./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP --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 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:11:26,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:11:26,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:11:26,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:11:26,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:11:26,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:11:26,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:11:26,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:11:26,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:11:26,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:11:26,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:11:26,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:11:26,417 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:11:26,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:11:26,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:11:26,420 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:11:26,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:11:26,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:11:26,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:11:26,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:11:26,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:11:26,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:11:26,424 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:11:26,424 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:11:26,425 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:11:26,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:11:26,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:11:26,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:11:26,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:11:26,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:11:26,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:11:26,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:11:26,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:11:26,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:11:26,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:11:26,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:11:26,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:11:26,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:11:26,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:11:26,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:11:26,431 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:11:26,432 INFO L153 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_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2023-11-06 22:11:26,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:11:26,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:11:26,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:11:26,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:11:26,785 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:11:26,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread/queue_ok.i [2023-11-06 22:11:29,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:11:30,216 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:11:30,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/sv-benchmarks/c/pthread/queue_ok.i [2023-11-06 22:11:30,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/data/cedc6bd4a/a13c75f37f734930be3809f74a8bfb37/FLAG979770478 [2023-11-06 22:11:30,251 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/data/cedc6bd4a/a13c75f37f734930be3809f74a8bfb37 [2023-11-06 22:11:30,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:11:30,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:11:30,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:11:30,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:11:30,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:11:30,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:11:30" (1/1) ... [2023-11-06 22:11:30,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745b4db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:30, skipping insertion in model container [2023-11-06 22:11:30,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:11:30" (1/1) ... [2023-11-06 22:11:30,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:11:31,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:11:31,078 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:11:31,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:11:31,266 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:11:31,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31 WrapperNode [2023-11-06 22:11:31,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:11:31,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:11:31,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:11:31,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:11:31,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,496 INFO L138 Inliner]: procedures = 274, calls = 59, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 393 [2023-11-06 22:11:31,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:11:31,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:11:31,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:11:31,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:11:31,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:11:31,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:11:31,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:11:31,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:11:31,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (1/1) ... [2023-11-06 22:11:31,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:11:31,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:31,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:31,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3af9a3-dc8a-4543-b6f2-889cd8e168c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:11:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-06 22:11:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-06 22:11:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-06 22:11:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-06 22:11:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:11:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:11:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:11:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:11:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:11:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:11:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:11:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:11:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:11:31,704 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:11:31,889 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:11:31,892 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:11:32,793 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:11:32,806 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:11:32,807 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:11:32,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:32 BoogieIcfgContainer [2023-11-06 22:11:32,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:11:32,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:11:32,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:11:32,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:11:32,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:11:30" (1/3) ... [2023-11-06 22:11:32,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc75bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:11:32, skipping insertion in model container [2023-11-06 22:11:32,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:31" (2/3) ... [2023-11-06 22:11:32,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc75bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:11:32, skipping insertion in model container [2023-11-06 22:11:32,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:32" (3/3) ... [2023-11-06 22:11:32,821 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2023-11-06 22:11:32,830 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:11:32,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:11:32,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-11-06 22:11:32,841 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:11:33,136 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:11:33,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 446 places, 454 transitions, 922 flow [2023-11-06 22:11:33,522 INFO L124 PetriNetUnfolderBase]: 15/452 cut-off events. [2023-11-06 22:11:33,522 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:11:33,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 452 events. 15/452 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 806 event pairs, 0 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 321. Up to 3 conditions per place. [2023-11-06 22:11:33,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 446 places, 454 transitions, 922 flow [2023-11-06 22:11:33,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 434 places, 442 transitions, 893 flow [2023-11-06 22:11:33,562 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:11:33,586 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 442 transitions, 893 flow [2023-11-06 22:11:33,591 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 442 transitions, 893 flow [2023-11-06 22:11:33,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 434 places, 442 transitions, 893 flow [2023-11-06 22:11:33,728 INFO L124 PetriNetUnfolderBase]: 15/442 cut-off events. [2023-11-06 22:11:33,728 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:11:33,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 442 events. 15/442 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 734 event pairs, 0 based on Foata normal form. 0/392 useless extension candidates. Maximal degree in co-relation 321. Up to 3 conditions per place. [2023-11-06 22:11:33,772 INFO L119 LiptonReduction]: Number of co-enabled transitions 54888 [2023-11-06 22:12:04,238 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 126 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:12:21,397 WARN L293 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 220 DAG size of output: 209 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:13:03,476 WARN L293 SmtUtils]: Spent 41.47s on a formula simplification. DAG size of input: 230 DAG size of output: 218 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:13:09,460 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:13:09,602 INFO L134 LiptonReduction]: Checked pairs total: 387177 [2023-11-06 22:13:09,603 INFO L136 LiptonReduction]: Total number of compositions: 308 [2023-11-06 22:13:09,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:13:09,625 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;@2525afef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:13:09,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-06 22:13:09,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:13:09,628 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:13:09,628 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:13:09,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:13:09,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:13:09,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-06 22:13:09,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:09,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1597, now seen corresponding path program 1 times [2023-11-06 22:13:09,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:09,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333263405] [2023-11-06 22:13:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:09,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:09,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:09,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333263405] [2023-11-06 22:13:09,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333263405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:09,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:09,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:13:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380182591] [2023-11-06 22:13:09,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:09,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:13:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:09,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:13:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:13:09,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 762 [2023-11-06 22:13:09,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 203 transitions, 415 flow. Second operand has 2 states, 2 states have (on average 441.5) internal successors, (883), 2 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:09,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:13:09,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 762 [2023-11-06 22:13:09,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:13:11,093 INFO L124 PetriNetUnfolderBase]: 2187/7018 cut-off events. [2023-11-06 22:13:11,094 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-11-06 22:13:11,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10606 conditions, 7018 events. 2187/7018 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 59763 event pairs, 1829 based on Foata normal form. 46/6554 useless extension candidates. Maximal degree in co-relation 10166. Up to 3512 conditions per place. [2023-11-06 22:13:11,162 INFO L140 encePairwiseOnDemand]: 754/762 looper letters, 61 selfloop transitions, 0 changer transitions 0/195 dead transitions. [2023-11-06 22:13:11,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 195 transitions, 521 flow [2023-11-06 22:13:11,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:13:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:13:11,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 951 transitions. [2023-11-06 22:13:11,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6240157480314961 [2023-11-06 22:13:11,184 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 951 transitions. [2023-11-06 22:13:11,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 951 transitions. [2023-11-06 22:13:11,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:11,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 951 transitions. [2023-11-06 22:13:11,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 475.5) internal successors, (951), 2 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:11,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 762.0) internal successors, (2286), 3 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:11,210 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 762.0) internal successors, (2286), 3 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:11,212 INFO L175 Difference]: Start difference. First operand has 202 places, 203 transitions, 415 flow. Second operand 2 states and 951 transitions. [2023-11-06 22:13:11,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 195 transitions, 521 flow [2023-11-06 22:13:11,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 195 transitions, 516 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:13:11,290 INFO L231 Difference]: Finished difference. Result has 193 places, 195 transitions, 394 flow [2023-11-06 22:13:11,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=193, PETRI_TRANSITIONS=195} [2023-11-06 22:13:11,296 INFO L281 CegarLoopForPetriNet]: 202 programPoint places, -9 predicate places. [2023-11-06 22:13:11,296 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 195 transitions, 394 flow [2023-11-06 22:13:11,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 441.5) internal successors, (883), 2 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:11,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:13:11,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:13:11,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:13:11,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-06 22:13:11,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:11,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1532803201, now seen corresponding path program 1 times [2023-11-06 22:13:11,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:11,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046465378] [2023-11-06 22:13:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:11,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:11,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:11,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046465378] [2023-11-06 22:13:11,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046465378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:11,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:11,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:13:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067008481] [2023-11-06 22:13:11,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:11,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:13:11,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:13:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:13:11,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 762 [2023-11-06 22:13:11,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 195 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:11,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:13:11,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 762 [2023-11-06 22:13:11,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:13:12,987 INFO L124 PetriNetUnfolderBase]: 2703/8515 cut-off events. [2023-11-06 22:13:12,988 INFO L125 PetriNetUnfolderBase]: For 27/79 co-relation queries the response was YES. [2023-11-06 22:13:13,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12995 conditions, 8515 events. 2703/8515 cut-off events. For 27/79 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 74753 event pairs, 594 based on Foata normal form. 1/7901 useless extension candidates. Maximal degree in co-relation 12992. Up to 3151 conditions per place. [2023-11-06 22:13:13,057 INFO L140 encePairwiseOnDemand]: 757/762 looper letters, 118 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2023-11-06 22:13:13,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 252 transitions, 755 flow [2023-11-06 22:13:13,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:13:13,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:13:13,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2023-11-06 22:13:13,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6246719160104987 [2023-11-06 22:13:13,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1428 transitions. [2023-11-06 22:13:13,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1428 transitions. [2023-11-06 22:13:13,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:13,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1428 transitions. [2023-11-06 22:13:13,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:13,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:13,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:13,080 INFO L175 Difference]: Start difference. First operand has 193 places, 195 transitions, 394 flow. Second operand 3 states and 1428 transitions. [2023-11-06 22:13:13,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 252 transitions, 755 flow [2023-11-06 22:13:13,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 252 transitions, 755 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:13:13,088 INFO L231 Difference]: Finished difference. Result has 197 places, 198 transitions, 424 flow [2023-11-06 22:13:13,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=197, PETRI_TRANSITIONS=198} [2023-11-06 22:13:13,090 INFO L281 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2023-11-06 22:13:13,090 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 198 transitions, 424 flow [2023-11-06 22:13:13,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:13,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:13:13,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:13,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:13:13,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-06 22:13:13,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:13,093 INFO L85 PathProgramCache]: Analyzing trace with hash -145994268, now seen corresponding path program 1 times [2023-11-06 22:13:13,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:13,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171882852] [2023-11-06 22:13:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:13,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:13,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:13,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171882852] [2023-11-06 22:13:13,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171882852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:13,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:13,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:13:13,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501940438] [2023-11-06 22:13:13,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:13,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:13:13,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:13,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:13:13,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:13:13,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 762 [2023-11-06 22:13:13,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 198 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:13,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:13:13,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 762 [2023-11-06 22:13:13,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:13:14,980 INFO L124 PetriNetUnfolderBase]: 2797/9006 cut-off events. [2023-11-06 22:13:14,981 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2023-11-06 22:13:15,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13911 conditions, 9006 events. 2797/9006 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 82482 event pairs, 750 based on Foata normal form. 0/8259 useless extension candidates. Maximal degree in co-relation 13906. Up to 3108 conditions per place. [2023-11-06 22:13:15,049 INFO L140 encePairwiseOnDemand]: 757/762 looper letters, 115 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2023-11-06 22:13:15,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 252 transitions, 775 flow [2023-11-06 22:13:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:13:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:13:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1424 transitions. [2023-11-06 22:13:15,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6229221347331584 [2023-11-06 22:13:15,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1424 transitions. [2023-11-06 22:13:15,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1424 transitions. [2023-11-06 22:13:15,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:15,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1424 transitions. [2023-11-06 22:13:15,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:15,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:15,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:15,075 INFO L175 Difference]: Start difference. First operand has 197 places, 198 transitions, 424 flow. Second operand 3 states and 1424 transitions. [2023-11-06 22:13:15,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 252 transitions, 775 flow [2023-11-06 22:13:15,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 252 transitions, 765 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:13:15,086 INFO L231 Difference]: Finished difference. Result has 199 places, 201 transitions, 446 flow [2023-11-06 22:13:15,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=446, PETRI_PLACES=199, PETRI_TRANSITIONS=201} [2023-11-06 22:13:15,088 INFO L281 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2023-11-06 22:13:15,089 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 201 transitions, 446 flow [2023-11-06 22:13:15,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:15,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:13:15,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:15,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:13:15,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-06 22:13:15,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2012639986, now seen corresponding path program 1 times [2023-11-06 22:13:15,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:15,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836566823] [2023-11-06 22:13:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:15,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:15,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836566823] [2023-11-06 22:13:15,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836566823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:15,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:15,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:13:15,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608561830] [2023-11-06 22:13:15,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:15,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:13:15,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:15,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:13:15,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:13:15,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 762 [2023-11-06 22:13:15,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 201 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:15,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:13:15,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 762 [2023-11-06 22:13:15,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:13:17,788 INFO L124 PetriNetUnfolderBase]: 4200/14744 cut-off events. [2023-11-06 22:13:17,789 INFO L125 PetriNetUnfolderBase]: For 366/366 co-relation queries the response was YES. [2023-11-06 22:13:17,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22172 conditions, 14744 events. 4200/14744 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 142925 event pairs, 2304 based on Foata normal form. 0/13815 useless extension candidates. Maximal degree in co-relation 22166. Up to 4378 conditions per place. [2023-11-06 22:13:17,918 INFO L140 encePairwiseOnDemand]: 759/762 looper letters, 111 selfloop transitions, 2 changer transitions 0/250 dead transitions. [2023-11-06 22:13:17,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 250 transitions, 776 flow [2023-11-06 22:13:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:13:17,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:13:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1422 transitions. [2023-11-06 22:13:17,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6220472440944882 [2023-11-06 22:13:17,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1422 transitions. [2023-11-06 22:13:17,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1422 transitions. [2023-11-06 22:13:17,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:17,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1422 transitions. [2023-11-06 22:13:17,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:17,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:17,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:17,943 INFO L175 Difference]: Start difference. First operand has 199 places, 201 transitions, 446 flow. Second operand 3 states and 1422 transitions. [2023-11-06 22:13:17,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 250 transitions, 776 flow [2023-11-06 22:13:17,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 250 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:13:17,954 INFO L231 Difference]: Finished difference. Result has 200 places, 202 transitions, 450 flow [2023-11-06 22:13:17,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=200, PETRI_TRANSITIONS=202} [2023-11-06 22:13:17,957 INFO L281 CegarLoopForPetriNet]: 202 programPoint places, -2 predicate places. [2023-11-06 22:13:17,957 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 202 transitions, 450 flow [2023-11-06 22:13:17,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:17,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:13:17,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:17,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:13:17,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-06 22:13:17,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash 534070104, now seen corresponding path program 1 times [2023-11-06 22:13:17,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:17,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116700592] [2023-11-06 22:13:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:18,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:18,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116700592] [2023-11-06 22:13:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116700592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:18,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:18,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:13:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983813772] [2023-11-06 22:13:18,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:18,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:13:18,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:18,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:13:18,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:13:19,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 762 [2023-11-06 22:13:19,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 202 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 388.6666666666667) internal successors, (2332), 6 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:19,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:13:19,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 762 [2023-11-06 22:13:19,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:13:38,794 INFO L124 PetriNetUnfolderBase]: 76142/140420 cut-off events. [2023-11-06 22:13:38,794 INFO L125 PetriNetUnfolderBase]: For 4228/4228 co-relation queries the response was YES. [2023-11-06 22:13:39,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262160 conditions, 140420 events. 76142/140420 cut-off events. For 4228/4228 co-relation queries the response was YES. Maximal size of possible extension queue 1767. Compared 1359913 event pairs, 28105 based on Foata normal form. 0/131302 useless extension candidates. Maximal degree in co-relation 262153. Up to 79150 conditions per place. [2023-11-06 22:13:39,794 INFO L140 encePairwiseOnDemand]: 724/762 looper letters, 311 selfloop transitions, 133 changer transitions 0/548 dead transitions. [2023-11-06 22:13:39,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 548 transitions, 2119 flow [2023-11-06 22:13:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:13:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:13:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2747 transitions. [2023-11-06 22:13:39,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6008311461067367 [2023-11-06 22:13:39,807 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2747 transitions. [2023-11-06 22:13:39,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2747 transitions. [2023-11-06 22:13:39,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:39,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2747 transitions. [2023-11-06 22:13:39,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 457.8333333333333) internal successors, (2747), 6 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:39,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:39,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:39,837 INFO L175 Difference]: Start difference. First operand has 200 places, 202 transitions, 450 flow. Second operand 6 states and 2747 transitions. [2023-11-06 22:13:39,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 548 transitions, 2119 flow [2023-11-06 22:13:39,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 548 transitions, 2109 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:13:39,869 INFO L231 Difference]: Finished difference. Result has 209 places, 334 transitions, 1318 flow [2023-11-06 22:13:39,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=209, PETRI_TRANSITIONS=334} [2023-11-06 22:13:39,871 INFO L281 CegarLoopForPetriNet]: 202 programPoint places, 7 predicate places. [2023-11-06 22:13:39,872 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 334 transitions, 1318 flow [2023-11-06 22:13:39,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.6666666666667) internal successors, (2332), 6 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:39,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:13:39,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:39,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:13:39,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-06 22:13:39,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1114355422, now seen corresponding path program 1 times [2023-11-06 22:13:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149623158] [2023-11-06 22:13:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:39,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149623158] [2023-11-06 22:13:39,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149623158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:13:39,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002652530] [2023-11-06 22:13:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:39,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:13:39,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:39,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:13:39,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:13:39,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 762 [2023-11-06 22:13:39,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 334 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:39,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:13:39,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 762 [2023-11-06 22:13:39,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand