./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS --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 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 --- 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-4e7fbc6 [2022-11-23 03:06:53,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:06:53,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:06:53,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:06:53,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:06:53,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:06:53,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:06:53,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:06:53,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:06:53,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:06:53,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:06:53,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:06:53,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:06:53,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:06:53,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:06:53,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:06:53,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:06:53,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:06:53,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:06:53,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:06:53,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:06:53,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:06:53,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:06:53,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:06:53,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:06:53,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:06:53,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:06:53,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:06:53,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:06:53,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:06:53,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:06:53,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:06:53,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:06:53,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:06:53,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:06:53,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:06:53,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:06:53,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:06:53,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:06:53,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:06:53,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:06:53,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 03:06:53,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:06:53,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:06:53,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:06:53,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:06:53,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:06:53,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:06:53,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:06:53,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:06:53,585 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:06:53,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:06:53,585 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:06:53,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:06:53,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:06:53,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:06:53,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:06:53,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:06:53,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:06:53,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:06:53,587 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 03:06:53,587 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:06:53,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:06:53,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:06:53,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:06:53,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:06:53,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:06:53,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:06:53,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:06:53,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:06:53,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:06:53,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:06:53,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:06:53,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:06:53,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:06:53,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:06:53,591 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:06:53,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:06:53,591 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 [2022-11-23 03:06:53,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:06:53,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:06:53,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:06:53,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:06:53,929 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:06:53,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread/stack-2.i [2022-11-23 03:06:56,899 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:06:57,215 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:06:57,216 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/sv-benchmarks/c/pthread/stack-2.i [2022-11-23 03:06:57,233 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/data/97c7c2fde/4f05ac720b1f488ab00b0f6dae6b0f36/FLAG05a87489e [2022-11-23 03:06:57,247 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/data/97c7c2fde/4f05ac720b1f488ab00b0f6dae6b0f36 [2022-11-23 03:06:57,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:06:57,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:06:57,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:06:57,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:06:57,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:06:57,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:57" (1/1) ... [2022-11-23 03:06:57,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10dab187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:57, skipping insertion in model container [2022-11-23 03:06:57,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:57" (1/1) ... [2022-11-23 03:06:57,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:06:57,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:06:57,851 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_d2847512-6387-402f-a341-f2b27fba2209/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2022-11-23 03:06:57,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:06:57,923 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:06:57,972 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_d2847512-6387-402f-a341-f2b27fba2209/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2022-11-23 03:06:57,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:06:58,072 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:06:58,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58 WrapperNode [2022-11-23 03:06:58,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:06:58,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:06:58,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:06:58,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:06:58,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,165 INFO L138 Inliner]: procedures = 277, calls = 44, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 207 [2022-11-23 03:06:58,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:06:58,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:06:58,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:06:58,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:06:58,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,236 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:06:58,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:06:58,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:06:58,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:06:58,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (1/1) ... [2022-11-23 03:06:58,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:06:58,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:58,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:06:58,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2847512-6387-402f-a341-f2b27fba2209/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:06:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-23 03:06:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-23 03:06:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-23 03:06:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-23 03:06:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:06:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:06:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:06:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:06:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:06:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:06:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:06:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:06:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:06:58,344 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:06:58,544 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:06:58,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:06:58,965 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:06:58,983 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:06:58,986 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:06:58,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:58 BoogieIcfgContainer [2022-11-23 03:06:58,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:06:59,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:06:59,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:06:59,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:06:59,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:06:57" (1/3) ... [2022-11-23 03:06:59,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eccfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:59, skipping insertion in model container [2022-11-23 03:06:59,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:58" (2/3) ... [2022-11-23 03:06:59,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eccfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:59, skipping insertion in model container [2022-11-23 03:06:59,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:58" (3/3) ... [2022-11-23 03:06:59,014 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-2.i [2022-11-23 03:06:59,071 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:06:59,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:06:59,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-23 03:06:59,090 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:06:59,264 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 03:06:59,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 243 transitions, 502 flow [2022-11-23 03:06:59,439 INFO L130 PetriNetUnfolder]: 10/241 cut-off events. [2022-11-23 03:06:59,439 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:06:59,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 241 events. 10/241 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 584 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2022-11-23 03:06:59,449 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 243 transitions, 502 flow [2022-11-23 03:06:59,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 231 transitions, 471 flow [2022-11-23 03:06:59,459 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:06:59,487 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 231 transitions, 471 flow [2022-11-23 03:06:59,491 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 231 transitions, 471 flow [2022-11-23 03:06:59,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 231 transitions, 471 flow [2022-11-23 03:06:59,582 INFO L130 PetriNetUnfolder]: 10/231 cut-off events. [2022-11-23 03:06:59,582 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:06:59,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 231 events. 10/231 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 514 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2022-11-23 03:06:59,600 INFO L119 LiptonReduction]: Number of co-enabled transitions 20432 [2022-11-23 03:07:05,734 INFO L134 LiptonReduction]: Checked pairs total: 63027 [2022-11-23 03:07:05,734 INFO L136 LiptonReduction]: Total number of compositions: 170 [2022-11-23 03:07:05,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:07:05,757 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;@2b5c312d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:07:05,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-23 03:07:05,761 INFO L130 PetriNetUnfolder]: 1/9 cut-off events. [2022-11-23 03:07:05,762 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:07:05,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:05,773 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:07:05,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash 864174481, now seen corresponding path program 1 times [2022-11-23 03:07:05,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:05,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769699771] [2022-11-23 03:07:05,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:05,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:06,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:06,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:06,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769699771] [2022-11-23 03:07:06,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769699771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:06,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:06,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:07:06,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770377649] [2022-11-23 03:07:06,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:06,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:07:06,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:06,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:07:06,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:07:06,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 413 [2022-11-23 03:07:06,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 179 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:06,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:06,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 413 [2022-11-23 03:07:06,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:06,482 INFO L130 PetriNetUnfolder]: 847/2145 cut-off events. [2022-11-23 03:07:06,482 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-23 03:07:06,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 2145 events. 847/2145 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 14554 event pairs, 682 based on Foata normal form. 0/1849 useless extension candidates. Maximal degree in co-relation 3292. Up to 1371 conditions per place. [2022-11-23 03:07:06,499 INFO L137 encePairwiseOnDemand]: 411/413 looper letters, 41 selfloop transitions, 0 changer transitions 0/83 dead transitions. [2022-11-23 03:07:06,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 83 transitions, 257 flow [2022-11-23 03:07:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:07:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:07:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 507 transitions. [2022-11-23 03:07:06,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6138014527845036 [2022-11-23 03:07:06,516 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 507 transitions. [2022-11-23 03:07:06,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 507 transitions. [2022-11-23 03:07:06,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:06,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 507 transitions. [2022-11-23 03:07:06,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:06,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:06,533 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:06,535 INFO L175 Difference]: Start difference. First operand has 85 places, 85 transitions, 179 flow. Second operand 2 states and 507 transitions. [2022-11-23 03:07:06,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 83 transitions, 257 flow [2022-11-23 03:07:06,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 252 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:07:06,541 INFO L231 Difference]: Finished difference. Result has 83 places, 83 transitions, 170 flow [2022-11-23 03:07:06,543 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=170, PETRI_PLACES=83, PETRI_TRANSITIONS=83} [2022-11-23 03:07:06,546 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-23 03:07:06,547 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 83 transitions, 170 flow [2022-11-23 03:07:06,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:06,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:06,548 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:07:06,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:07:06,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1019604613, now seen corresponding path program 1 times [2022-11-23 03:07:06,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:06,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940089080] [2022-11-23 03:07:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:06,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:06,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940089080] [2022-11-23 03:07:06,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940089080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:06,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:06,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:07:06,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119464582] [2022-11-23 03:07:06,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:06,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:07:06,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:06,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:07:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:07:06,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 413 [2022-11-23 03:07:06,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:06,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:06,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 413 [2022-11-23 03:07:06,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:07,314 INFO L130 PetriNetUnfolder]: 2099/4431 cut-off events. [2022-11-23 03:07:07,315 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-23 03:07:07,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8061 conditions, 4431 events. 2099/4431 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 27861 event pairs, 694 based on Foata normal form. 0/4031 useless extension candidates. Maximal degree in co-relation 8058. Up to 2500 conditions per place. [2022-11-23 03:07:07,340 INFO L137 encePairwiseOnDemand]: 393/413 looper letters, 88 selfloop transitions, 14 changer transitions 0/130 dead transitions. [2022-11-23 03:07:07,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 130 transitions, 471 flow [2022-11-23 03:07:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:07:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:07:07,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2022-11-23 03:07:07,346 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6004842615012107 [2022-11-23 03:07:07,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2022-11-23 03:07:07,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2022-11-23 03:07:07,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:07,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2022-11-23 03:07:07,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:07,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:07,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:07,356 INFO L175 Difference]: Start difference. First operand has 83 places, 83 transitions, 170 flow. Second operand 3 states and 744 transitions. [2022-11-23 03:07:07,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 130 transitions, 471 flow [2022-11-23 03:07:07,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 130 transitions, 471 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:07:07,361 INFO L231 Difference]: Finished difference. Result has 87 places, 97 transitions, 294 flow [2022-11-23 03:07:07,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=87, PETRI_TRANSITIONS=97} [2022-11-23 03:07:07,364 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 2 predicate places. [2022-11-23 03:07:07,364 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 97 transitions, 294 flow [2022-11-23 03:07:07,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:07,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:07,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:07,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:07:07,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash 752218567, now seen corresponding path program 1 times [2022-11-23 03:07:07,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:07,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132699516] [2022-11-23 03:07:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:07,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:07,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132699516] [2022-11-23 03:07:07,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132699516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:07,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:07,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:07:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922473445] [2022-11-23 03:07:07,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:07,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:07:07,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:07,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:07:07,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:07:07,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 413 [2022-11-23 03:07:07,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 97 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:07,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:07,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 413 [2022-11-23 03:07:07,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:08,396 INFO L130 PetriNetUnfolder]: 3239/7030 cut-off events. [2022-11-23 03:07:08,396 INFO L131 PetriNetUnfolder]: For 1008/1042 co-relation queries the response was YES. [2022-11-23 03:07:08,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14092 conditions, 7030 events. 3239/7030 cut-off events. For 1008/1042 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 51827 event pairs, 1032 based on Foata normal form. 0/6268 useless extension candidates. Maximal degree in co-relation 14087. Up to 2794 conditions per place. [2022-11-23 03:07:08,444 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 90 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2022-11-23 03:07:08,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 141 transitions, 607 flow [2022-11-23 03:07:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:07:08,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:07:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2022-11-23 03:07:08,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2022-11-23 03:07:08,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 767 transitions. [2022-11-23 03:07:08,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 767 transitions. [2022-11-23 03:07:08,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:08,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 767 transitions. [2022-11-23 03:07:08,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:08,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:08,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:08,454 INFO L175 Difference]: Start difference. First operand has 87 places, 97 transitions, 294 flow. Second operand 3 states and 767 transitions. [2022-11-23 03:07:08,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 141 transitions, 607 flow [2022-11-23 03:07:08,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 141 transitions, 567 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:07:08,468 INFO L231 Difference]: Finished difference. Result has 89 places, 101 transitions, 300 flow [2022-11-23 03:07:08,469 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=89, PETRI_TRANSITIONS=101} [2022-11-23 03:07:08,470 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 4 predicate places. [2022-11-23 03:07:08,470 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 101 transitions, 300 flow [2022-11-23 03:07:08,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:08,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:08,471 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:08,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:07:08,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:08,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:08,471 INFO L85 PathProgramCache]: Analyzing trace with hash 770454131, now seen corresponding path program 1 times [2022-11-23 03:07:08,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:08,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736904938] [2022-11-23 03:07:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:08,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:09,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736904938] [2022-11-23 03:07:09,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736904938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:09,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:09,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:07:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878356445] [2022-11-23 03:07:09,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:09,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:07:09,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:09,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:07:09,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:07:09,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 413 [2022-11-23 03:07:09,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 101 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:09,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:09,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 413 [2022-11-23 03:07:09,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:14,737 INFO L130 PetriNetUnfolder]: 24906/44602 cut-off events. [2022-11-23 03:07:14,737 INFO L131 PetriNetUnfolder]: For 7167/8488 co-relation queries the response was YES. [2022-11-23 03:07:14,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93311 conditions, 44602 events. 24906/44602 cut-off events. For 7167/8488 co-relation queries the response was YES. Maximal size of possible extension queue 867. Compared 381008 event pairs, 6766 based on Foata normal form. 321/40022 useless extension candidates. Maximal degree in co-relation 93305. Up to 21551 conditions per place. [2022-11-23 03:07:15,026 INFO L137 encePairwiseOnDemand]: 403/413 looper letters, 220 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2022-11-23 03:07:15,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 284 transitions, 1293 flow [2022-11-23 03:07:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:07:15,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:07:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1516 transitions. [2022-11-23 03:07:15,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6117836965294592 [2022-11-23 03:07:15,032 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1516 transitions. [2022-11-23 03:07:15,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1516 transitions. [2022-11-23 03:07:15,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:15,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1516 transitions. [2022-11-23 03:07:15,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:15,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:15,055 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:15,056 INFO L175 Difference]: Start difference. First operand has 89 places, 101 transitions, 300 flow. Second operand 6 states and 1516 transitions. [2022-11-23 03:07:15,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 284 transitions, 1293 flow [2022-11-23 03:07:15,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 284 transitions, 1269 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:07:15,070 INFO L231 Difference]: Finished difference. Result has 97 places, 121 transitions, 434 flow [2022-11-23 03:07:15,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=434, PETRI_PLACES=97, PETRI_TRANSITIONS=121} [2022-11-23 03:07:15,073 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 12 predicate places. [2022-11-23 03:07:15,073 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 121 transitions, 434 flow [2022-11-23 03:07:15,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:15,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:15,074 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:15,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:07:15,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:15,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1964109974, now seen corresponding path program 1 times [2022-11-23 03:07:15,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:15,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194721149] [2022-11-23 03:07:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:15,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:15,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:15,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194721149] [2022-11-23 03:07:15,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194721149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:15,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:15,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:07:15,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280305944] [2022-11-23 03:07:15,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:15,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:07:15,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:15,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:07:15,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:07:15,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 413 [2022-11-23 03:07:15,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 121 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:15,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:15,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 413 [2022-11-23 03:07:15,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:18,437 INFO L130 PetriNetUnfolder]: 12548/30699 cut-off events. [2022-11-23 03:07:18,438 INFO L131 PetriNetUnfolder]: For 4119/5222 co-relation queries the response was YES. [2022-11-23 03:07:18,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64901 conditions, 30699 events. 12548/30699 cut-off events. For 4119/5222 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 323077 event pairs, 4567 based on Foata normal form. 183/28254 useless extension candidates. Maximal degree in co-relation 64891. Up to 14116 conditions per place. [2022-11-23 03:07:18,648 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 88 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2022-11-23 03:07:18,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 158 transitions, 729 flow [2022-11-23 03:07:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:07:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:07:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 757 transitions. [2022-11-23 03:07:18,651 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6109765940274415 [2022-11-23 03:07:18,651 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 757 transitions. [2022-11-23 03:07:18,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 757 transitions. [2022-11-23 03:07:18,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:18,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 757 transitions. [2022-11-23 03:07:18,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:18,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:18,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:18,659 INFO L175 Difference]: Start difference. First operand has 97 places, 121 transitions, 434 flow. Second operand 3 states and 757 transitions. [2022-11-23 03:07:18,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 158 transitions, 729 flow [2022-11-23 03:07:18,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 158 transitions, 729 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:07:18,704 INFO L231 Difference]: Finished difference. Result has 101 places, 123 transitions, 458 flow [2022-11-23 03:07:18,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=101, PETRI_TRANSITIONS=123} [2022-11-23 03:07:18,706 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 16 predicate places. [2022-11-23 03:07:18,707 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 123 transitions, 458 flow [2022-11-23 03:07:18,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:18,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:18,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:18,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:07:18,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:18,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:18,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1863455725, now seen corresponding path program 1 times [2022-11-23 03:07:18,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:18,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113139354] [2022-11-23 03:07:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:18,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:19,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:19,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113139354] [2022-11-23 03:07:19,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113139354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:19,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:19,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:07:19,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512935603] [2022-11-23 03:07:19,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:19,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:07:19,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:19,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:07:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:07:19,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 413 [2022-11-23 03:07:19,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 458 flow. Second operand has 6 states, 6 states have (on average 210.16666666666666) internal successors, (1261), 6 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:19,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:19,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 413 [2022-11-23 03:07:19,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:26,294 INFO L130 PetriNetUnfolder]: 35828/65349 cut-off events. [2022-11-23 03:07:26,295 INFO L131 PetriNetUnfolder]: For 37150/39163 co-relation queries the response was YES. [2022-11-23 03:07:26,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165965 conditions, 65349 events. 35828/65349 cut-off events. For 37150/39163 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 579338 event pairs, 18378 based on Foata normal form. 479/61610 useless extension candidates. Maximal degree in co-relation 165953. Up to 51532 conditions per place. [2022-11-23 03:07:26,923 INFO L137 encePairwiseOnDemand]: 399/413 looper letters, 168 selfloop transitions, 44 changer transitions 0/250 dead transitions. [2022-11-23 03:07:26,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 250 transitions, 1290 flow [2022-11-23 03:07:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:07:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:07:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1417 transitions. [2022-11-23 03:07:26,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5718321226795803 [2022-11-23 03:07:26,928 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1417 transitions. [2022-11-23 03:07:26,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1417 transitions. [2022-11-23 03:07:26,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:26,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1417 transitions. [2022-11-23 03:07:26,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.16666666666666) internal successors, (1417), 6 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:26,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:26,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:26,939 INFO L175 Difference]: Start difference. First operand has 101 places, 123 transitions, 458 flow. Second operand 6 states and 1417 transitions. [2022-11-23 03:07:26,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 250 transitions, 1290 flow [2022-11-23 03:07:27,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 250 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:07:27,497 INFO L231 Difference]: Finished difference. Result has 108 places, 162 transitions, 758 flow [2022-11-23 03:07:27,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=758, PETRI_PLACES=108, PETRI_TRANSITIONS=162} [2022-11-23 03:07:27,498 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 23 predicate places. [2022-11-23 03:07:27,498 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 162 transitions, 758 flow [2022-11-23 03:07:27,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.16666666666666) internal successors, (1261), 6 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:27,499 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:27,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:27,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:07:27,500 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:27,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:27,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1805050021, now seen corresponding path program 1 times [2022-11-23 03:07:27,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:27,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247503011] [2022-11-23 03:07:27,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:27,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:27,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:27,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247503011] [2022-11-23 03:07:27,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247503011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:27,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:27,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:07:27,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266906227] [2022-11-23 03:07:27,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:27,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:07:27,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:27,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:07:27,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:07:27,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 413 [2022-11-23 03:07:27,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 162 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:27,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:27,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 413 [2022-11-23 03:07:27,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:32,460 INFO L130 PetriNetUnfolder]: 20000/45960 cut-off events. [2022-11-23 03:07:32,460 INFO L131 PetriNetUnfolder]: For 18893/21658 co-relation queries the response was YES. [2022-11-23 03:07:32,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113214 conditions, 45960 events. 20000/45960 cut-off events. For 18893/21658 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 485029 event pairs, 6734 based on Foata normal form. 836/43292 useless extension candidates. Maximal degree in co-relation 113198. Up to 22476 conditions per place. [2022-11-23 03:07:32,758 INFO L137 encePairwiseOnDemand]: 410/413 looper letters, 99 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-23 03:07:32,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 207 transitions, 1126 flow [2022-11-23 03:07:32,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:07:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:07:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2022-11-23 03:07:32,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.612590799031477 [2022-11-23 03:07:32,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 759 transitions. [2022-11-23 03:07:32,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 759 transitions. [2022-11-23 03:07:32,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:32,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 759 transitions. [2022-11-23 03:07:32,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:32,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:32,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:32,772 INFO L175 Difference]: Start difference. First operand has 108 places, 162 transitions, 758 flow. Second operand 3 states and 759 transitions. [2022-11-23 03:07:32,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 207 transitions, 1126 flow [2022-11-23 03:07:33,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 207 transitions, 1102 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-11-23 03:07:33,393 INFO L231 Difference]: Finished difference. Result has 111 places, 163 transitions, 746 flow [2022-11-23 03:07:33,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=746, PETRI_PLACES=111, PETRI_TRANSITIONS=163} [2022-11-23 03:07:33,394 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 26 predicate places. [2022-11-23 03:07:33,394 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 163 transitions, 746 flow [2022-11-23 03:07:33,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:33,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:33,395 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:33,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:07:33,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:33,396 INFO L85 PathProgramCache]: Analyzing trace with hash 4848862, now seen corresponding path program 1 times [2022-11-23 03:07:33,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:33,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014265666] [2022-11-23 03:07:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:33,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014265666] [2022-11-23 03:07:33,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014265666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:33,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:33,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:07:33,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698949142] [2022-11-23 03:07:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:33,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:07:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:07:33,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:07:34,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 413 [2022-11-23 03:07:34,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 163 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 218.88888888888889) internal successors, (1970), 9 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:34,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:34,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 413 [2022-11-23 03:07:34,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:07:48,053 INFO L130 PetriNetUnfolder]: 67623/118133 cut-off events. [2022-11-23 03:07:48,053 INFO L131 PetriNetUnfolder]: For 93131/100111 co-relation queries the response was YES. [2022-11-23 03:07:48,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340398 conditions, 118133 events. 67623/118133 cut-off events. For 93131/100111 co-relation queries the response was YES. Maximal size of possible extension queue 2289. Compared 1096493 event pairs, 12320 based on Foata normal form. 5852/117778 useless extension candidates. Maximal degree in co-relation 340380. Up to 37953 conditions per place. [2022-11-23 03:07:48,754 INFO L137 encePairwiseOnDemand]: 405/413 looper letters, 330 selfloop transitions, 31 changer transitions 0/420 dead transitions. [2022-11-23 03:07:48,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 420 transitions, 2489 flow [2022-11-23 03:07:48,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:07:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 03:07:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2177 transitions. [2022-11-23 03:07:48,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5856873822975518 [2022-11-23 03:07:48,761 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2177 transitions. [2022-11-23 03:07:48,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2177 transitions. [2022-11-23 03:07:48,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:07:48,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2177 transitions. [2022-11-23 03:07:48,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 241.88888888888889) internal successors, (2177), 9 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:48,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 413.0) internal successors, (4130), 10 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:48,775 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 413.0) internal successors, (4130), 10 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:48,775 INFO L175 Difference]: Start difference. First operand has 111 places, 163 transitions, 746 flow. Second operand 9 states and 2177 transitions. [2022-11-23 03:07:48,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 420 transitions, 2489 flow [2022-11-23 03:07:53,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 420 transitions, 2482 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:07:53,705 INFO L231 Difference]: Finished difference. Result has 125 places, 189 transitions, 1053 flow [2022-11-23 03:07:53,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1053, PETRI_PLACES=125, PETRI_TRANSITIONS=189} [2022-11-23 03:07:53,706 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 40 predicate places. [2022-11-23 03:07:53,706 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 189 transitions, 1053 flow [2022-11-23 03:07:53,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 218.88888888888889) internal successors, (1970), 9 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:53,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:07:53,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:53,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:07:53,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 03:07:53,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:53,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1215688110, now seen corresponding path program 2 times [2022-11-23 03:07:53,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:53,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985309963] [2022-11-23 03:07:53,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:53,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:54,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:54,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985309963] [2022-11-23 03:07:54,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985309963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:07:54,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:07:54,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:07:54,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016549717] [2022-11-23 03:07:54,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:07:54,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:07:54,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:54,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:07:54,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:07:54,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 413 [2022-11-23 03:07:54,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 189 transitions, 1053 flow. Second operand has 9 states, 9 states have (on average 218.88888888888889) internal successors, (1970), 9 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:54,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:07:54,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 413 [2022-11-23 03:07:54,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand