./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/security.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 417dec4be084b2867b601c43d125afd61f7d3912bd17641ca10c0f094ab6abe0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:04:42,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:04:42,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:04:42,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:04:42,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:04:42,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:04:42,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:04:42,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:04:42,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:04:42,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:04:42,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:04:42,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:04:42,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:04:42,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:04:42,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:04:42,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:04:42,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:04:42,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:04:42,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:04:42,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:04:42,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:04:42,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:04:42,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:04:42,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:04:42,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:04:42,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:04:42,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:04:42,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:04:42,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:04:42,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:04:42,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:04:42,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:04:42,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:04:42,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:04:42,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:04:42,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:04:42,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:04:42,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:04:42,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:04:42,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:04:42,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:04:42,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:04:42,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:04:42,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:04:42,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:04:42,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:04:42,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:04:42,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:04:42,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:04:42,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:04:42,503 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:04:42,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:04:42,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:04:42,505 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:04:42,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:04:42,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:04:42,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:04:42,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:04:42,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:04:42,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:04:42,507 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:04:42,507 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:04:42,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:04:42,508 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:04:42,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:04:42,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:04:42,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:04:42,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:04:42,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:42,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:04:42,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:04:42,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:04:42,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:04:42,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:04:42,511 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:04:42,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:04:42,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:04:42,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 417dec4be084b2867b601c43d125afd61f7d3912bd17641ca10c0f094ab6abe0 [2022-11-20 12:04:42,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:04:42,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:04:42,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:04:42,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:04:42,883 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:04:42,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/security.wvr.c [2022-11-20 12:04:46,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:04:46,448 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:04:46,448 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/sv-benchmarks/c/weaver/security.wvr.c [2022-11-20 12:04:46,456 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/data/92b3a400b/2e9e2278853248d081dc37f5fce3bb4e/FLAGe5840c965 [2022-11-20 12:04:46,477 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/data/92b3a400b/2e9e2278853248d081dc37f5fce3bb4e [2022-11-20 12:04:46,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:04:46,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:04:46,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:46,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:04:46,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:04:46,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f4a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46, skipping insertion in model container [2022-11-20 12:04:46,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:04:46,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:04:46,754 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_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/sv-benchmarks/c/weaver/security.wvr.c[1931,1944] [2022-11-20 12:04:46,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:46,771 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:04:46,814 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_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/sv-benchmarks/c/weaver/security.wvr.c[1931,1944] [2022-11-20 12:04:46,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:46,836 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:04:46,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46 WrapperNode [2022-11-20 12:04:46,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:46,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:04:46,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:04:46,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:04:46,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,908 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-11-20 12:04:46,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:04:46,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:04:46,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:04:46,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:04:46,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:04:46,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:04:46,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:04:46,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:04:46,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (1/1) ... [2022-11-20 12:04:46,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:47,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:04:47,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:04:47,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:04:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:04:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:04:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:04:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:04:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:04:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:04:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:04:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:04:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:04:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:04:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:04:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:04:47,082 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:04:47,206 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:04:47,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:04:47,684 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:04:47,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:04:47,699 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:04:47,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:47 BoogieIcfgContainer [2022-11-20 12:04:47,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:04:47,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:04:47,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:04:47,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:04:47,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:04:46" (1/3) ... [2022-11-20 12:04:47,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c20684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:47, skipping insertion in model container [2022-11-20 12:04:47,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:46" (2/3) ... [2022-11-20 12:04:47,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c20684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:47, skipping insertion in model container [2022-11-20 12:04:47,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:47" (3/3) ... [2022-11-20 12:04:47,716 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2022-11-20 12:04:47,725 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:04:47,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:04:47,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-20 12:04:47,736 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:04:47,880 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:04:47,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 161 transitions, 338 flow [2022-11-20 12:04:48,043 INFO L130 PetriNetUnfolder]: 3/159 cut-off events. [2022-11-20 12:04:48,044 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:04:48,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 3/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 246 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-20 12:04:48,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 161 transitions, 338 flow [2022-11-20 12:04:48,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 141 transitions, 294 flow [2022-11-20 12:04:48,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:04:48,075 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;@7c30cc7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:04:48,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-20 12:04:48,088 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 12:04:48,088 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:04:48,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:48,089 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:48,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:48,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1389607255, now seen corresponding path program 1 times [2022-11-20 12:04:48,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:48,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536115695] [2022-11-20 12:04:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:48,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:48,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:48,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536115695] [2022-11-20 12:04:48,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536115695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:48,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:48,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:48,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353614696] [2022-11-20 12:04:48,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:48,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:48,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:48,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 161 [2022-11-20 12:04:48,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 141 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:48,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 161 [2022-11-20 12:04:48,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:48,704 INFO L130 PetriNetUnfolder]: 18/263 cut-off events. [2022-11-20 12:04:48,704 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-20 12:04:48,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 263 events. 18/263 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 866 event pairs, 15 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 233. Up to 44 conditions per place. [2022-11-20 12:04:48,712 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 13 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-11-20 12:04:48,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 140 transitions, 322 flow [2022-11-20 12:04:48,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2022-11-20 12:04:48,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9213250517598344 [2022-11-20 12:04:48,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2022-11-20 12:04:48,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2022-11-20 12:04:48,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:48,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2022-11-20 12:04:48,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,766 INFO L175 Difference]: Start difference. First operand has 146 places, 141 transitions, 294 flow. Second operand 3 states and 445 transitions. [2022-11-20 12:04:48,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 140 transitions, 322 flow [2022-11-20 12:04:48,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 140 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:48,786 INFO L231 Difference]: Finished difference. Result has 143 places, 140 transitions, 288 flow [2022-11-20 12:04:48,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=143, PETRI_TRANSITIONS=140} [2022-11-20 12:04:48,793 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2022-11-20 12:04:48,794 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 140 transitions, 288 flow [2022-11-20 12:04:48,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,795 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:48,795 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:48,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:04:48,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1839248274, now seen corresponding path program 1 times [2022-11-20 12:04:48,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:48,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359102143] [2022-11-20 12:04:48,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:48,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:48,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:48,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359102143] [2022-11-20 12:04:48,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359102143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:48,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:48,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443324462] [2022-11-20 12:04:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:48,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:48,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:48,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:48,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:48,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-20 12:04:48,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 140 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:48,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-20 12:04:48,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:48,953 INFO L130 PetriNetUnfolder]: 10/183 cut-off events. [2022-11-20 12:04:48,953 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:04:48,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 183 events. 10/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 545 event pairs, 5 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 190. Up to 20 conditions per place. [2022-11-20 12:04:48,956 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 10 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-11-20 12:04:48,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 140 transitions, 313 flow [2022-11-20 12:04:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:48,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-20 12:04:48,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-20 12:04:48,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-20 12:04:48,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-20 12:04:48,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:48,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-20 12:04:48,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,965 INFO L175 Difference]: Start difference. First operand has 143 places, 140 transitions, 288 flow. Second operand 3 states and 454 transitions. [2022-11-20 12:04:48,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 140 transitions, 313 flow [2022-11-20 12:04:48,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:48,970 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 286 flow [2022-11-20 12:04:48,970 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2022-11-20 12:04:48,971 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-20 12:04:48,971 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 286 flow [2022-11-20 12:04:48,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:48,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:48,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:48,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:04:48,973 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:48,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1747204638, now seen corresponding path program 1 times [2022-11-20 12:04:48,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:48,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107666459] [2022-11-20 12:04:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:48,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:49,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:49,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107666459] [2022-11-20 12:04:49,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107666459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:49,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:49,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:49,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560479561] [2022-11-20 12:04:49,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:49,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:49,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:49,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:49,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-20 12:04:49,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:49,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-20 12:04:49,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:49,098 INFO L130 PetriNetUnfolder]: 5/221 cut-off events. [2022-11-20 12:04:49,098 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 12:04:49,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 221 events. 5/221 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 704 event pairs, 2 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 132. Up to 11 conditions per place. [2022-11-20 12:04:49,100 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 10 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2022-11-20 12:04:49,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 315 flow [2022-11-20 12:04:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2022-11-20 12:04:49,103 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-20 12:04:49,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2022-11-20 12:04:49,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2022-11-20 12:04:49,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:49,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2022-11-20 12:04:49,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,107 INFO L175 Difference]: Start difference. First operand has 142 places, 139 transitions, 286 flow. Second operand 3 states and 459 transitions. [2022-11-20 12:04:49,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 315 flow [2022-11-20 12:04:49,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 141 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:49,111 INFO L231 Difference]: Finished difference. Result has 141 places, 138 transitions, 282 flow [2022-11-20 12:04:49,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=141, PETRI_TRANSITIONS=138} [2022-11-20 12:04:49,112 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2022-11-20 12:04:49,112 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 282 flow [2022-11-20 12:04:49,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:49,113 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:49,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:04:49,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:49,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:49,114 INFO L85 PathProgramCache]: Analyzing trace with hash 722610345, now seen corresponding path program 1 times [2022-11-20 12:04:49,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:49,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254065576] [2022-11-20 12:04:49,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:49,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:49,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:49,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254065576] [2022-11-20 12:04:49,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254065576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:49,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:49,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723990775] [2022-11-20 12:04:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:49,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:49,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:49,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:49,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:49,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-20 12:04:49,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:49,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-20 12:04:49,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:49,259 INFO L130 PetriNetUnfolder]: 17/271 cut-off events. [2022-11-20 12:04:49,260 INFO L131 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2022-11-20 12:04:49,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 271 events. 17/271 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 953 event pairs, 4 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 208. Up to 32 conditions per place. [2022-11-20 12:04:49,264 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 10 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2022-11-20 12:04:49,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 307 flow [2022-11-20 12:04:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-20 12:04:49,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-20 12:04:49,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-20 12:04:49,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-20 12:04:49,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:49,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-20 12:04:49,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,276 INFO L175 Difference]: Start difference. First operand has 141 places, 138 transitions, 282 flow. Second operand 3 states and 454 transitions. [2022-11-20 12:04:49,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 307 flow [2022-11-20 12:04:49,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:49,304 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 283 flow [2022-11-20 12:04:49,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2022-11-20 12:04:49,306 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2022-11-20 12:04:49,306 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 283 flow [2022-11-20 12:04:49,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:49,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:49,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:04:49,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 238983300, now seen corresponding path program 1 times [2022-11-20 12:04:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:49,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370639354] [2022-11-20 12:04:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:49,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:49,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370639354] [2022-11-20 12:04:49,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370639354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:49,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:49,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:49,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149817527] [2022-11-20 12:04:49,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:49,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:49,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:49,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:49,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:49,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-20 12:04:49,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:49,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-20 12:04:49,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:49,527 INFO L130 PetriNetUnfolder]: 16/309 cut-off events. [2022-11-20 12:04:49,527 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:04:49,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 309 events. 16/309 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1365 event pairs, 11 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 246. Up to 40 conditions per place. [2022-11-20 12:04:49,530 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 13 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-11-20 12:04:49,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 137 transitions, 314 flow [2022-11-20 12:04:49,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:49,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2022-11-20 12:04:49,533 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2022-11-20 12:04:49,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2022-11-20 12:04:49,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2022-11-20 12:04:49,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:49,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2022-11-20 12:04:49,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,537 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 283 flow. Second operand 3 states and 448 transitions. [2022-11-20 12:04:49,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 137 transitions, 314 flow [2022-11-20 12:04:49,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:49,540 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 281 flow [2022-11-20 12:04:49,541 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=140, PETRI_TRANSITIONS=136} [2022-11-20 12:04:49,542 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -6 predicate places. [2022-11-20 12:04:49,542 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 281 flow [2022-11-20 12:04:49,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:49,543 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:49,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:04:49,543 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:49,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:49,544 INFO L85 PathProgramCache]: Analyzing trace with hash 395550536, now seen corresponding path program 1 times [2022-11-20 12:04:49,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:49,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574317868] [2022-11-20 12:04:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:49,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:49,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:49,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:49,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574317868] [2022-11-20 12:04:49,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574317868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:49,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:49,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627778740] [2022-11-20 12:04:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:49,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:49,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:49,609 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-20 12:04:49,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 136 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:49,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-20 12:04:49,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:49,694 INFO L130 PetriNetUnfolder]: 15/306 cut-off events. [2022-11-20 12:04:49,694 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 12:04:49,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 306 events. 15/306 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1333 event pairs, 10 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 239. Up to 37 conditions per place. [2022-11-20 12:04:49,698 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 12 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2022-11-20 12:04:49,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 136 transitions, 310 flow [2022-11-20 12:04:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:49,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-11-20 12:04:49,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254658385093167 [2022-11-20 12:04:49,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-11-20 12:04:49,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-11-20 12:04:49,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:49,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-11-20 12:04:49,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,705 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 281 flow. Second operand 3 states and 447 transitions. [2022-11-20 12:04:49,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 136 transitions, 310 flow [2022-11-20 12:04:49,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 136 transitions, 306 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:49,708 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 279 flow [2022-11-20 12:04:49,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2022-11-20 12:04:49,711 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -7 predicate places. [2022-11-20 12:04:49,712 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 279 flow [2022-11-20 12:04:49,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:49,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:49,714 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:04:49,715 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:49,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1084068079, now seen corresponding path program 1 times [2022-11-20 12:04:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813113411] [2022-11-20 12:04:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:50,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:50,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813113411] [2022-11-20 12:04:50,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813113411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:50,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:50,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:50,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545548210] [2022-11-20 12:04:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:50,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:50,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:50,321 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2022-11-20 12:04:50,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:50,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2022-11-20 12:04:50,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:50,438 INFO L130 PetriNetUnfolder]: 1/164 cut-off events. [2022-11-20 12:04:50,439 INFO L131 PetriNetUnfolder]: For 2/16 co-relation queries the response was YES. [2022-11-20 12:04:50,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 164 events. 1/164 cut-off events. For 2/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 347 event pairs, 0 based on Foata normal form. 8/154 useless extension candidates. Maximal degree in co-relation 153. Up to 18 conditions per place. [2022-11-20 12:04:50,441 INFO L137 encePairwiseOnDemand]: 156/161 looper letters, 15 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2022-11-20 12:04:50,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 134 transitions, 315 flow [2022-11-20 12:04:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:50,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 842 transitions. [2022-11-20 12:04:50,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8716356107660456 [2022-11-20 12:04:50,444 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 842 transitions. [2022-11-20 12:04:50,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 842 transitions. [2022-11-20 12:04:50,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:50,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 842 transitions. [2022-11-20 12:04:50,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.33333333333334) internal successors, (842), 6 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,449 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,450 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 279 flow. Second operand 6 states and 842 transitions. [2022-11-20 12:04:50,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 134 transitions, 315 flow [2022-11-20 12:04:50,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 134 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:50,453 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 281 flow [2022-11-20 12:04:50,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2022-11-20 12:04:50,454 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2022-11-20 12:04:50,454 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 281 flow [2022-11-20 12:04:50,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:50,455 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:04:50,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1503907074, now seen corresponding path program 1 times [2022-11-20 12:04:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:50,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43727118] [2022-11-20 12:04:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:50,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:50,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43727118] [2022-11-20 12:04:50,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43727118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:50,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:50,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:50,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70820898] [2022-11-20 12:04:50,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:50,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:50,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:50,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:50,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 161 [2022-11-20 12:04:50,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:50,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 161 [2022-11-20 12:04:50,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:50,568 INFO L130 PetriNetUnfolder]: 11/294 cut-off events. [2022-11-20 12:04:50,568 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:04:50,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 294 events. 11/294 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1200 event pairs, 4 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place. [2022-11-20 12:04:50,572 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 10 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2022-11-20 12:04:50,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 134 transitions, 304 flow [2022-11-20 12:04:50,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:50,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-11-20 12:04:50,574 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9316770186335404 [2022-11-20 12:04:50,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-11-20 12:04:50,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-11-20 12:04:50,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:50,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-11-20 12:04:50,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,578 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 281 flow. Second operand 3 states and 450 transitions. [2022-11-20 12:04:50,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 134 transitions, 304 flow [2022-11-20 12:04:50,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 134 transitions, 297 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:50,583 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 274 flow [2022-11-20 12:04:50,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2022-11-20 12:04:50,587 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-20 12:04:50,587 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 274 flow [2022-11-20 12:04:50,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,588 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:50,588 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:50,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:04:50,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:50,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:50,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1770179986, now seen corresponding path program 1 times [2022-11-20 12:04:50,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:50,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832281238] [2022-11-20 12:04:50,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:50,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:50,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:50,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832281238] [2022-11-20 12:04:50,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832281238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:50,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:50,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:50,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440359325] [2022-11-20 12:04:50,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:50,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:50,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:50,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-20 12:04:50,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:50,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-20 12:04:50,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:50,713 INFO L130 PetriNetUnfolder]: 8/311 cut-off events. [2022-11-20 12:04:50,713 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-20 12:04:50,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 311 events. 8/311 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1167 event pairs, 6 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 296. Up to 17 conditions per place. [2022-11-20 12:04:50,717 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 9 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2022-11-20 12:04:50,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 134 transitions, 298 flow [2022-11-20 12:04:50,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:50,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:50,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2022-11-20 12:04:50,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2022-11-20 12:04:50,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2022-11-20 12:04:50,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2022-11-20 12:04:50,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:50,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2022-11-20 12:04:50,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,723 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 274 flow. Second operand 3 states and 458 transitions. [2022-11-20 12:04:50,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 134 transitions, 298 flow [2022-11-20 12:04:50,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 134 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:50,728 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 273 flow [2022-11-20 12:04:50,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2022-11-20 12:04:50,729 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-20 12:04:50,729 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 273 flow [2022-11-20 12:04:50,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:50,731 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:50,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:04:50,732 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2145674176, now seen corresponding path program 1 times [2022-11-20 12:04:50,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:50,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591297672] [2022-11-20 12:04:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:50,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:50,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591297672] [2022-11-20 12:04:50,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591297672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:50,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:50,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:50,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304733030] [2022-11-20 12:04:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:50,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:50,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:50,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:50,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:50,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 161 [2022-11-20 12:04:50,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:50,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 161 [2022-11-20 12:04:50,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:50,878 INFO L130 PetriNetUnfolder]: 28/417 cut-off events. [2022-11-20 12:04:50,879 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 12:04:50,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 417 events. 28/417 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2153 event pairs, 16 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 415. Up to 70 conditions per place. [2022-11-20 12:04:50,881 INFO L137 encePairwiseOnDemand]: 157/161 looper letters, 11 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2022-11-20 12:04:50,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 133 transitions, 302 flow [2022-11-20 12:04:50,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-20 12:04:50,884 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.937888198757764 [2022-11-20 12:04:50,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-20 12:04:50,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-20 12:04:50,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:50,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-20 12:04:50,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,888 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 273 flow. Second operand 3 states and 453 transitions. [2022-11-20 12:04:50,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 133 transitions, 302 flow [2022-11-20 12:04:50,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 133 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:50,891 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 282 flow [2022-11-20 12:04:50,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2022-11-20 12:04:50,893 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-20 12:04:50,893 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 282 flow [2022-11-20 12:04:50,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:50,894 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:50,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:04:50,894 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash 306346260, now seen corresponding path program 1 times [2022-11-20 12:04:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:50,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008589754] [2022-11-20 12:04:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:50,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:50,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:50,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008589754] [2022-11-20 12:04:50,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008589754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:50,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:50,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014588238] [2022-11-20 12:04:50,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:50,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:50,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:50,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:50,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-20 12:04:50,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:50,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:50,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-20 12:04:50,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:51,032 INFO L130 PetriNetUnfolder]: 30/338 cut-off events. [2022-11-20 12:04:51,032 INFO L131 PetriNetUnfolder]: For 32/34 co-relation queries the response was YES. [2022-11-20 12:04:51,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 338 events. 30/338 cut-off events. For 32/34 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1744 event pairs, 16 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 389. Up to 64 conditions per place. [2022-11-20 12:04:51,035 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 13 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2022-11-20 12:04:51,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 132 transitions, 313 flow [2022-11-20 12:04:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:51,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2022-11-20 12:04:51,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2022-11-20 12:04:51,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2022-11-20 12:04:51,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2022-11-20 12:04:51,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:51,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2022-11-20 12:04:51,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,042 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 282 flow. Second operand 3 states and 448 transitions. [2022-11-20 12:04:51,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 132 transitions, 313 flow [2022-11-20 12:04:51,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 132 transitions, 313 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:04:51,045 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 284 flow [2022-11-20 12:04:51,046 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2022-11-20 12:04:51,046 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -7 predicate places. [2022-11-20 12:04:51,047 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 284 flow [2022-11-20 12:04:51,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:51,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:51,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:04:51,048 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:51,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash 706846904, now seen corresponding path program 1 times [2022-11-20 12:04:51,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:51,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332024461] [2022-11-20 12:04:51,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:51,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:51,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:51,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332024461] [2022-11-20 12:04:51,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332024461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:51,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:51,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:51,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932568867] [2022-11-20 12:04:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:51,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:51,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-20 12:04:51,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:51,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-20 12:04:51,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:51,180 INFO L130 PetriNetUnfolder]: 28/333 cut-off events. [2022-11-20 12:04:51,180 INFO L131 PetriNetUnfolder]: For 33/35 co-relation queries the response was YES. [2022-11-20 12:04:51,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 333 events. 28/333 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1601 event pairs, 14 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 385. Up to 59 conditions per place. [2022-11-20 12:04:51,183 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 12 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2022-11-20 12:04:51,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 131 transitions, 313 flow [2022-11-20 12:04:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-11-20 12:04:51,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254658385093167 [2022-11-20 12:04:51,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-11-20 12:04:51,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-11-20 12:04:51,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:51,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-11-20 12:04:51,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,192 INFO L175 Difference]: Start difference. First operand has 139 places, 131 transitions, 284 flow. Second operand 3 states and 447 transitions. [2022-11-20 12:04:51,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 131 transitions, 313 flow [2022-11-20 12:04:51,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 131 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:51,196 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 282 flow [2022-11-20 12:04:51,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2022-11-20 12:04:51,197 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-20 12:04:51,198 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 282 flow [2022-11-20 12:04:51,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:51,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:51,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:04:51,199 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:51,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:51,200 INFO L85 PathProgramCache]: Analyzing trace with hash -443654219, now seen corresponding path program 1 times [2022-11-20 12:04:51,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:51,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885182306] [2022-11-20 12:04:51,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:51,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:51,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:51,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885182306] [2022-11-20 12:04:51,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885182306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:51,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:51,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:51,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058368454] [2022-11-20 12:04:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:51,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:51,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:51,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:51,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:51,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 161 [2022-11-20 12:04:51,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:51,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 161 [2022-11-20 12:04:51,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:51,324 INFO L130 PetriNetUnfolder]: 20/301 cut-off events. [2022-11-20 12:04:51,324 INFO L131 PetriNetUnfolder]: For 25/27 co-relation queries the response was YES. [2022-11-20 12:04:51,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 301 events. 20/301 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1330 event pairs, 8 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 333. Up to 25 conditions per place. [2022-11-20 12:04:51,327 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 10 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2022-11-20 12:04:51,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 305 flow [2022-11-20 12:04:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-11-20 12:04:51,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9316770186335404 [2022-11-20 12:04:51,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-11-20 12:04:51,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-11-20 12:04:51,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:51,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-11-20 12:04:51,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,338 INFO L175 Difference]: Start difference. First operand has 138 places, 130 transitions, 282 flow. Second operand 3 states and 450 transitions. [2022-11-20 12:04:51,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 305 flow [2022-11-20 12:04:51,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 130 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:51,343 INFO L231 Difference]: Finished difference. Result has 137 places, 129 transitions, 278 flow [2022-11-20 12:04:51,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=137, PETRI_TRANSITIONS=129} [2022-11-20 12:04:51,345 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -9 predicate places. [2022-11-20 12:04:51,345 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 129 transitions, 278 flow [2022-11-20 12:04:51,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:51,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:51,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:04:51,347 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:51,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1792271741, now seen corresponding path program 1 times [2022-11-20 12:04:51,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:51,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355372575] [2022-11-20 12:04:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:51,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:51,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:51,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355372575] [2022-11-20 12:04:51,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355372575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:51,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:51,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:51,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510810558] [2022-11-20 12:04:51,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:51,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:51,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:51,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:51,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:51,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-20 12:04:51,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 129 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:51,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-20 12:04:51,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:51,468 INFO L130 PetriNetUnfolder]: 12/349 cut-off events. [2022-11-20 12:04:51,468 INFO L131 PetriNetUnfolder]: For 6/28 co-relation queries the response was YES. [2022-11-20 12:04:51,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 349 events. 12/349 cut-off events. For 6/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1537 event pairs, 4 based on Foata normal form. 6/329 useless extension candidates. Maximal degree in co-relation 256. Up to 33 conditions per place. [2022-11-20 12:04:51,471 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 10 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2022-11-20 12:04:51,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 129 transitions, 303 flow [2022-11-20 12:04:51,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:51,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-20 12:04:51,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-20 12:04:51,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-20 12:04:51,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-20 12:04:51,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:51,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-20 12:04:51,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,478 INFO L175 Difference]: Start difference. First operand has 137 places, 129 transitions, 278 flow. Second operand 3 states and 454 transitions. [2022-11-20 12:04:51,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 129 transitions, 303 flow [2022-11-20 12:04:51,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 129 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:51,487 INFO L231 Difference]: Finished difference. Result has 137 places, 128 transitions, 279 flow [2022-11-20 12:04:51,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=137, PETRI_TRANSITIONS=128} [2022-11-20 12:04:51,488 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -9 predicate places. [2022-11-20 12:04:51,488 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 128 transitions, 279 flow [2022-11-20 12:04:51,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:51,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:51,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:04:51,490 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:51,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:51,490 INFO L85 PathProgramCache]: Analyzing trace with hash -832141158, now seen corresponding path program 1 times [2022-11-20 12:04:51,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:51,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428446507] [2022-11-20 12:04:51,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:51,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:51,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:51,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428446507] [2022-11-20 12:04:51,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428446507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:51,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:51,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:51,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011173886] [2022-11-20 12:04:51,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:51,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:51,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:51,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:51,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-20 12:04:51,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 128 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:51,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-20 12:04:51,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:51,592 INFO L130 PetriNetUnfolder]: 20/265 cut-off events. [2022-11-20 12:04:51,592 INFO L131 PetriNetUnfolder]: For 22/27 co-relation queries the response was YES. [2022-11-20 12:04:51,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 265 events. 20/265 cut-off events. For 22/27 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1045 event pairs, 8 based on Foata normal form. 1/251 useless extension candidates. Maximal degree in co-relation 317. Up to 45 conditions per place. [2022-11-20 12:04:51,594 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 9 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2022-11-20 12:04:51,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 128 transitions, 302 flow [2022-11-20 12:04:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:51,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-20 12:04:51,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.937888198757764 [2022-11-20 12:04:51,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-20 12:04:51,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-20 12:04:51,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:51,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-20 12:04:51,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,601 INFO L175 Difference]: Start difference. First operand has 137 places, 128 transitions, 279 flow. Second operand 3 states and 453 transitions. [2022-11-20 12:04:51,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 128 transitions, 302 flow [2022-11-20 12:04:51,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 128 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:51,604 INFO L231 Difference]: Finished difference. Result has 136 places, 127 transitions, 277 flow [2022-11-20 12:04:51,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=127} [2022-11-20 12:04:51,606 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -10 predicate places. [2022-11-20 12:04:51,606 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 127 transitions, 277 flow [2022-11-20 12:04:51,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:51,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:51,607 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:51,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:04:51,607 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash 749078325, now seen corresponding path program 1 times [2022-11-20 12:04:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:51,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532091467] [2022-11-20 12:04:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:51,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:52,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:52,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532091467] [2022-11-20 12:04:52,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532091467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:52,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:52,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140068047] [2022-11-20 12:04:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:52,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:52,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:52,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2022-11-20 12:04:52,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 127 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:52,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2022-11-20 12:04:52,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:52,154 INFO L130 PetriNetUnfolder]: 4/215 cut-off events. [2022-11-20 12:04:52,155 INFO L131 PetriNetUnfolder]: For 4/42 co-relation queries the response was YES. [2022-11-20 12:04:52,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 215 events. 4/215 cut-off events. For 4/42 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 661 event pairs, 0 based on Foata normal form. 8/213 useless extension candidates. Maximal degree in co-relation 224. Up to 15 conditions per place. [2022-11-20 12:04:52,156 INFO L137 encePairwiseOnDemand]: 156/161 looper letters, 14 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2022-11-20 12:04:52,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 126 transitions, 311 flow [2022-11-20 12:04:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 841 transitions. [2022-11-20 12:04:52,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.870600414078675 [2022-11-20 12:04:52,159 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 841 transitions. [2022-11-20 12:04:52,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 841 transitions. [2022-11-20 12:04:52,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:52,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 841 transitions. [2022-11-20 12:04:52,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,165 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,166 INFO L175 Difference]: Start difference. First operand has 136 places, 127 transitions, 277 flow. Second operand 6 states and 841 transitions. [2022-11-20 12:04:52,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 126 transitions, 311 flow [2022-11-20 12:04:52,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 126 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:52,169 INFO L231 Difference]: Finished difference. Result has 138 places, 126 transitions, 279 flow [2022-11-20 12:04:52,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=138, PETRI_TRANSITIONS=126} [2022-11-20 12:04:52,171 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-20 12:04:52,173 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 126 transitions, 279 flow [2022-11-20 12:04:52,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:52,174 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:52,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:04:52,174 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:52,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash 483235654, now seen corresponding path program 1 times [2022-11-20 12:04:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:52,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504153466] [2022-11-20 12:04:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:52,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:52,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:52,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:52,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504153466] [2022-11-20 12:04:52,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504153466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:52,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:52,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:52,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762351159] [2022-11-20 12:04:52,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:52,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:52,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:52,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:52,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:52,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-20 12:04:52,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 126 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:52,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-20 12:04:52,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:52,288 INFO L130 PetriNetUnfolder]: 8/327 cut-off events. [2022-11-20 12:04:52,288 INFO L131 PetriNetUnfolder]: For 6/16 co-relation queries the response was YES. [2022-11-20 12:04:52,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 327 events. 8/327 cut-off events. For 6/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1398 event pairs, 4 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 350. Up to 21 conditions per place. [2022-11-20 12:04:52,290 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 7 selfloop transitions, 1 changer transitions 0/125 dead transitions. [2022-11-20 12:04:52,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 125 transitions, 293 flow [2022-11-20 12:04:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2022-11-20 12:04:52,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9440993788819876 [2022-11-20 12:04:52,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2022-11-20 12:04:52,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2022-11-20 12:04:52,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:52,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2022-11-20 12:04:52,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,296 INFO L175 Difference]: Start difference. First operand has 138 places, 126 transitions, 279 flow. Second operand 3 states and 456 transitions. [2022-11-20 12:04:52,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 125 transitions, 293 flow [2022-11-20 12:04:52,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 125 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:52,299 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 272 flow [2022-11-20 12:04:52,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2022-11-20 12:04:52,300 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -11 predicate places. [2022-11-20 12:04:52,301 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 272 flow [2022-11-20 12:04:52,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:52,301 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:52,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:04:52,302 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 12:04:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash 146871224, now seen corresponding path program 1 times [2022-11-20 12:04:52,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:52,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798258543] [2022-11-20 12:04:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:52,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:52,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:52,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798258543] [2022-11-20 12:04:52,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798258543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:52,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:52,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:52,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069841692] [2022-11-20 12:04:52,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:52,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:52,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:52,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:52,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-20 12:04:52,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:52,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-20 12:04:52,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:52,432 INFO L130 PetriNetUnfolder]: 12/256 cut-off events. [2022-11-20 12:04:52,432 INFO L131 PetriNetUnfolder]: For 14/19 co-relation queries the response was YES. [2022-11-20 12:04:52,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 256 events. 12/256 cut-off events. For 14/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 920 event pairs, 8 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 310. Up to 37 conditions per place. [2022-11-20 12:04:52,434 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 0 selfloop transitions, 0 changer transitions 124/124 dead transitions. [2022-11-20 12:04:52,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 124 transitions, 284 flow [2022-11-20 12:04:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2022-11-20 12:04:52,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9420289855072463 [2022-11-20 12:04:52,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2022-11-20 12:04:52,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2022-11-20 12:04:52,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:52,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2022-11-20 12:04:52,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,441 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 272 flow. Second operand 3 states and 455 transitions. [2022-11-20 12:04:52,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 124 transitions, 284 flow [2022-11-20 12:04:52,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 124 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:52,444 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2022-11-20 12:04:52,444 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2022-11-20 12:04:52,445 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -11 predicate places. [2022-11-20 12:04:52,445 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2022-11-20 12:04:52,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:52,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (34 of 35 remaining) [2022-11-20 12:04:52,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2022-11-20 12:04:52,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2022-11-20 12:04:52,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2022-11-20 12:04:52,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2022-11-20 12:04:52,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2022-11-20 12:04:52,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (28 of 35 remaining) [2022-11-20 12:04:52,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2022-11-20 12:04:52,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2022-11-20 12:04:52,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2022-11-20 12:04:52,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2022-11-20 12:04:52,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2022-11-20 12:04:52,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2022-11-20 12:04:52,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2022-11-20 12:04:52,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2022-11-20 12:04:52,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2022-11-20 12:04:52,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2022-11-20 12:04:52,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2022-11-20 12:04:52,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2022-11-20 12:04:52,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 35 remaining) [2022-11-20 12:04:52,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2022-11-20 12:04:52,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2022-11-20 12:04:52,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2022-11-20 12:04:52,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2022-11-20 12:04:52,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2022-11-20 12:04:52,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2022-11-20 12:04:52,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2022-11-20 12:04:52,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2022-11-20 12:04:52,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2022-11-20 12:04:52,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2022-11-20 12:04:52,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2022-11-20 12:04:52,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2022-11-20 12:04:52,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2022-11-20 12:04:52,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2022-11-20 12:04:52,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2022-11-20 12:04:52,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:04:52,460 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:52,468 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:04:52,468 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:04:52,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:04:52 BasicIcfg [2022-11-20 12:04:52,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:04:52,474 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:04:52,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:04:52,475 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:04:52,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:47" (3/4) ... [2022-11-20 12:04:52,479 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:04:52,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 12:04:52,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 12:04:52,493 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 12:04:52,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:04:52,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:04:52,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:04:52,546 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:04:52,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:04:52,547 INFO L158 Benchmark]: Toolchain (without parser) took 6064.90ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 112.7MB in the beginning and 65.3MB in the end (delta: 47.3MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. [2022-11-20 12:04:52,548 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 144.7MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:04:52,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.89ms. Allocated memory is still 144.7MB. Free memory was 112.4MB in the beginning and 101.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:04:52,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.91ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:04:52,549 INFO L158 Benchmark]: Boogie Preprocessor took 57.30ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 98.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:04:52,549 INFO L158 Benchmark]: RCFGBuilder took 732.95ms. Allocated memory is still 144.7MB. Free memory was 98.1MB in the beginning and 82.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:04:52,550 INFO L158 Benchmark]: TraceAbstraction took 4770.81ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 81.4MB in the beginning and 68.5MB in the end (delta: 12.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2022-11-20 12:04:52,550 INFO L158 Benchmark]: Witness Printer took 72.26ms. Allocated memory is still 188.7MB. Free memory was 68.5MB in the beginning and 65.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:04:52,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 144.7MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.89ms. Allocated memory is still 144.7MB. Free memory was 112.4MB in the beginning and 101.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.91ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.30ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 98.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.95ms. Allocated memory is still 144.7MB. Free memory was 98.1MB in the beginning and 82.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4770.81ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 81.4MB in the beginning and 68.5MB in the end (delta: 12.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Witness Printer took 72.26ms. Allocated memory is still 188.7MB. Free memory was 68.5MB in the beginning and 65.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 239 locations, 35 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: 4.5s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 110 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=0, InterpolantAutomatonStates: 60, 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, 1.6s InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 933 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:04:52,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2acd5e6-4f76-4bee-92ec-22e5379f27ab/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE