./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --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_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/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_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/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_90fdaca4-ef62-4161-9239-8dd6f74b18d8/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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:20:45,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:20:45,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:20:45,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:20:45,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:20:45,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:20:45,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:20:45,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:20:45,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:20:45,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:20:45,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:20:45,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:20:45,200 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:20:45,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:20:45,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:20:45,202 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:20:45,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:20:45,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:20:45,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:20:45,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:20:45,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:20:45,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:20:45,207 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:20:45,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:20:45,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:20:45,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:20:45,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:20:45,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:20:45,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:20:45,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:20:45,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:45,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:20:45,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:20:45,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:20:45,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:20:45,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:20:45,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:20:45,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:20:45,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:20:45,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:20:45,216 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:20:45,216 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_90fdaca4-ef62-4161-9239-8dd6f74b18d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2023-11-06 22:20:45,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:20:45,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:20:45,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:20:45,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:20:45,551 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:20:45,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-06 22:20:48,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:20:48,852 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:20:48,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-06 22:20:48,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/data/edd22e1d6/d4e89ff1c3984f859746f359026036f9/FLAG0a63cae4f [2023-11-06 22:20:48,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/data/edd22e1d6/d4e89ff1c3984f859746f359026036f9 [2023-11-06 22:20:48,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:20:48,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:20:48,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:48,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:20:48,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:20:48,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:48" (1/1) ... [2023-11-06 22:20:48,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d0c91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:48, skipping insertion in model container [2023-11-06 22:20:48,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:48" (1/1) ... [2023-11-06 22:20:48,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:20:49,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:49,187 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:20:49,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:49,257 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:20:49,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49 WrapperNode [2023-11-06 22:20:49,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:49,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:49,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:20:49,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:20:49,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,321 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 213 [2023-11-06 22:20:49,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:49,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:20:49,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:20:49,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:20:49,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:20:49,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:20:49,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:20:49,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:20:49,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (1/1) ... [2023-11-06 22:20:49,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:49,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:49,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:20:49,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:20:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:20:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:20:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:20:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:20:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:20:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:20:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:20:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:20:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:20:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:20:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:20:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:20:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:20:49,509 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 22:20:49,650 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:20:49,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:20:50,500 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:20:50,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:20:50,525 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:20:50,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:50 BoogieIcfgContainer [2023-11-06 22:20:50,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:20:50,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:20:50,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:20:50,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:20:50,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:20:48" (1/3) ... [2023-11-06 22:20:50,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3b83d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:50, skipping insertion in model container [2023-11-06 22:20:50,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:49" (2/3) ... [2023-11-06 22:20:50,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3b83d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:50, skipping insertion in model container [2023-11-06 22:20:50,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:50" (3/3) ... [2023-11-06 22:20:50,544 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2023-11-06 22:20:50,554 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:20:50,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:20:50,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-06 22:20:50,566 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:20:50,782 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:20:50,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 474 places, 493 transitions, 1000 flow [2023-11-06 22:20:51,197 INFO L124 PetriNetUnfolderBase]: 26/491 cut-off events. [2023-11-06 22:20:51,197 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:20:51,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 491 events. 26/491 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1061 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 291. Up to 3 conditions per place. [2023-11-06 22:20:51,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 474 places, 493 transitions, 1000 flow [2023-11-06 22:20:51,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 450 places, 467 transitions, 946 flow [2023-11-06 22:20:51,232 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:20:51,242 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 467 transitions, 946 flow [2023-11-06 22:20:51,244 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 467 transitions, 946 flow [2023-11-06 22:20:51,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 450 places, 467 transitions, 946 flow [2023-11-06 22:20:51,375 INFO L124 PetriNetUnfolderBase]: 24/467 cut-off events. [2023-11-06 22:20:51,375 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:20:51,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 467 events. 24/467 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1048 event pairs, 0 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 291. Up to 3 conditions per place. [2023-11-06 22:20:51,414 INFO L119 LiptonReduction]: Number of co-enabled transitions 32480 [2023-11-06 22:21:02,457 INFO L134 LiptonReduction]: Checked pairs total: 236902 [2023-11-06 22:21:02,458 INFO L136 LiptonReduction]: Total number of compositions: 411 [2023-11-06 22:21:02,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:21:02,481 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;@26034e29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:21:02,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-11-06 22:21:02,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:21:02,483 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:21:02,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:21:02,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:02,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:21:02,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:02,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:02,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1753, now seen corresponding path program 1 times [2023-11-06 22:21:02,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:02,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878754604] [2023-11-06 22:21:02,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:02,603 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 22:21:02,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:02,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878754604] [2023-11-06 22:21:02,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878754604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:02,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:02,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:21:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106273735] [2023-11-06 22:21:02,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:02,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:21:02,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:21:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:21:02,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 904 [2023-11-06 22:21:02,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 180 transitions, 372 flow. Second operand has 2 states, 2 states have (on average 477.5) internal successors, (955), 2 states have internal predecessors, (955), 0 states have call successors, (0), 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 22:21:02,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:02,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 904 [2023-11-06 22:21:02,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:03,166 INFO L124 PetriNetUnfolderBase]: 817/2892 cut-off events. [2023-11-06 22:21:03,166 INFO L125 PetriNetUnfolderBase]: For 51/73 co-relation queries the response was YES. [2023-11-06 22:21:03,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4164 conditions, 2892 events. 817/2892 cut-off events. For 51/73 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 23888 event pairs, 525 based on Foata normal form. 210/2453 useless extension candidates. Maximal degree in co-relation 3890. Up to 1228 conditions per place. [2023-11-06 22:21:03,196 INFO L140 encePairwiseOnDemand]: 880/904 looper letters, 46 selfloop transitions, 0 changer transitions 1/156 dead transitions. [2023-11-06 22:21:03,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 418 flow [2023-11-06 22:21:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:21:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:21:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1025 transitions. [2023-11-06 22:21:03,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.566924778761062 [2023-11-06 22:21:03,222 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1025 transitions. [2023-11-06 22:21:03,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1025 transitions. [2023-11-06 22:21:03,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:03,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1025 transitions. [2023-11-06 22:21:03,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 512.5) internal successors, (1025), 2 states have internal predecessors, (1025), 0 states have call successors, (0), 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 22:21:03,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 904.0) internal successors, (2712), 3 states have internal predecessors, (2712), 0 states have call successors, (0), 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 22:21:03,251 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 904.0) internal successors, (2712), 3 states have internal predecessors, (2712), 0 states have call successors, (0), 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 22:21:03,253 INFO L175 Difference]: Start difference. First operand has 173 places, 180 transitions, 372 flow. Second operand 2 states and 1025 transitions. [2023-11-06 22:21:03,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 418 flow [2023-11-06 22:21:03,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 156 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:21:03,265 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 313 flow [2023-11-06 22:21:03,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=313, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2023-11-06 22:21:03,274 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2023-11-06 22:21:03,274 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 313 flow [2023-11-06 22:21:03,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 477.5) internal successors, (955), 2 states have internal predecessors, (955), 0 states have call successors, (0), 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 22:21:03,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:03,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:21:03,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:21:03,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:03,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash 583917729, now seen corresponding path program 1 times [2023-11-06 22:21:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046474587] [2023-11-06 22:21:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:03,472 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 22:21:03,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046474587] [2023-11-06 22:21:03,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046474587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:03,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:03,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:03,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578912994] [2023-11-06 22:21:03,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:03,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:03,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:03,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:03,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 904 [2023-11-06 22:21:03,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 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 22:21:03,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:03,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 904 [2023-11-06 22:21:03,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:04,024 INFO L124 PetriNetUnfolderBase]: 1095/3596 cut-off events. [2023-11-06 22:21:04,024 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-06 22:21:04,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5280 conditions, 3596 events. 1095/3596 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 29896 event pairs, 417 based on Foata normal form. 0/2866 useless extension candidates. Maximal degree in co-relation 5277. Up to 1654 conditions per place. [2023-11-06 22:21:04,057 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 55 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2023-11-06 22:21:04,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 157 transitions, 432 flow [2023-11-06 22:21:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:04,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:04,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2023-11-06 22:21:04,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357669616519174 [2023-11-06 22:21:04,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1453 transitions. [2023-11-06 22:21:04,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1453 transitions. [2023-11-06 22:21:04,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:04,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1453 transitions. [2023-11-06 22:21:04,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 0 states have call successors, (0), 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 22:21:04,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:04,083 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:04,084 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 313 flow. Second operand 3 states and 1453 transitions. [2023-11-06 22:21:04,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 157 transitions, 432 flow [2023-11-06 22:21:04,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 157 transitions, 432 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:21:04,090 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 319 flow [2023-11-06 22:21:04,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2023-11-06 22:21:04,092 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-11-06 22:21:04,092 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 319 flow [2023-11-06 22:21:04,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 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 22:21:04,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:04,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:04,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:21:04,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:04,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:04,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1488219293, now seen corresponding path program 1 times [2023-11-06 22:21:04,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:04,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215764502] [2023-11-06 22:21:04,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:04,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:04,183 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 22:21:04,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:04,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215764502] [2023-11-06 22:21:04,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215764502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:04,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:04,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:04,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902470990] [2023-11-06 22:21:04,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:04,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:04,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:04,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:04,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:04,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 904 [2023-11-06 22:21:04,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 466.6666666666667) internal successors, (1400), 3 states have internal predecessors, (1400), 0 states have call successors, (0), 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 22:21:04,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:04,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 904 [2023-11-06 22:21:04,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:04,719 INFO L124 PetriNetUnfolderBase]: 1082/3388 cut-off events. [2023-11-06 22:21:04,719 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-11-06 22:21:04,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5117 conditions, 3388 events. 1082/3388 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 27269 event pairs, 399 based on Foata normal form. 0/2693 useless extension candidates. Maximal degree in co-relation 5113. Up to 1627 conditions per place. [2023-11-06 22:21:04,747 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 56 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-11-06 22:21:04,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 155 transitions, 443 flow [2023-11-06 22:21:04,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:04,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2023-11-06 22:21:04,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357669616519174 [2023-11-06 22:21:04,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1453 transitions. [2023-11-06 22:21:04,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1453 transitions. [2023-11-06 22:21:04,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:04,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1453 transitions. [2023-11-06 22:21:04,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 0 states have call successors, (0), 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 22:21:04,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:04,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:04,771 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 319 flow. Second operand 3 states and 1453 transitions. [2023-11-06 22:21:04,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 155 transitions, 443 flow [2023-11-06 22:21:04,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 155 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:21:04,777 INFO L231 Difference]: Finished difference. Result has 145 places, 151 transitions, 325 flow [2023-11-06 22:21:04,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=145, PETRI_TRANSITIONS=151} [2023-11-06 22:21:04,779 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-11-06 22:21:04,779 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 151 transitions, 325 flow [2023-11-06 22:21:04,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 466.6666666666667) internal successors, (1400), 3 states have internal predecessors, (1400), 0 states have call successors, (0), 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 22:21:04,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:04,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:04,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:21:04,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:04,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:04,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1406350030, now seen corresponding path program 1 times [2023-11-06 22:21:04,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:04,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250172456] [2023-11-06 22:21:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:04,900 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 22:21:04,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:04,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250172456] [2023-11-06 22:21:04,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250172456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:04,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:04,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:04,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949382028] [2023-11-06 22:21:04,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:04,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:04,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:04,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:04,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:04,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 904 [2023-11-06 22:21:04,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 463.6666666666667) internal successors, (1391), 3 states have internal predecessors, (1391), 0 states have call successors, (0), 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 22:21:04,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:04,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 904 [2023-11-06 22:21:04,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:05,375 INFO L124 PetriNetUnfolderBase]: 1062/3365 cut-off events. [2023-11-06 22:21:05,375 INFO L125 PetriNetUnfolderBase]: For 82/84 co-relation queries the response was YES. [2023-11-06 22:21:05,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5110 conditions, 3365 events. 1062/3365 cut-off events. For 82/84 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 27061 event pairs, 684 based on Foata normal form. 0/2665 useless extension candidates. Maximal degree in co-relation 5105. Up to 1627 conditions per place. [2023-11-06 22:21:05,408 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 51 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-11-06 22:21:05,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 421 flow [2023-11-06 22:21:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2023-11-06 22:21:05,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5298672566371682 [2023-11-06 22:21:05,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2023-11-06 22:21:05,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2023-11-06 22:21:05,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:05,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2023-11-06 22:21:05,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 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 22:21:05,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:05,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:05,433 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 325 flow. Second operand 3 states and 1437 transitions. [2023-11-06 22:21:05,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 421 flow [2023-11-06 22:21:05,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:21:05,437 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 319 flow [2023-11-06 22:21:05,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2023-11-06 22:21:05,439 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-11-06 22:21:05,439 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 319 flow [2023-11-06 22:21:05,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.6666666666667) internal successors, (1391), 3 states have internal predecessors, (1391), 0 states have call successors, (0), 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 22:21:05,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:05,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:05,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:21:05,442 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:05,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1572124975, now seen corresponding path program 1 times [2023-11-06 22:21:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:05,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193097693] [2023-11-06 22:21:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:05,951 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 22:21:05,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:05,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193097693] [2023-11-06 22:21:05,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193097693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:05,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:05,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:05,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880727860] [2023-11-06 22:21:05,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:05,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:05,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:05,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:05,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:06,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 904 [2023-11-06 22:21:06,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 460.8333333333333) internal successors, (2765), 6 states have internal predecessors, (2765), 0 states have call successors, (0), 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 22:21:06,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:06,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 904 [2023-11-06 22:21:06,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:07,551 INFO L124 PetriNetUnfolderBase]: 2933/5590 cut-off events. [2023-11-06 22:21:07,551 INFO L125 PetriNetUnfolderBase]: For 170/172 co-relation queries the response was YES. [2023-11-06 22:21:07,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10014 conditions, 5590 events. 2933/5590 cut-off events. For 170/172 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 39575 event pairs, 156 based on Foata normal form. 0/4237 useless extension candidates. Maximal degree in co-relation 10008. Up to 1510 conditions per place. [2023-11-06 22:21:07,599 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 196 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2023-11-06 22:21:07,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 294 transitions, 1053 flow [2023-11-06 22:21:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2945 transitions. [2023-11-06 22:21:07,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.542957227138643 [2023-11-06 22:21:07,609 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2945 transitions. [2023-11-06 22:21:07,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2945 transitions. [2023-11-06 22:21:07,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:07,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2945 transitions. [2023-11-06 22:21:07,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 490.8333333333333) internal successors, (2945), 6 states have internal predecessors, (2945), 0 states have call successors, (0), 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 22:21:07,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:07,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:07,703 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 319 flow. Second operand 6 states and 2945 transitions. [2023-11-06 22:21:07,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 294 transitions, 1053 flow [2023-11-06 22:21:07,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 294 transitions, 1052 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:07,711 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 324 flow [2023-11-06 22:21:07,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2023-11-06 22:21:07,713 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-11-06 22:21:07,713 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 324 flow [2023-11-06 22:21:07,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 460.8333333333333) internal successors, (2765), 6 states have internal predecessors, (2765), 0 states have call successors, (0), 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 22:21:07,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:07,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:07,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:21:07,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:07,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:07,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1411893239, now seen corresponding path program 1 times [2023-11-06 22:21:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:07,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511960615] [2023-11-06 22:21:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:07,753 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 22:21:07,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:07,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511960615] [2023-11-06 22:21:07,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511960615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:07,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:07,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401637359] [2023-11-06 22:21:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:07,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:07,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:07,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:07,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 904 [2023-11-06 22:21:07,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 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 22:21:07,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:07,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 904 [2023-11-06 22:21:07,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:08,219 INFO L124 PetriNetUnfolderBase]: 1062/3165 cut-off events. [2023-11-06 22:21:08,219 INFO L125 PetriNetUnfolderBase]: For 324/326 co-relation queries the response was YES. [2023-11-06 22:21:08,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5188 conditions, 3165 events. 1062/3165 cut-off events. For 324/326 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 24546 event pairs, 684 based on Foata normal form. 0/2520 useless extension candidates. Maximal degree in co-relation 5182. Up to 1625 conditions per place. [2023-11-06 22:21:08,247 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 51 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2023-11-06 22:21:08,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 142 transitions, 420 flow [2023-11-06 22:21:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:08,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2023-11-06 22:21:08,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5298672566371682 [2023-11-06 22:21:08,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2023-11-06 22:21:08,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2023-11-06 22:21:08,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:08,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2023-11-06 22:21:08,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 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 22:21:08,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:08,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:08,268 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 324 flow. Second operand 3 states and 1437 transitions. [2023-11-06 22:21:08,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 142 transitions, 420 flow [2023-11-06 22:21:08,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 413 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:21:08,274 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 311 flow [2023-11-06 22:21:08,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2023-11-06 22:21:08,275 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -33 predicate places. [2023-11-06 22:21:08,275 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 311 flow [2023-11-06 22:21:08,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 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 22:21:08,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:08,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:08,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:21:08,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:08,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:08,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1411880424, now seen corresponding path program 1 times [2023-11-06 22:21:08,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:08,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183481865] [2023-11-06 22:21:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:08,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:08,339 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 22:21:08,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:08,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183481865] [2023-11-06 22:21:08,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183481865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:08,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:08,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:08,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14948879] [2023-11-06 22:21:08,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:08,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:08,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:08,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:08,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 904 [2023-11-06 22:21:08,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 471.6666666666667) internal successors, (1415), 3 states have internal predecessors, (1415), 0 states have call successors, (0), 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 22:21:08,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:08,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 904 [2023-11-06 22:21:08,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:08,757 INFO L124 PetriNetUnfolderBase]: 904/3002 cut-off events. [2023-11-06 22:21:08,757 INFO L125 PetriNetUnfolderBase]: For 71/73 co-relation queries the response was YES. [2023-11-06 22:21:08,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4505 conditions, 3002 events. 904/3002 cut-off events. For 71/73 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 23882 event pairs, 512 based on Foata normal form. 0/2396 useless extension candidates. Maximal degree in co-relation 4499. Up to 1284 conditions per place. [2023-11-06 22:21:08,782 INFO L140 encePairwiseOnDemand]: 901/904 looper letters, 70 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-11-06 22:21:08,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 166 transitions, 506 flow [2023-11-06 22:21:08,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1478 transitions. [2023-11-06 22:21:08,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5449852507374632 [2023-11-06 22:21:08,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1478 transitions. [2023-11-06 22:21:08,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1478 transitions. [2023-11-06 22:21:08,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:08,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1478 transitions. [2023-11-06 22:21:08,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 0 states have call successors, (0), 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 22:21:08,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:08,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:08,803 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 311 flow. Second operand 3 states and 1478 transitions. [2023-11-06 22:21:08,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 166 transitions, 506 flow [2023-11-06 22:21:08,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:08,808 INFO L231 Difference]: Finished difference. Result has 142 places, 143 transitions, 322 flow [2023-11-06 22:21:08,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=142, PETRI_TRANSITIONS=143} [2023-11-06 22:21:08,809 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-11-06 22:21:08,810 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 322 flow [2023-11-06 22:21:08,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.6666666666667) internal successors, (1415), 3 states have internal predecessors, (1415), 0 states have call successors, (0), 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 22:21:08,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:08,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:08,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:21:08,812 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:08,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash 380586523, now seen corresponding path program 1 times [2023-11-06 22:21:08,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:08,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381159184] [2023-11-06 22:21:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:08,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:08,843 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 22:21:08,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:08,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381159184] [2023-11-06 22:21:08,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381159184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:08,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:08,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:08,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556543094] [2023-11-06 22:21:08,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:08,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:08,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:08,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:08,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:08,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 904 [2023-11-06 22:21:08,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 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 22:21:08,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:08,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 904 [2023-11-06 22:21:08,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:09,540 INFO L124 PetriNetUnfolderBase]: 1777/5009 cut-off events. [2023-11-06 22:21:09,540 INFO L125 PetriNetUnfolderBase]: For 441/443 co-relation queries the response was YES. [2023-11-06 22:21:09,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8264 conditions, 5009 events. 1777/5009 cut-off events. For 441/443 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 40445 event pairs, 391 based on Foata normal form. 0/4210 useless extension candidates. Maximal degree in co-relation 8257. Up to 1970 conditions per place. [2023-11-06 22:21:09,571 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 86 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2023-11-06 22:21:09,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 171 transitions, 570 flow [2023-11-06 22:21:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1480 transitions. [2023-11-06 22:21:09,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5457227138643068 [2023-11-06 22:21:09,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1480 transitions. [2023-11-06 22:21:09,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1480 transitions. [2023-11-06 22:21:09,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:09,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1480 transitions. [2023-11-06 22:21:09,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.3333333333333) internal successors, (1480), 3 states have internal predecessors, (1480), 0 states have call successors, (0), 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 22:21:09,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:09,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:09,592 INFO L175 Difference]: Start difference. First operand has 142 places, 143 transitions, 322 flow. Second operand 3 states and 1480 transitions. [2023-11-06 22:21:09,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 171 transitions, 570 flow [2023-11-06 22:21:09,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 171 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:09,597 INFO L231 Difference]: Finished difference. Result has 140 places, 141 transitions, 328 flow [2023-11-06 22:21:09,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=140, PETRI_TRANSITIONS=141} [2023-11-06 22:21:09,599 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -33 predicate places. [2023-11-06 22:21:09,599 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 141 transitions, 328 flow [2023-11-06 22:21:09,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 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 22:21:09,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:09,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:09,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:21:09,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:09,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 123696714, now seen corresponding path program 1 times [2023-11-06 22:21:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564030924] [2023-11-06 22:21:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:09,631 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 22:21:09,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:09,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564030924] [2023-11-06 22:21:09,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564030924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:09,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:09,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:09,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507148307] [2023-11-06 22:21:09,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:09,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:09,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:09,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:09,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:09,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 904 [2023-11-06 22:21:09,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 141 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 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) [2023-11-06 22:21:09,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:09,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 904 [2023-11-06 22:21:09,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:10,209 INFO L124 PetriNetUnfolderBase]: 1466/4257 cut-off events. [2023-11-06 22:21:10,210 INFO L125 PetriNetUnfolderBase]: For 459/461 co-relation queries the response was YES. [2023-11-06 22:21:10,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7062 conditions, 4257 events. 1466/4257 cut-off events. For 459/461 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 34800 event pairs, 849 based on Foata normal form. 0/3615 useless extension candidates. Maximal degree in co-relation 7055. Up to 2083 conditions per place. [2023-11-06 22:21:10,241 INFO L140 encePairwiseOnDemand]: 901/904 looper letters, 69 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2023-11-06 22:21:10,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 162 transitions, 530 flow [2023-11-06 22:21:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2023-11-06 22:21:10,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543141592920354 [2023-11-06 22:21:10,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2023-11-06 22:21:10,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2023-11-06 22:21:10,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:10,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2023-11-06 22:21:10,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 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 22:21:10,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:10,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:10,259 INFO L175 Difference]: Start difference. First operand has 140 places, 141 transitions, 328 flow. Second operand 3 states and 1473 transitions. [2023-11-06 22:21:10,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 162 transitions, 530 flow [2023-11-06 22:21:10,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 162 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:21:10,265 INFO L231 Difference]: Finished difference. Result has 143 places, 142 transitions, 340 flow [2023-11-06 22:21:10,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=143, PETRI_TRANSITIONS=142} [2023-11-06 22:21:10,266 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-11-06 22:21:10,266 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 142 transitions, 340 flow [2023-11-06 22:21:10,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 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) [2023-11-06 22:21:10,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:10,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:10,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:21:10,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:10,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:10,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1393144655, now seen corresponding path program 1 times [2023-11-06 22:21:10,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:10,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899277855] [2023-11-06 22:21:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:10,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:10,300 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 22:21:10,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899277855] [2023-11-06 22:21:10,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899277855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:10,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:10,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:10,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845757563] [2023-11-06 22:21:10,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:10,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:10,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:10,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:10,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:10,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 904 [2023-11-06 22:21:10,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 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 22:21:10,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:10,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 904 [2023-11-06 22:21:10,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:11,057 INFO L124 PetriNetUnfolderBase]: 1808/4988 cut-off events. [2023-11-06 22:21:11,057 INFO L125 PetriNetUnfolderBase]: For 704/706 co-relation queries the response was YES. [2023-11-06 22:21:11,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8678 conditions, 4988 events. 1808/4988 cut-off events. For 704/706 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 39866 event pairs, 390 based on Foata normal form. 0/4398 useless extension candidates. Maximal degree in co-relation 8669. Up to 1996 conditions per place. [2023-11-06 22:21:11,103 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 86 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-11-06 22:21:11,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 170 transitions, 599 flow [2023-11-06 22:21:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:11,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1477 transitions. [2023-11-06 22:21:11,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5446165191740413 [2023-11-06 22:21:11,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1477 transitions. [2023-11-06 22:21:11,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1477 transitions. [2023-11-06 22:21:11,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:11,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1477 transitions. [2023-11-06 22:21:11,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 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 22:21:11,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:11,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:11,126 INFO L175 Difference]: Start difference. First operand has 143 places, 142 transitions, 340 flow. Second operand 3 states and 1477 transitions. [2023-11-06 22:21:11,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 170 transitions, 599 flow [2023-11-06 22:21:11,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 170 transitions, 595 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:11,136 INFO L231 Difference]: Finished difference. Result has 141 places, 140 transitions, 346 flow [2023-11-06 22:21:11,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2023-11-06 22:21:11,137 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -32 predicate places. [2023-11-06 22:21:11,137 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 346 flow [2023-11-06 22:21:11,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 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 22:21:11,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:11,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:11,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:21:11,138 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:11,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1386091265, now seen corresponding path program 1 times [2023-11-06 22:21:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671917408] [2023-11-06 22:21:11,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:11,272 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 22:21:11,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:11,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671917408] [2023-11-06 22:21:11,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671917408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:11,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:11,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:21:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409203807] [2023-11-06 22:21:11,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:11,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:21:11,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:21:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:11,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 904 [2023-11-06 22:21:11,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 461.8) internal successors, (2309), 5 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:11,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:11,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 904 [2023-11-06 22:21:11,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:12,572 INFO L124 PetriNetUnfolderBase]: 2419/6657 cut-off events. [2023-11-06 22:21:12,572 INFO L125 PetriNetUnfolderBase]: For 901/917 co-relation queries the response was YES. [2023-11-06 22:21:12,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11800 conditions, 6657 events. 2419/6657 cut-off events. For 901/917 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 58137 event pairs, 1369 based on Foata normal form. 60/5920 useless extension candidates. Maximal degree in co-relation 11791. Up to 2292 conditions per place. [2023-11-06 22:21:12,632 INFO L140 encePairwiseOnDemand]: 896/904 looper letters, 115 selfloop transitions, 7 changer transitions 0/210 dead transitions. [2023-11-06 22:21:12,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 210 transitions, 781 flow [2023-11-06 22:21:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2871 transitions. [2023-11-06 22:21:12,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5293141592920354 [2023-11-06 22:21:12,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2871 transitions. [2023-11-06 22:21:12,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2871 transitions. [2023-11-06 22:21:12,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:12,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2871 transitions. [2023-11-06 22:21:12,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 478.5) internal successors, (2871), 6 states have internal predecessors, (2871), 0 states have call successors, (0), 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 22:21:12,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:12,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:12,666 INFO L175 Difference]: Start difference. First operand has 141 places, 140 transitions, 346 flow. Second operand 6 states and 2871 transitions. [2023-11-06 22:21:12,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 210 transitions, 781 flow [2023-11-06 22:21:12,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 210 transitions, 781 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:21:12,680 INFO L231 Difference]: Finished difference. Result has 150 places, 146 transitions, 401 flow [2023-11-06 22:21:12,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=401, PETRI_PLACES=150, PETRI_TRANSITIONS=146} [2023-11-06 22:21:12,681 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -23 predicate places. [2023-11-06 22:21:12,682 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 146 transitions, 401 flow [2023-11-06 22:21:12,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 461.8) internal successors, (2309), 5 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:12,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:12,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:12,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:21:12,683 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:12,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1139366981, now seen corresponding path program 1 times [2023-11-06 22:21:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:12,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694949202] [2023-11-06 22:21:12,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:12,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:21:12,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694949202] [2023-11-06 22:21:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694949202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:12,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:12,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:21:12,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015798382] [2023-11-06 22:21:12,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:12,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:13,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 904 [2023-11-06 22:21:13,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 146 transitions, 401 flow. Second operand has 6 states, 6 states have (on average 453.6666666666667) internal successors, (2722), 6 states have internal predecessors, (2722), 0 states have call successors, (0), 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 22:21:13,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:13,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 904 [2023-11-06 22:21:13,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:14,975 INFO L124 PetriNetUnfolderBase]: 4444/11808 cut-off events. [2023-11-06 22:21:14,975 INFO L125 PetriNetUnfolderBase]: For 2597/2655 co-relation queries the response was YES. [2023-11-06 22:21:15,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22014 conditions, 11808 events. 4444/11808 cut-off events. For 2597/2655 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 113084 event pairs, 2409 based on Foata normal form. 66/10694 useless extension candidates. Maximal degree in co-relation 22000. Up to 3708 conditions per place. [2023-11-06 22:21:15,086 INFO L140 encePairwiseOnDemand]: 896/904 looper letters, 141 selfloop transitions, 13 changer transitions 0/242 dead transitions. [2023-11-06 22:21:15,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 242 transitions, 991 flow [2023-11-06 22:21:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2844 transitions. [2023-11-06 22:21:15,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243362831858407 [2023-11-06 22:21:15,097 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2844 transitions. [2023-11-06 22:21:15,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2844 transitions. [2023-11-06 22:21:15,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:15,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2844 transitions. [2023-11-06 22:21:15,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 474.0) internal successors, (2844), 6 states have internal predecessors, (2844), 0 states have call successors, (0), 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 22:21:15,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:15,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:15,119 INFO L175 Difference]: Start difference. First operand has 150 places, 146 transitions, 401 flow. Second operand 6 states and 2844 transitions. [2023-11-06 22:21:15,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 242 transitions, 991 flow [2023-11-06 22:21:15,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 242 transitions, 985 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:15,151 INFO L231 Difference]: Finished difference. Result has 158 places, 155 transitions, 507 flow [2023-11-06 22:21:15,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=507, PETRI_PLACES=158, PETRI_TRANSITIONS=155} [2023-11-06 22:21:15,152 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -15 predicate places. [2023-11-06 22:21:15,152 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 155 transitions, 507 flow [2023-11-06 22:21:15,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.6666666666667) internal successors, (2722), 6 states have internal predecessors, (2722), 0 states have call successors, (0), 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 22:21:15,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:15,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:15,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:21:15,154 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:15,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:15,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1478434278, now seen corresponding path program 1 times [2023-11-06 22:21:15,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:15,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290423400] [2023-11-06 22:21:15,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:15,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:15,478 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 22:21:15,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:15,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290423400] [2023-11-06 22:21:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290423400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:15,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:15,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132369603] [2023-11-06 22:21:15,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:15,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:15,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:15,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:15,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:15,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 904 [2023-11-06 22:21:15,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 155 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 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 22:21:15,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:15,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 904 [2023-11-06 22:21:15,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:17,387 INFO L124 PetriNetUnfolderBase]: 3368/8954 cut-off events. [2023-11-06 22:21:17,395 INFO L125 PetriNetUnfolderBase]: For 4791/4817 co-relation queries the response was YES. [2023-11-06 22:21:17,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17755 conditions, 8954 events. 3368/8954 cut-off events. For 4791/4817 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 80880 event pairs, 1957 based on Foata normal form. 41/8094 useless extension candidates. Maximal degree in co-relation 17737. Up to 4047 conditions per place. [2023-11-06 22:21:17,451 INFO L140 encePairwiseOnDemand]: 894/904 looper letters, 117 selfloop transitions, 10 changer transitions 0/215 dead transitions. [2023-11-06 22:21:17,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 215 transitions, 1008 flow [2023-11-06 22:21:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:21:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:21:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3267 transitions. [2023-11-06 22:21:17,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5162768647281921 [2023-11-06 22:21:17,463 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3267 transitions. [2023-11-06 22:21:17,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3267 transitions. [2023-11-06 22:21:17,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:17,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3267 transitions. [2023-11-06 22:21:17,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 466.7142857142857) internal successors, (3267), 7 states have internal predecessors, (3267), 0 states have call successors, (0), 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 22:21:17,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 904.0) internal successors, (7232), 8 states have internal predecessors, (7232), 0 states have call successors, (0), 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 22:21:17,606 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 904.0) internal successors, (7232), 8 states have internal predecessors, (7232), 0 states have call successors, (0), 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 22:21:17,606 INFO L175 Difference]: Start difference. First operand has 158 places, 155 transitions, 507 flow. Second operand 7 states and 3267 transitions. [2023-11-06 22:21:17,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 215 transitions, 1008 flow [2023-11-06 22:21:17,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 215 transitions, 994 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:17,626 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 557 flow [2023-11-06 22:21:17,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=557, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2023-11-06 22:21:17,628 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2023-11-06 22:21:17,628 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 557 flow [2023-11-06 22:21:17,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 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 22:21:17,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:17,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:17,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:21:17,629 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:17,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1592943693, now seen corresponding path program 1 times [2023-11-06 22:21:17,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:17,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435466459] [2023-11-06 22:21:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:17,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:21:18,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435466459] [2023-11-06 22:21:18,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435466459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:18,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:18,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:18,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186936155] [2023-11-06 22:21:18,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:18,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:18,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:18,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:18,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 904 [2023-11-06 22:21:18,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 557 flow. Second operand has 6 states, 6 states have (on average 454.6666666666667) internal successors, (2728), 6 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:21:18,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:18,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 904 [2023-11-06 22:21:18,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:20,391 INFO L124 PetriNetUnfolderBase]: 4152/10160 cut-off events. [2023-11-06 22:21:20,391 INFO L125 PetriNetUnfolderBase]: For 6486/6512 co-relation queries the response was YES. [2023-11-06 22:21:20,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21519 conditions, 10160 events. 4152/10160 cut-off events. For 6486/6512 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 88512 event pairs, 2092 based on Foata normal form. 0/9369 useless extension candidates. Maximal degree in co-relation 21498. Up to 5056 conditions per place. [2023-11-06 22:21:20,457 INFO L140 encePairwiseOnDemand]: 896/904 looper letters, 176 selfloop transitions, 6 changer transitions 0/258 dead transitions. [2023-11-06 22:21:20,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 258 transitions, 1237 flow [2023-11-06 22:21:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:20,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2862 transitions. [2023-11-06 22:21:20,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276548672566371 [2023-11-06 22:21:20,468 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2862 transitions. [2023-11-06 22:21:20,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2862 transitions. [2023-11-06 22:21:20,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:20,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2862 transitions. [2023-11-06 22:21:20,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 477.0) internal successors, (2862), 6 states have internal predecessors, (2862), 0 states have call successors, (0), 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 22:21:20,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:20,491 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:20,491 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 557 flow. Second operand 6 states and 2862 transitions. [2023-11-06 22:21:20,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 258 transitions, 1237 flow [2023-11-06 22:21:20,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 258 transitions, 1229 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:21:20,527 INFO L231 Difference]: Finished difference. Result has 166 places, 158 transitions, 557 flow [2023-11-06 22:21:20,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=557, PETRI_PLACES=166, PETRI_TRANSITIONS=158} [2023-11-06 22:21:20,529 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2023-11-06 22:21:20,529 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 158 transitions, 557 flow [2023-11-06 22:21:20,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 454.6666666666667) internal successors, (2728), 6 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:21:20,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:20,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:20,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:21:20,530 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:20,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash -536952490, now seen corresponding path program 1 times [2023-11-06 22:21:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:20,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654076007] [2023-11-06 22:21:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:20,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:21:20,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:20,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654076007] [2023-11-06 22:21:20,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654076007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:20,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:20,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:20,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568826028] [2023-11-06 22:21:20,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:20,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:21:20,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:21:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:20,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 904 [2023-11-06 22:21:20,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 158 transitions, 557 flow. Second operand has 5 states, 5 states have (on average 462.6) internal successors, (2313), 5 states have internal predecessors, (2313), 0 states have call successors, (0), 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 22:21:20,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:20,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 904 [2023-11-06 22:21:20,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:21,902 INFO L124 PetriNetUnfolderBase]: 2504/6605 cut-off events. [2023-11-06 22:21:21,902 INFO L125 PetriNetUnfolderBase]: For 4284/4316 co-relation queries the response was YES. [2023-11-06 22:21:21,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13987 conditions, 6605 events. 2504/6605 cut-off events. For 4284/4316 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 55917 event pairs, 1469 based on Foata normal form. 47/6107 useless extension candidates. Maximal degree in co-relation 13966. Up to 2862 conditions per place. [2023-11-06 22:21:21,949 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 106 selfloop transitions, 10 changer transitions 0/202 dead transitions. [2023-11-06 22:21:21,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 202 transitions, 971 flow [2023-11-06 22:21:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:21:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:21:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2389 transitions. [2023-11-06 22:21:21,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5285398230088496 [2023-11-06 22:21:21,958 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2389 transitions. [2023-11-06 22:21:21,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2389 transitions. [2023-11-06 22:21:21,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:21,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2389 transitions. [2023-11-06 22:21:21,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 477.8) internal successors, (2389), 5 states have internal predecessors, (2389), 0 states have call successors, (0), 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 22:21:21,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 904.0) internal successors, (5424), 6 states have internal predecessors, (5424), 0 states have call successors, (0), 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 22:21:21,974 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 904.0) internal successors, (5424), 6 states have internal predecessors, (5424), 0 states have call successors, (0), 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 22:21:21,975 INFO L175 Difference]: Start difference. First operand has 166 places, 158 transitions, 557 flow. Second operand 5 states and 2389 transitions. [2023-11-06 22:21:21,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 202 transitions, 971 flow [2023-11-06 22:21:21,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 202 transitions, 959 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:21:22,121 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 609 flow [2023-11-06 22:21:22,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=609, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2023-11-06 22:21:22,122 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -6 predicate places. [2023-11-06 22:21:22,122 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 609 flow [2023-11-06 22:21:22,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 462.6) internal successors, (2313), 5 states have internal predecessors, (2313), 0 states have call successors, (0), 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 22:21:22,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:22,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:22,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:21:22,123 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:22,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash 639023694, now seen corresponding path program 1 times [2023-11-06 22:21:22,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:22,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193171723] [2023-11-06 22:21:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:22,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:21:22,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:22,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193171723] [2023-11-06 22:21:22,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193171723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:22,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:22,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:22,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292927745] [2023-11-06 22:21:22,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:22,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:22,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:23,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 904 [2023-11-06 22:21:23,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 455.1666666666667) internal successors, (2731), 6 states have internal predecessors, (2731), 0 states have call successors, (0), 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 22:21:23,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:23,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 904 [2023-11-06 22:21:23,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:24,400 INFO L124 PetriNetUnfolderBase]: 3122/7158 cut-off events. [2023-11-06 22:21:24,400 INFO L125 PetriNetUnfolderBase]: For 5750/5782 co-relation queries the response was YES. [2023-11-06 22:21:24,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16169 conditions, 7158 events. 3122/7158 cut-off events. For 5750/5782 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 56829 event pairs, 1408 based on Foata normal form. 2/6599 useless extension candidates. Maximal degree in co-relation 16146. Up to 3494 conditions per place. [2023-11-06 22:21:24,477 INFO L140 encePairwiseOnDemand]: 896/904 looper letters, 159 selfloop transitions, 6 changer transitions 0/240 dead transitions. [2023-11-06 22:21:24,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 240 transitions, 1247 flow [2023-11-06 22:21:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2841 transitions. [2023-11-06 22:21:24,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5237831858407079 [2023-11-06 22:21:24,489 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2841 transitions. [2023-11-06 22:21:24,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2841 transitions. [2023-11-06 22:21:24,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:24,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2841 transitions. [2023-11-06 22:21:24,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 0 states have call successors, (0), 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 22:21:24,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:24,509 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:24,509 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 609 flow. Second operand 6 states and 2841 transitions. [2023-11-06 22:21:24,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 240 transitions, 1247 flow [2023-11-06 22:21:24,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 240 transitions, 1237 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:21:24,540 INFO L231 Difference]: Finished difference. Result has 168 places, 160 transitions, 607 flow [2023-11-06 22:21:24,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=607, PETRI_PLACES=168, PETRI_TRANSITIONS=160} [2023-11-06 22:21:24,541 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2023-11-06 22:21:24,541 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 160 transitions, 607 flow [2023-11-06 22:21:24,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.1666666666667) internal successors, (2731), 6 states have internal predecessors, (2731), 0 states have call successors, (0), 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 22:21:24,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:24,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:24,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:21:24,542 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:24,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash 514755441, now seen corresponding path program 1 times [2023-11-06 22:21:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:24,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268168678] [2023-11-06 22:21:24,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:24,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:24,645 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 22:21:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268168678] [2023-11-06 22:21:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268168678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:24,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:24,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:24,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854342134] [2023-11-06 22:21:24,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:24,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:21:24,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:24,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:21:24,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:21:24,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 904 [2023-11-06 22:21:24,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 160 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 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 22:21:24,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:24,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 904 [2023-11-06 22:21:24,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:25,579 INFO L124 PetriNetUnfolderBase]: 2609/6983 cut-off events. [2023-11-06 22:21:25,579 INFO L125 PetriNetUnfolderBase]: For 5184/5196 co-relation queries the response was YES. [2023-11-06 22:21:25,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15219 conditions, 6983 events. 2609/6983 cut-off events. For 5184/5196 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 57955 event pairs, 1083 based on Foata normal form. 2/6577 useless extension candidates. Maximal degree in co-relation 15196. Up to 3516 conditions per place. [2023-11-06 22:21:25,633 INFO L140 encePairwiseOnDemand]: 901/904 looper letters, 112 selfloop transitions, 3 changer transitions 0/199 dead transitions. [2023-11-06 22:21:25,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 199 transitions, 1021 flow [2023-11-06 22:21:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:21:25,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:21:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1496 transitions. [2023-11-06 22:21:25,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.551622418879056 [2023-11-06 22:21:25,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1496 transitions. [2023-11-06 22:21:25,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1496 transitions. [2023-11-06 22:21:25,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:25,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1496 transitions. [2023-11-06 22:21:25,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 498.6666666666667) internal successors, (1496), 3 states have internal predecessors, (1496), 0 states have call successors, (0), 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 22:21:25,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:25,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 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 22:21:25,650 INFO L175 Difference]: Start difference. First operand has 168 places, 160 transitions, 607 flow. Second operand 3 states and 1496 transitions. [2023-11-06 22:21:25,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 199 transitions, 1021 flow [2023-11-06 22:21:25,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 199 transitions, 1005 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:21:25,684 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 606 flow [2023-11-06 22:21:25,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2023-11-06 22:21:25,685 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2023-11-06 22:21:25,686 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 606 flow [2023-11-06 22:21:25,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 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 22:21:25,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:25,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:25,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:21:25,687 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:25,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:25,687 INFO L85 PathProgramCache]: Analyzing trace with hash 848103146, now seen corresponding path program 1 times [2023-11-06 22:21:25,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:25,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075486396] [2023-11-06 22:21:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:25,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:26,084 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 22:21:26,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:26,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075486396] [2023-11-06 22:21:26,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075486396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:26,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:26,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:26,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118641011] [2023-11-06 22:21:26,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:26,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:26,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:26,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:26,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:26,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 904 [2023-11-06 22:21:26,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 461.6666666666667) internal successors, (2770), 6 states have internal predecessors, (2770), 0 states have call successors, (0), 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 22:21:26,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:26,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 904 [2023-11-06 22:21:26,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:27,695 INFO L124 PetriNetUnfolderBase]: 2876/7081 cut-off events. [2023-11-06 22:21:27,696 INFO L125 PetriNetUnfolderBase]: For 6187/6191 co-relation queries the response was YES. [2023-11-06 22:21:27,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15902 conditions, 7081 events. 2876/7081 cut-off events. For 6187/6191 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 57823 event pairs, 1549 based on Foata normal form. 0/6729 useless extension candidates. Maximal degree in co-relation 15878. Up to 3798 conditions per place. [2023-11-06 22:21:27,740 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 106 selfloop transitions, 4 changer transitions 94/283 dead transitions. [2023-11-06 22:21:27,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 283 transitions, 1648 flow [2023-11-06 22:21:27,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2885 transitions. [2023-11-06 22:21:27,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5318952802359882 [2023-11-06 22:21:27,854 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2885 transitions. [2023-11-06 22:21:27,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2885 transitions. [2023-11-06 22:21:27,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:27,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2885 transitions. [2023-11-06 22:21:27,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 480.8333333333333) internal successors, (2885), 6 states have internal predecessors, (2885), 0 states have call successors, (0), 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 22:21:27,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:27,868 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:27,868 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 606 flow. Second operand 6 states and 2885 transitions. [2023-11-06 22:21:27,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 283 transitions, 1648 flow [2023-11-06 22:21:27,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 283 transitions, 1642 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:21:27,899 INFO L231 Difference]: Finished difference. Result has 168 places, 137 transitions, 405 flow [2023-11-06 22:21:27,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=405, PETRI_PLACES=168, PETRI_TRANSITIONS=137} [2023-11-06 22:21:27,900 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2023-11-06 22:21:27,900 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 137 transitions, 405 flow [2023-11-06 22:21:27,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 461.6666666666667) internal successors, (2770), 6 states have internal predecessors, (2770), 0 states have call successors, (0), 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 22:21:27,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:27,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:27,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:21:27,902 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:27,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:27,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1625163939, now seen corresponding path program 1 times [2023-11-06 22:21:27,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:27,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682439838] [2023-11-06 22:21:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:27,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:21:28,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682439838] [2023-11-06 22:21:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682439838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:28,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926384866] [2023-11-06 22:21:28,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:28,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:28,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:28,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:28,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 904 [2023-11-06 22:21:28,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 137 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 455.1666666666667) internal successors, (2731), 6 states have internal predecessors, (2731), 0 states have call successors, (0), 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 22:21:28,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:28,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 904 [2023-11-06 22:21:28,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:29,877 INFO L124 PetriNetUnfolderBase]: 2022/5014 cut-off events. [2023-11-06 22:21:29,877 INFO L125 PetriNetUnfolderBase]: For 2851/2859 co-relation queries the response was YES. [2023-11-06 22:21:29,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10668 conditions, 5014 events. 2022/5014 cut-off events. For 2851/2859 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 37563 event pairs, 884 based on Foata normal form. 2/4777 useless extension candidates. Maximal degree in co-relation 10644. Up to 2138 conditions per place. [2023-11-06 22:21:29,903 INFO L140 encePairwiseOnDemand]: 896/904 looper letters, 78 selfloop transitions, 6 changer transitions 61/211 dead transitions. [2023-11-06 22:21:29,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 211 transitions, 973 flow [2023-11-06 22:21:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2838 transitions. [2023-11-06 22:21:29,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5232300884955752 [2023-11-06 22:21:29,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2838 transitions. [2023-11-06 22:21:29,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2838 transitions. [2023-11-06 22:21:29,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:29,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2838 transitions. [2023-11-06 22:21:29,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 473.0) internal successors, (2838), 6 states have internal predecessors, (2838), 0 states have call successors, (0), 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 22:21:29,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:29,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:29,926 INFO L175 Difference]: Start difference. First operand has 168 places, 137 transitions, 405 flow. Second operand 6 states and 2838 transitions. [2023-11-06 22:21:29,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 211 transitions, 973 flow [2023-11-06 22:21:29,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 211 transitions, 846 flow, removed 56 selfloop flow, removed 15 redundant places. [2023-11-06 22:21:29,940 INFO L231 Difference]: Finished difference. Result has 145 places, 118 transitions, 325 flow [2023-11-06 22:21:29,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=145, PETRI_TRANSITIONS=118} [2023-11-06 22:21:29,941 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-11-06 22:21:29,941 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 118 transitions, 325 flow [2023-11-06 22:21:29,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.1666666666667) internal successors, (2731), 6 states have internal predecessors, (2731), 0 states have call successors, (0), 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 22:21:29,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:29,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:29,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:21:29,942 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-06 22:21:29,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:29,943 INFO L85 PathProgramCache]: Analyzing trace with hash 766395507, now seen corresponding path program 1 times [2023-11-06 22:21:29,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:29,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190343101] [2023-11-06 22:21:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:29,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:21:30,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:30,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190343101] [2023-11-06 22:21:30,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190343101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:30,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:30,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:21:30,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751204843] [2023-11-06 22:21:30,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:30,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:30,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:30,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:30,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:21:30,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 904 [2023-11-06 22:21:30,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 118 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 454.6666666666667) internal successors, (2728), 6 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:21:30,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:30,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 904 [2023-11-06 22:21:30,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:31,589 INFO L124 PetriNetUnfolderBase]: 1501/3818 cut-off events. [2023-11-06 22:21:31,589 INFO L125 PetriNetUnfolderBase]: For 807/815 co-relation queries the response was YES. [2023-11-06 22:21:31,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7263 conditions, 3818 events. 1501/3818 cut-off events. For 807/815 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 27467 event pairs, 650 based on Foata normal form. 38/3630 useless extension candidates. Maximal degree in co-relation 7250. Up to 1496 conditions per place. [2023-11-06 22:21:31,610 INFO L140 encePairwiseOnDemand]: 897/904 looper letters, 0 selfloop transitions, 0 changer transitions 212/212 dead transitions. [2023-11-06 22:21:31,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 212 transitions, 889 flow [2023-11-06 22:21:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2853 transitions. [2023-11-06 22:21:31,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525995575221239 [2023-11-06 22:21:31,619 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2853 transitions. [2023-11-06 22:21:31,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2853 transitions. [2023-11-06 22:21:31,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:31,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2853 transitions. [2023-11-06 22:21:31,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 475.5) internal successors, (2853), 6 states have internal predecessors, (2853), 0 states have call successors, (0), 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 22:21:31,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:31,630 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 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 22:21:31,630 INFO L175 Difference]: Start difference. First operand has 145 places, 118 transitions, 325 flow. Second operand 6 states and 2853 transitions. [2023-11-06 22:21:31,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 212 transitions, 889 flow [2023-11-06 22:21:31,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 212 transitions, 851 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:21:31,637 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2023-11-06 22:21:31,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2023-11-06 22:21:31,638 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -45 predicate places. [2023-11-06 22:21:31,638 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2023-11-06 22:21:31,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 454.6666666666667) internal successors, (2728), 6 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:21:31,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (95 of 96 remaining) [2023-11-06 22:21:31,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (94 of 96 remaining) [2023-11-06 22:21:31,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (93 of 96 remaining) [2023-11-06 22:21:31,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (92 of 96 remaining) [2023-11-06 22:21:31,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (91 of 96 remaining) [2023-11-06 22:21:31,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (90 of 96 remaining) [2023-11-06 22:21:31,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (89 of 96 remaining) [2023-11-06 22:21:31,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (88 of 96 remaining) [2023-11-06 22:21:31,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (87 of 96 remaining) [2023-11-06 22:21:31,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (86 of 96 remaining) [2023-11-06 22:21:31,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (85 of 96 remaining) [2023-11-06 22:21:31,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (84 of 96 remaining) [2023-11-06 22:21:31,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (83 of 96 remaining) [2023-11-06 22:21:31,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (82 of 96 remaining) [2023-11-06 22:21:31,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (81 of 96 remaining) [2023-11-06 22:21:31,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (80 of 96 remaining) [2023-11-06 22:21:31,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (79 of 96 remaining) [2023-11-06 22:21:31,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (78 of 96 remaining) [2023-11-06 22:21:31,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (77 of 96 remaining) [2023-11-06 22:21:31,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (76 of 96 remaining) [2023-11-06 22:21:31,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (75 of 96 remaining) [2023-11-06 22:21:31,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (74 of 96 remaining) [2023-11-06 22:21:31,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (73 of 96 remaining) [2023-11-06 22:21:31,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (72 of 96 remaining) [2023-11-06 22:21:31,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (71 of 96 remaining) [2023-11-06 22:21:31,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (70 of 96 remaining) [2023-11-06 22:21:31,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (69 of 96 remaining) [2023-11-06 22:21:31,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (68 of 96 remaining) [2023-11-06 22:21:31,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 96 remaining) [2023-11-06 22:21:31,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (66 of 96 remaining) [2023-11-06 22:21:31,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 96 remaining) [2023-11-06 22:21:31,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 96 remaining) [2023-11-06 22:21:31,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 96 remaining) [2023-11-06 22:21:31,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 96 remaining) [2023-11-06 22:21:31,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 96 remaining) [2023-11-06 22:21:31,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (60 of 96 remaining) [2023-11-06 22:21:31,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (59 of 96 remaining) [2023-11-06 22:21:31,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (58 of 96 remaining) [2023-11-06 22:21:31,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 96 remaining) [2023-11-06 22:21:31,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 96 remaining) [2023-11-06 22:21:31,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 96 remaining) [2023-11-06 22:21:31,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 96 remaining) [2023-11-06 22:21:31,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 96 remaining) [2023-11-06 22:21:31,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (52 of 96 remaining) [2023-11-06 22:21:31,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (51 of 96 remaining) [2023-11-06 22:21:31,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (50 of 96 remaining) [2023-11-06 22:21:31,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (49 of 96 remaining) [2023-11-06 22:21:31,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (48 of 96 remaining) [2023-11-06 22:21:31,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (47 of 96 remaining) [2023-11-06 22:21:31,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (46 of 96 remaining) [2023-11-06 22:21:31,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (45 of 96 remaining) [2023-11-06 22:21:31,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (44 of 96 remaining) [2023-11-06 22:21:31,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (43 of 96 remaining) [2023-11-06 22:21:31,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 96 remaining) [2023-11-06 22:21:31,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 96 remaining) [2023-11-06 22:21:31,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (40 of 96 remaining) [2023-11-06 22:21:31,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 96 remaining) [2023-11-06 22:21:31,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 96 remaining) [2023-11-06 22:21:31,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 96 remaining) [2023-11-06 22:21:31,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 96 remaining) [2023-11-06 22:21:31,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (35 of 96 remaining) [2023-11-06 22:21:31,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 96 remaining) [2023-11-06 22:21:31,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (33 of 96 remaining) [2023-11-06 22:21:31,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (32 of 96 remaining) [2023-11-06 22:21:31,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (31 of 96 remaining) [2023-11-06 22:21:31,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (30 of 96 remaining) [2023-11-06 22:21:31,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (29 of 96 remaining) [2023-11-06 22:21:31,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (28 of 96 remaining) [2023-11-06 22:21:31,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (27 of 96 remaining) [2023-11-06 22:21:31,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (26 of 96 remaining) [2023-11-06 22:21:31,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (25 of 96 remaining) [2023-11-06 22:21:31,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (24 of 96 remaining) [2023-11-06 22:21:31,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (23 of 96 remaining) [2023-11-06 22:21:31,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 96 remaining) [2023-11-06 22:21:31,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (21 of 96 remaining) [2023-11-06 22:21:31,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (20 of 96 remaining) [2023-11-06 22:21:31,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (19 of 96 remaining) [2023-11-06 22:21:31,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (18 of 96 remaining) [2023-11-06 22:21:31,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (17 of 96 remaining) [2023-11-06 22:21:31,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (16 of 96 remaining) [2023-11-06 22:21:31,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 96 remaining) [2023-11-06 22:21:31,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (14 of 96 remaining) [2023-11-06 22:21:31,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (13 of 96 remaining) [2023-11-06 22:21:31,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (12 of 96 remaining) [2023-11-06 22:21:31,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (11 of 96 remaining) [2023-11-06 22:21:31,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 96 remaining) [2023-11-06 22:21:31,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 96 remaining) [2023-11-06 22:21:31,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (8 of 96 remaining) [2023-11-06 22:21:31,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 96 remaining) [2023-11-06 22:21:31,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 96 remaining) [2023-11-06 22:21:31,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 96 remaining) [2023-11-06 22:21:31,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 96 remaining) [2023-11-06 22:21:31,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 96 remaining) [2023-11-06 22:21:31,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 96 remaining) [2023-11-06 22:21:31,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 96 remaining) [2023-11-06 22:21:31,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 96 remaining) [2023-11-06 22:21:31,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:21:31,659 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:31,665 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:21:31,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:21:31,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:21:31 BasicIcfg [2023-11-06 22:21:31,670 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:21:31,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:21:31,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:21:31,671 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:21:31,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:50" (3/4) ... [2023-11-06 22:21:31,673 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:21:31,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:21:31,678 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:21:31,686 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-06 22:21:31,687 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:21:31,688 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:21:31,688 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:21:31,761 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:21:31,761 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:21:31,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:21:31,762 INFO L158 Benchmark]: Toolchain (without parser) took 42845.00ms. Allocated memory was 172.0MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 143.2MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 722.6MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,762 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:21:31,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.45ms. Allocated memory is still 172.0MB. Free memory was 142.7MB in the beginning and 129.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.91ms. Allocated memory is still 172.0MB. Free memory was 129.3MB in the beginning and 127.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,764 INFO L158 Benchmark]: Boogie Preprocessor took 86.03ms. Allocated memory is still 172.0MB. Free memory was 127.2MB in the beginning and 124.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,764 INFO L158 Benchmark]: RCFGBuilder took 1120.61ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 87.9MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,765 INFO L158 Benchmark]: TraceAbstraction took 41136.35ms. Allocated memory was 172.0MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 87.4MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 661.8MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,765 INFO L158 Benchmark]: Witness Printer took 90.66ms. Allocated memory is still 3.2GB. Free memory was 2.5GB in the beginning and 2.5GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:21:31,767 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.45ms. Allocated memory is still 172.0MB. Free memory was 142.7MB in the beginning and 129.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.91ms. Allocated memory is still 172.0MB. Free memory was 129.3MB in the beginning and 127.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.03ms. Allocated memory is still 172.0MB. Free memory was 127.2MB in the beginning and 124.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1120.61ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 87.9MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 41136.35ms. Allocated memory was 172.0MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 87.4MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 661.8MB. Max. memory is 16.1GB. * Witness Printer took 90.66ms. Allocated memory is still 3.2GB. Free memory was 2.5GB in the beginning and 2.5GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 450 PlacesBefore, 173 PlacesAfterwards, 467 TransitionsBefore, 180 TransitionsAfterwards, 32480 CoEnabledTransitionPairs, 8 FixpointIterations, 242 TrivialSequentialCompositions, 114 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 14 ConcurrentYvCompositions, 10 ChoiceCompositions, 411 TotalNumberOfCompositions, 236902 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55512, independent: 53099, independent conditional: 0, independent unconditional: 53099, dependent: 2413, dependent conditional: 0, dependent unconditional: 2413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15280, independent: 15001, independent conditional: 0, independent unconditional: 15001, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55512, independent: 38098, independent conditional: 0, independent unconditional: 38098, dependent: 2134, dependent conditional: 0, dependent unconditional: 2134, unknown: 15280, unknown conditional: 0, unknown unconditional: 15280] , Statistics on independence cache: Total cache size (in pairs): 2954, Positive cache size: 2795, Positive conditional cache size: 0, Positive unconditional cache size: 2795, Negative cache size: 159, Negative conditional cache size: 0, Negative unconditional cache size: 159, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 684 locations, 96 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 40.8s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4316 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2750 mSDsluCounter, 1446 SdHoareTripleChecker+Invalid, 7.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 948 mSDsCounter, 1128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8314 IncrementalHoareTripleChecker+Invalid, 9442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1128 mSolverCounterUnsat, 498 mSDtfsCounter, 8314 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=609occurred in iteration=15, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 1145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 56 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:21:31,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fdaca4-ef62-4161-9239-8dd6f74b18d8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE