, 2336 based on Foata normal form. 0/12030 useless extension candidates. Maximal degree in co-relation 24083. Up to 9481 conditions per place. [2022-12-13 12:42:33,789 INFO L137 encePairwiseOnDemand]: 792/801 looper letters, 61 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2022-12-13 12:42:33,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 130 transitions, 399 flow [2022-12-13 12:42:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1180 transitions. [2022-12-13 12:42:33,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4910528506034124 [2022-12-13 12:42:33,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1180 transitions. [2022-12-13 12:42:33,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1180 transitions. [2022-12-13 12:42:33,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:33,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1180 transitions. [2022-12-13 12:42:33,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:33,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:33,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:33,798 INFO L175 Difference]: Start difference. First operand has 117 places, 118 transitions, 243 flow. Second operand 3 states and 1180 transitions. [2022-12-13 12:42:33,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 130 transitions, 399 flow [2022-12-13 12:42:33,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 130 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:42:33,801 INFO L231 Difference]: Finished difference. Result has 113 places, 115 transitions, 251 flow [2022-12-13 12:42:33,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=113, PETRI_TRANSITIONS=115} [2022-12-13 12:42:33,801 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -36 predicate places. [2022-12-13 12:42:33,802 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 115 transitions, 251 flow [2022-12-13 12:42:33,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:33,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:33,803 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:33,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:42:33,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash -759333583, now seen corresponding path program 1 times [2022-12-13 12:42:33,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:33,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906874454] [2022-12-13 12:42:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:33,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:33,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:33,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906874454] [2022-12-13 12:42:33,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906874454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:33,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:33,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:33,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088001404] [2022-12-13 12:42:33,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:33,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:33,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:33,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:33,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:33,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 801 [2022-12-13 12:42:33,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 115 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:33,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:33,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 801 [2022-12-13 12:42:33,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:34,564 INFO L130 PetriNetUnfolder]: 3536/8097 cut-off events. [2022-12-13 12:42:34,564 INFO L131 PetriNetUnfolder]: For 281/281 co-relation queries the response was YES. [2022-12-13 12:42:34,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13304 conditions, 8097 events. 3536/8097 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 72672 event pairs, 2443 based on Foata normal form. 0/6563 useless extension candidates. Maximal degree in co-relation 13300. Up to 4835 conditions per place. [2022-12-13 12:42:34,604 INFO L137 encePairwiseOnDemand]: 798/801 looper letters, 38 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2022-12-13 12:42:34,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 113 transitions, 325 flow [2022-12-13 12:42:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2022-12-13 12:42:34,609 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48605909280066584 [2022-12-13 12:42:34,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2022-12-13 12:42:34,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2022-12-13 12:42:34,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:34,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2022-12-13 12:42:34,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:34,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:34,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:34,616 INFO L175 Difference]: Start difference. First operand has 113 places, 115 transitions, 251 flow. Second operand 3 states and 1168 transitions. [2022-12-13 12:42:34,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 113 transitions, 325 flow [2022-12-13 12:42:34,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 113 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:42:34,619 INFO L231 Difference]: Finished difference. Result has 113 places, 113 transitions, 249 flow [2022-12-13 12:42:34,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2022-12-13 12:42:34,620 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -36 predicate places. [2022-12-13 12:42:34,620 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 249 flow [2022-12-13 12:42:34,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:34,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:34,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:34,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:42:34,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:34,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1559362319, now seen corresponding path program 1 times [2022-12-13 12:42:34,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:34,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290057212] [2022-12-13 12:42:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:34,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:34,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:34,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:34,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290057212] [2022-12-13 12:42:34,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290057212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:34,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:34,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:42:34,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217618398] [2022-12-13 12:42:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:34,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:42:34,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:34,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:42:34,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:42:34,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 801 [2022-12-13 12:42:34,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 381.25) internal successors, (1525), 4 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:34,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:34,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 801 [2022-12-13 12:42:34,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:35,498 INFO L130 PetriNetUnfolder]: 2909/7075 cut-off events. [2022-12-13 12:42:35,499 INFO L131 PetriNetUnfolder]: For 235/235 co-relation queries the response was YES. [2022-12-13 12:42:35,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11307 conditions, 7075 events. 2909/7075 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 64982 event pairs, 1848 based on Foata normal form. 1/5417 useless extension candidates. Maximal degree in co-relation 11302. Up to 3947 conditions per place. [2022-12-13 12:42:35,526 INFO L137 encePairwiseOnDemand]: 797/801 looper letters, 36 selfloop transitions, 2 changer transitions 2/116 dead transitions. [2022-12-13 12:42:35,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 116 transitions, 335 flow [2022-12-13 12:42:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:42:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:42:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1556 transitions. [2022-12-13 12:42:35,529 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48564294631710364 [2022-12-13 12:42:35,529 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1556 transitions. [2022-12-13 12:42:35,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1556 transitions. [2022-12-13 12:42:35,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:35,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1556 transitions. [2022-12-13 12:42:35,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:35,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 801.0) internal successors, (4005), 5 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:35,536 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 801.0) internal successors, (4005), 5 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:35,536 INFO L175 Difference]: Start difference. First operand has 113 places, 113 transitions, 249 flow. Second operand 4 states and 1556 transitions. [2022-12-13 12:42:35,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 116 transitions, 335 flow [2022-12-13 12:42:35,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:42:35,537 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 262 flow [2022-12-13 12:42:35,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2022-12-13 12:42:35,538 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2022-12-13 12:42:35,538 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 262 flow [2022-12-13 12:42:35,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 381.25) internal successors, (1525), 4 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:35,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:35,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:35,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:42:35,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:35,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1585733638, now seen corresponding path program 1 times [2022-12-13 12:42:35,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:35,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895270263] [2022-12-13 12:42:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:35,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:42:35,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:35,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895270263] [2022-12-13 12:42:35,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895270263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:35,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:35,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:35,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630481726] [2022-12-13 12:42:35,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:35,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:35,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:36,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 801 [2022-12-13 12:42:36,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:36,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:36,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 801 [2022-12-13 12:42:36,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:37,631 INFO L130 PetriNetUnfolder]: 8544/13671 cut-off events. [2022-12-13 12:42:37,631 INFO L131 PetriNetUnfolder]: For 443/443 co-relation queries the response was YES. [2022-12-13 12:42:37,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25469 conditions, 13671 events. 8544/13671 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 100816 event pairs, 970 based on Foata normal form. 0/10544 useless extension candidates. Maximal degree in co-relation 25462. Up to 4146 conditions per place. [2022-12-13 12:42:37,681 INFO L137 encePairwiseOnDemand]: 796/801 looper letters, 126 selfloop transitions, 4 changer transitions 0/201 dead transitions. [2022-12-13 12:42:37,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 201 transitions, 716 flow [2022-12-13 12:42:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2357 transitions. [2022-12-13 12:42:37,685 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4904286308780691 [2022-12-13 12:42:37,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2357 transitions. [2022-12-13 12:42:37,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2357 transitions. [2022-12-13 12:42:37,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:37,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2357 transitions. [2022-12-13 12:42:37,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 392.8333333333333) internal successors, (2357), 6 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:37,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:37,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:37,695 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 262 flow. Second operand 6 states and 2357 transitions. [2022-12-13 12:42:37,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 201 transitions, 716 flow [2022-12-13 12:42:37,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 201 transitions, 710 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:37,698 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 262 flow [2022-12-13 12:42:37,698 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2022-12-13 12:42:37,699 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2022-12-13 12:42:37,699 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 262 flow [2022-12-13 12:42:37,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:37,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:37,700 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:37,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:42:37,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:37,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:37,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1335765144, now seen corresponding path program 1 times [2022-12-13 12:42:37,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:37,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026575528] [2022-12-13 12:42:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:37,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:42:37,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:37,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026575528] [2022-12-13 12:42:37,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026575528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:37,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:37,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:37,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539599712] [2022-12-13 12:42:37,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:37,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:37,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:37,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:38,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 801 [2022-12-13 12:42:38,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 367.0) internal successors, (2202), 6 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:38,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:38,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 801 [2022-12-13 12:42:38,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:39,478 INFO L130 PetriNetUnfolder]: 6097/11239 cut-off events. [2022-12-13 12:42:39,478 INFO L131 PetriNetUnfolder]: For 1255/1255 co-relation queries the response was YES. [2022-12-13 12:42:39,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21340 conditions, 11239 events. 6097/11239 cut-off events. For 1255/1255 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 91810 event pairs, 1490 based on Foata normal form. 0/9289 useless extension candidates. Maximal degree in co-relation 21334. Up to 3940 conditions per place. [2022-12-13 12:42:39,516 INFO L137 encePairwiseOnDemand]: 794/801 looper letters, 123 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2022-12-13 12:42:39,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 191 transitions, 698 flow [2022-12-13 12:42:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2318 transitions. [2022-12-13 12:42:39,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4823137744486059 [2022-12-13 12:42:39,519 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2318 transitions. [2022-12-13 12:42:39,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2318 transitions. [2022-12-13 12:42:39,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:39,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2318 transitions. [2022-12-13 12:42:39,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.3333333333333) internal successors, (2318), 6 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:39,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:39,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:39,527 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 262 flow. Second operand 6 states and 2318 transitions. [2022-12-13 12:42:39,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 191 transitions, 698 flow [2022-12-13 12:42:39,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 683 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:39,537 INFO L231 Difference]: Finished difference. Result has 117 places, 111 transitions, 261 flow [2022-12-13 12:42:39,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=117, PETRI_TRANSITIONS=111} [2022-12-13 12:42:39,538 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2022-12-13 12:42:39,538 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 111 transitions, 261 flow [2022-12-13 12:42:39,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.0) internal successors, (2202), 6 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:39,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:39,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:39,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:42:39,539 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash 524959946, now seen corresponding path program 1 times [2022-12-13 12:42:39,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:39,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343136299] [2022-12-13 12:42:39,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:42:39,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:39,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343136299] [2022-12-13 12:42:39,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343136299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:39,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:39,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:39,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973066331] [2022-12-13 12:42:39,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:39,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:39,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:39,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:39,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:39,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 801 [2022-12-13 12:42:39,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 111 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:39,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:39,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 801 [2022-12-13 12:42:39,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:40,346 INFO L130 PetriNetUnfolder]: 4162/9342 cut-off events. [2022-12-13 12:42:40,346 INFO L131 PetriNetUnfolder]: For 443/443 co-relation queries the response was YES. [2022-12-13 12:42:40,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15620 conditions, 9342 events. 4162/9342 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 83862 event pairs, 2768 based on Foata normal form. 0/7865 useless extension candidates. Maximal degree in co-relation 15614. Up to 5636 conditions per place. [2022-12-13 12:42:40,382 INFO L137 encePairwiseOnDemand]: 797/801 looper letters, 40 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2022-12-13 12:42:40,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 108 transitions, 337 flow [2022-12-13 12:42:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:40,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2022-12-13 12:42:40,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4868913857677903 [2022-12-13 12:42:40,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2022-12-13 12:42:40,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2022-12-13 12:42:40,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:40,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2022-12-13 12:42:40,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:40,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:40,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 801.0) internal successors, (3204), 4 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:40,391 INFO L175 Difference]: Start difference. First operand has 117 places, 111 transitions, 261 flow. Second operand 3 states and 1170 transitions. [2022-12-13 12:42:40,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 108 transitions, 337 flow [2022-12-13 12:42:40,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 108 transitions, 327 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:40,395 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 247 flow [2022-12-13 12:42:40,395 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=111, PETRI_TRANSITIONS=108} [2022-12-13 12:42:40,396 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -38 predicate places. [2022-12-13 12:42:40,396 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 247 flow [2022-12-13 12:42:40,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:40,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:40,396 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:40,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:42:40,397 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1192260973, now seen corresponding path program 1 times [2022-12-13 12:42:40,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:40,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628532866] [2022-12-13 12:42:40,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:40,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:40,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:40,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628532866] [2022-12-13 12:42:40,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628532866] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:42:40,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180662155] [2022-12-13 12:42:40,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:40,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:42:40,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:42:40,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:42:40,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:42:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:40,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:42:40,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:40,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:40,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:42:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:40,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180662155] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:42:40,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:42:40,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 12:42:40,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812115943] [2022-12-13 12:42:40,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:42:40,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 12:42:40,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 12:42:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:42:41,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 801 [2022-12-13 12:42:41,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 247 flow. Second operand has 13 states, 13 states have (on average 370.46153846153845) internal successors, (4816), 13 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:41,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:41,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 801 [2022-12-13 12:42:41,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:42,413 INFO L130 PetriNetUnfolder]: 4008/8703 cut-off events. [2022-12-13 12:42:42,414 INFO L131 PetriNetUnfolder]: For 375/408 co-relation queries the response was YES. [2022-12-13 12:42:42,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14945 conditions, 8703 events. 4008/8703 cut-off events. For 375/408 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 78208 event pairs, 1743 based on Foata normal form. 22/7057 useless extension candidates. Maximal degree in co-relation 14939. Up to 3271 conditions per place. [2022-12-13 12:42:42,448 INFO L137 encePairwiseOnDemand]: 794/801 looper letters, 106 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2022-12-13 12:42:42,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 182 transitions, 652 flow [2022-12-13 12:42:42,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:42:42,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 12:42:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3062 transitions. [2022-12-13 12:42:42,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4778401997503121 [2022-12-13 12:42:42,452 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3062 transitions. [2022-12-13 12:42:42,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3062 transitions. [2022-12-13 12:42:42,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:42,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3062 transitions. [2022-12-13 12:42:42,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 382.75) internal successors, (3062), 8 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:42,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 801.0) internal successors, (7209), 9 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:42,460 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 801.0) internal successors, (7209), 9 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:42,461 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 247 flow. Second operand 8 states and 3062 transitions. [2022-12-13 12:42:42,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 182 transitions, 652 flow [2022-12-13 12:42:42,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 182 transitions, 650 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:42:42,463 INFO L231 Difference]: Finished difference. Result has 122 places, 113 transitions, 299 flow [2022-12-13 12:42:42,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=299, PETRI_PLACES=122, PETRI_TRANSITIONS=113} [2022-12-13 12:42:42,463 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -27 predicate places. [2022-12-13 12:42:42,463 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 113 transitions, 299 flow [2022-12-13 12:42:42,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 370.46153846153845) internal successors, (4816), 13 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:42,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:42,465 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:42,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:42:42,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:42:42,666 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:42,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash 750299132, now seen corresponding path program 2 times [2022-12-13 12:42:42,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:42,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090574131] [2022-12-13 12:42:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:42,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:42:42,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:42,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090574131] [2022-12-13 12:42:42,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090574131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:42,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:42,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:42,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991328919] [2022-12-13 12:42:42,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:42,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:42,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:42,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:42,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:43,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 801 [2022-12-13 12:42:43,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 113 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:43,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:43,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 801 [2022-12-13 12:42:43,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:44,621 INFO L130 PetriNetUnfolder]: 7380/14093 cut-off events. [2022-12-13 12:42:44,621 INFO L131 PetriNetUnfolder]: For 1732/1732 co-relation queries the response was YES. [2022-12-13 12:42:44,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26417 conditions, 14093 events. 7380/14093 cut-off events. For 1732/1732 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 125042 event pairs, 2209 based on Foata normal form. 0/12034 useless extension candidates. Maximal degree in co-relation 26407. Up to 4393 conditions per place. [2022-12-13 12:42:44,689 INFO L137 encePairwiseOnDemand]: 794/801 looper letters, 128 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2022-12-13 12:42:44,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 191 transitions, 737 flow [2022-12-13 12:42:44,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:44,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2318 transitions. [2022-12-13 12:42:44,692 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4823137744486059 [2022-12-13 12:42:44,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2318 transitions. [2022-12-13 12:42:44,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2318 transitions. [2022-12-13 12:42:44,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:44,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2318 transitions. [2022-12-13 12:42:44,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.3333333333333) internal successors, (2318), 6 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:44,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:44,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:44,699 INFO L175 Difference]: Start difference. First operand has 122 places, 113 transitions, 299 flow. Second operand 6 states and 2318 transitions. [2022-12-13 12:42:44,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 191 transitions, 737 flow [2022-12-13 12:42:44,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 191 transitions, 729 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 12:42:44,702 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 297 flow [2022-12-13 12:42:44,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2022-12-13 12:42:44,703 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2022-12-13 12:42:44,703 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 297 flow [2022-12-13 12:42:44,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:44,703 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:44,704 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:44,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:42:44,704 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:44,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:44,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1517928762, now seen corresponding path program 1 times [2022-12-13 12:42:44,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:44,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53187018] [2022-12-13 12:42:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:44,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:42:44,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:44,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53187018] [2022-12-13 12:42:44,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53187018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:44,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:44,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:44,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165851888] [2022-12-13 12:42:44,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:44,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:44,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:44,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:45,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 801 [2022-12-13 12:42:45,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 367.8333333333333) internal successors, (2207), 6 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:45,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:45,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 801 [2022-12-13 12:42:45,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:46,310 INFO L130 PetriNetUnfolder]: 6571/11394 cut-off events. [2022-12-13 12:42:46,310 INFO L131 PetriNetUnfolder]: For 2098/2374 co-relation queries the response was YES. [2022-12-13 12:42:46,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23458 conditions, 11394 events. 6571/11394 cut-off events. For 2098/2374 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 91621 event pairs, 1617 based on Foata normal form. 276/9947 useless extension candidates. Maximal degree in co-relation 23447. Up to 4232 conditions per place. [2022-12-13 12:42:46,361 INFO L137 encePairwiseOnDemand]: 794/801 looper letters, 117 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2022-12-13 12:42:46,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 181 transitions, 725 flow [2022-12-13 12:42:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2304 transitions. [2022-12-13 12:42:46,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4794007490636704 [2022-12-13 12:42:46,364 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2304 transitions. [2022-12-13 12:42:46,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2304 transitions. [2022-12-13 12:42:46,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:46,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2304 transitions. [2022-12-13 12:42:46,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 384.0) internal successors, (2304), 6 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:46,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:46,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:46,370 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 297 flow. Second operand 6 states and 2304 transitions. [2022-12-13 12:42:46,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 181 transitions, 725 flow [2022-12-13 12:42:46,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 181 transitions, 707 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:46,373 INFO L231 Difference]: Finished difference. Result has 122 places, 109 transitions, 293 flow [2022-12-13 12:42:46,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=293, PETRI_PLACES=122, PETRI_TRANSITIONS=109} [2022-12-13 12:42:46,373 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -27 predicate places. [2022-12-13 12:42:46,373 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 109 transitions, 293 flow [2022-12-13 12:42:46,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.8333333333333) internal successors, (2207), 6 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:46,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:46,374 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:46,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:42:46,374 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:46,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash -30847245, now seen corresponding path program 1 times [2022-12-13 12:42:46,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:46,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449972010] [2022-12-13 12:42:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:46,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:46,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:46,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449972010] [2022-12-13 12:42:46,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449972010] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:42:46,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645251188] [2022-12-13 12:42:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:46,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:42:46,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:42:46,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:42:46,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:42:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:46,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:42:46,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:46,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:42:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:46,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645251188] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 12:42:46,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 12:42:46,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-13 12:42:46,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391815647] [2022-12-13 12:42:46,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:46,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:42:46,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:46,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:42:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:42:46,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 801 [2022-12-13 12:42:46,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 109 transitions, 293 flow. Second operand has 5 states, 5 states have (on average 373.8) internal successors, (1869), 5 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:46,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:46,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 801 [2022-12-13 12:42:46,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:47,525 INFO L130 PetriNetUnfolder]: 4002/9078 cut-off events. [2022-12-13 12:42:47,525 INFO L131 PetriNetUnfolder]: For 1279/1456 co-relation queries the response was YES. [2022-12-13 12:42:47,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16889 conditions, 9078 events. 4002/9078 cut-off events. For 1279/1456 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 78696 event pairs, 1246 based on Foata normal form. 159/8275 useless extension candidates. Maximal degree in co-relation 16878. Up to 3161 conditions per place. [2022-12-13 12:42:47,556 INFO L137 encePairwiseOnDemand]: 795/801 looper letters, 61 selfloop transitions, 5 changer transitions 0/132 dead transitions. [2022-12-13 12:42:47,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 132 transitions, 487 flow [2022-12-13 12:42:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:42:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:42:47,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1915 transitions. [2022-12-13 12:42:47,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4781523096129838 [2022-12-13 12:42:47,559 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1915 transitions. [2022-12-13 12:42:47,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1915 transitions. [2022-12-13 12:42:47,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:47,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1915 transitions. [2022-12-13 12:42:47,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 383.0) internal successors, (1915), 5 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:47,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 801.0) internal successors, (4806), 6 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:47,564 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 801.0) internal successors, (4806), 6 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:47,564 INFO L175 Difference]: Start difference. First operand has 122 places, 109 transitions, 293 flow. Second operand 5 states and 1915 transitions. [2022-12-13 12:42:47,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 132 transitions, 487 flow [2022-12-13 12:42:47,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 475 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:47,569 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 306 flow [2022-12-13 12:42:47,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2022-12-13 12:42:47,570 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -26 predicate places. [2022-12-13 12:42:47,570 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 306 flow [2022-12-13 12:42:47,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 373.8) internal successors, (1869), 5 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:47,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:47,570 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:47,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 12:42:47,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:42:47,771 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:47,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:47,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2107724754, now seen corresponding path program 1 times [2022-12-13 12:42:47,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:47,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652392732] [2022-12-13 12:42:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:42:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:48,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652392732] [2022-12-13 12:42:48,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652392732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:48,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:48,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940520445] [2022-12-13 12:42:48,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:48,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:48,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:48,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:48,403 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 801 [2022-12-13 12:42:48,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 375.3333333333333) internal successors, (2252), 6 states have internal predecessors, (2252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:48,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:48,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 801 [2022-12-13 12:42:48,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:49,370 INFO L130 PetriNetUnfolder]: 3989/8506 cut-off events. [2022-12-13 12:42:49,370 INFO L131 PetriNetUnfolder]: For 2466/3002 co-relation queries the response was YES. [2022-12-13 12:42:49,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16928 conditions, 8506 events. 3989/8506 cut-off events. For 2466/3002 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 73433 event pairs, 2151 based on Foata normal form. 536/8183 useless extension candidates. Maximal degree in co-relation 16915. Up to 4365 conditions per place. [2022-12-13 12:42:49,408 INFO L137 encePairwiseOnDemand]: 796/801 looper letters, 107 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2022-12-13 12:42:49,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 173 transitions, 690 flow [2022-12-13 12:42:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2333 transitions. [2022-12-13 12:42:49,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4854348730753225 [2022-12-13 12:42:49,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2333 transitions. [2022-12-13 12:42:49,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2333 transitions. [2022-12-13 12:42:49,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:49,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2333 transitions. [2022-12-13 12:42:49,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 388.8333333333333) internal successors, (2333), 6 states have internal predecessors, (2333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:49,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:49,417 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:49,417 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 306 flow. Second operand 6 states and 2333 transitions. [2022-12-13 12:42:49,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 173 transitions, 690 flow [2022-12-13 12:42:49,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 173 transitions, 684 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 12:42:49,420 INFO L231 Difference]: Finished difference. Result has 124 places, 109 transitions, 306 flow [2022-12-13 12:42:49,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=124, PETRI_TRANSITIONS=109} [2022-12-13 12:42:49,421 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2022-12-13 12:42:49,421 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 109 transitions, 306 flow [2022-12-13 12:42:49,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.3333333333333) internal successors, (2252), 6 states have internal predecessors, (2252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:49,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:49,421 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:49,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:42:49,422 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 12:42:49,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1536846682, now seen corresponding path program 1 times [2022-12-13 12:42:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:49,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996403615] [2022-12-13 12:42:49,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:42:49,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:49,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996403615] [2022-12-13 12:42:49,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996403615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:49,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:49,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:49,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635273290] [2022-12-13 12:42:49,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:49,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:49,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:50,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 801 [2022-12-13 12:42:50,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 109 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:50,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:50,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 801 [2022-12-13 12:42:50,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:50,904 INFO L130 PetriNetUnfolder]: 3421/7922 cut-off events. [2022-12-13 12:42:50,904 INFO L131 PetriNetUnfolder]: For 2021/2525 co-relation queries the response was YES. [2022-12-13 12:42:50,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15427 conditions, 7922 events. 3421/7922 cut-off events. For 2021/2525 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 70656 event pairs, 2256 based on Foata normal form. 504/7626 useless extension candidates. Maximal degree in co-relation 15414. Up to 4630 conditions per place. [2022-12-13 12:42:50,926 INFO L137 encePairwiseOnDemand]: 796/801 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-12-13 12:42:50,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 144 transitions, 550 flow [2022-12-13 12:42:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2309 transitions. [2022-12-13 12:42:50,929 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48044111527257594 [2022-12-13 12:42:50,929 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2309 transitions. [2022-12-13 12:42:50,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2309 transitions. [2022-12-13 12:42:50,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:50,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2309 transitions. [2022-12-13 12:42:50,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 384.8333333333333) internal successors, (2309), 6 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:50,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:50,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 801.0) internal successors, (5607), 7 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:50,935 INFO L175 Difference]: Start difference. First operand has 124 places, 109 transitions, 306 flow. Second operand 6 states and 2309 transitions. [2022-12-13 12:42:50,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 144 transitions, 550 flow [2022-12-13 12:42:50,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 144 transitions, 543 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:50,938 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2022-12-13 12:42:50,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=801, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2022-12-13 12:42:50,938 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2022-12-13 12:42:50,938 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2022-12-13 12:42:50,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:50,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (81 of 82 remaining) [2022-12-13 12:42:50,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (80 of 82 remaining) [2022-12-13 12:42:50,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (79 of 82 remaining) [2022-12-13 12:42:50,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (78 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (77 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (76 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (75 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (74 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (73 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (72 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (71 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (70 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (69 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (68 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (66 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (65 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 82 remaining) [2022-12-13 12:42:50,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (62 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (57 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (56 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (55 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (54 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (53 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (52 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (51 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 82 remaining) [2022-12-13 12:42:50,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (44 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (43 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (41 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (40 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (39 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (38 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (37 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (36 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (34 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 82 remaining) [2022-12-13 12:42:50,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (21 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 82 remaining) [2022-12-13 12:42:50,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (14 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (13 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (12 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (11 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (7 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (6 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (5 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (4 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (2 of 82 remaining) [2022-12-13 12:42:50,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (1 of 82 remaining) [2022-12-13 12:42:50,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (0 of 82 remaining) [2022-12-13 12:42:50,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:42:50,946 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:50,950 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:42:50,950 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:42:50,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:42:50 BasicIcfg [2022-12-13 12:42:50,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:42:50,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:42:50,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:42:50,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:42:50,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:21" (3/4) ... [2022-12-13 12:42:50,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:42:50,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 12:42:50,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 12:42:50,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 12:42:50,963 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-12-13 12:42:50,963 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 12:42:50,963 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 12:42:50,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:42:50,999 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:42:50,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:42:51,000 INFO L158 Benchmark]: Toolchain (without parser) took 30744.93ms. Allocated memory was 172.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 135.7MB in the beginning and 692.5MB in the end (delta: -556.8MB). Peak memory consumption was 944.5MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,000 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory was 143.5MB in the beginning and 143.4MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:42:51,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.36ms. Allocated memory is still 172.0MB. Free memory was 134.8MB in the beginning and 120.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.61ms. Allocated memory is still 172.0MB. Free memory was 120.9MB in the beginning and 116.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,001 INFO L158 Benchmark]: Boogie Preprocessor took 33.85ms. Allocated memory is still 172.0MB. Free memory was 116.8MB in the beginning and 113.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,001 INFO L158 Benchmark]: RCFGBuilder took 855.50ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 113.8MB in the beginning and 156.8MB in the end (delta: -43.0MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,001 INFO L158 Benchmark]: TraceAbstraction took 29561.27ms. Allocated memory was 207.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 155.8MB in the beginning and 697.8MB in the end (delta: -542.0MB). Peak memory consumption was 921.8MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,002 INFO L158 Benchmark]: Witness Printer took 46.64ms. Allocated memory is still 1.7GB. Free memory was 696.7MB in the beginning and 692.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:42:51,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory was 143.5MB in the beginning and 143.4MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.36ms. Allocated memory is still 172.0MB. Free memory was 134.8MB in the beginning and 120.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.61ms. Allocated memory is still 172.0MB. Free memory was 120.9MB in the beginning and 116.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.85ms. Allocated memory is still 172.0MB. Free memory was 116.8MB in the beginning and 113.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 855.50ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 113.8MB in the beginning and 156.8MB in the end (delta: -43.0MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. * TraceAbstraction took 29561.27ms. Allocated memory was 207.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 155.8MB in the beginning and 697.8MB in the end (delta: -542.0MB). Peak memory consumption was 921.8MB. Max. memory is 16.1GB. * Witness Printer took 46.64ms. Allocated memory is still 1.7GB. Free memory was 696.7MB in the beginning and 692.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3s, 390 PlacesBefore, 149 PlacesAfterwards, 405 TransitionsBefore, 153 TransitionsAfterwards, 29394 CoEnabledTransitionPairs, 8 FixpointIterations, 204 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 28 ConcurrentYvCompositions, 11 ChoiceCompositions, 373 TotalNumberOfCompositions, 201357 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44277, independent: 42331, independent conditional: 0, independent unconditional: 42331, dependent: 1946, dependent conditional: 0, dependent unconditional: 1946, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14139, independent: 13920, independent conditional: 0, independent unconditional: 13920, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44277, independent: 28411, independent conditional: 0, independent unconditional: 28411, dependent: 1727, dependent conditional: 0, dependent unconditional: 1727, unknown: 14139, unknown conditional: 0, unknown unconditional: 14139] , Statistics on independence cache: Total cache size (in pairs): 2208, Positive cache size: 2075, Positive conditional cache size: 0, Positive unconditional cache size: 2075, Negative cache size: 133, Negative conditional cache size: 0, Negative unconditional cache size: 133, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 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 - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: 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, 571 locations, 82 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: 29.4s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3108 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2053 mSDsluCounter, 557 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 525 mSDsCounter, 1062 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6283 IncrementalHoareTripleChecker+Invalid, 7345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1062 mSolverCounterUnsat, 32 mSDtfsCounter, 6283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=0, InterpolantAutomatonStates: 67, 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 303 NumberOfCodeBlocks, 303 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103 SizeOfPredicates, 9 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 14/19 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 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 12:42:51,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54f838bf-484e-4f1a-af2c-5eb75f88e2c3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE