./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:27:45,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:27:46,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:27:46,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:27:46,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:27:46,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:27:46,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:27:46,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:27:46,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:27:46,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:27:46,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:27:46,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:27:46,101 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:27:46,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:27:46,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:27:46,104 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:27:46,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:27:46,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:27:46,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:27:46,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:27:46,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:27:46,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:27:46,107 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:27:46,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:27:46,108 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:27:46,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:27:46,108 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:27:46,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:27:46,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:27:46,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:27:46,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:27:46,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:27:46,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:27:46,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:27:46,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:27:46,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:27:46,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:27:46,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:27:46,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:27:46,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:27:46,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:27:46,114 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_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2023-11-23 22:27:46,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:27:46,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:27:46,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:27:46,541 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:27:46,541 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:27:46,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-23 22:27:49,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:27:49,965 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:27:49,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-23 22:27:50,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/data/92eb22d86/b51a2bdf4be24833932072aa74938f31/FLAGa55bd81e1 [2023-11-23 22:27:50,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/data/92eb22d86/b51a2bdf4be24833932072aa74938f31 [2023-11-23 22:27:50,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:27:50,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:27:50,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:27:50,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:27:50,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:27:50,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112817b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50, skipping insertion in model container [2023-11-23 22:27:50,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:27:50,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:27:50,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:27:50,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:27:50,388 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:27:50,389 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:27:50,397 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:27:50,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50 WrapperNode [2023-11-23 22:27:50,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:27:50,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:27:50,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:27:50,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:27:50,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,483 INFO L138 Inliner]: procedures = 26, calls = 58, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 381 [2023-11-23 22:27:50,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:27:50,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:27:50,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:27:50,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:27:50,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:27:50,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:27:50,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:27:50,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:27:50,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (1/1) ... [2023-11-23 22:27:50,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:27:50,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:50,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:27:50,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:27:50,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:27:50,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:27:50,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:27:50,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:27:50,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:27:50,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:27:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:27:50,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:27:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:27:50,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:27:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:27:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:27:50,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:27:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:27:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:27:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:27:50,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:27:50,697 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:27:50,873 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:27:50,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:27:51,894 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:27:52,179 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:27:52,180 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 22:27:52,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:52 BoogieIcfgContainer [2023-11-23 22:27:52,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:27:52,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:27:52,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:27:52,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:27:52,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:27:50" (1/3) ... [2023-11-23 22:27:52,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888e3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:27:52, skipping insertion in model container [2023-11-23 22:27:52,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:50" (2/3) ... [2023-11-23 22:27:52,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888e3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:27:52, skipping insertion in model container [2023-11-23 22:27:52,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:52" (3/3) ... [2023-11-23 22:27:52,196 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2023-11-23 22:27:52,207 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:27:52,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:27:52,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-23 22:27:52,219 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:27:52,397 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 22:27:52,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 523 places, 540 transitions, 1101 flow [2023-11-23 22:27:52,707 INFO L124 PetriNetUnfolderBase]: 27/537 cut-off events. [2023-11-23 22:27:52,707 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 22:27:52,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 537 events. 27/537 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 659 event pairs, 0 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 428. Up to 2 conditions per place. [2023-11-23 22:27:52,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 523 places, 540 transitions, 1101 flow [2023-11-23 22:27:52,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 473 places, 487 transitions, 992 flow [2023-11-23 22:27:52,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:27:52,746 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=LoopHeads, 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;@36cae132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:27:52,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-11-23 22:27:52,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:27:52,752 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2023-11-23 22:27:52,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:27:52,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:52,753 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] [2023-11-23 22:27:52,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:52,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:52,759 INFO L85 PathProgramCache]: Analyzing trace with hash 557008994, now seen corresponding path program 1 times [2023-11-23 22:27:52,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:52,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342501063] [2023-11-23 22:27:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:52,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:53,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:53,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342501063] [2023-11-23 22:27:53,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342501063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:53,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:53,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438046945] [2023-11-23 22:27:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:53,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:53,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:53,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:53,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:53,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 540 [2023-11-23 22:27:53,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 487 transitions, 992 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:53,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:53,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 540 [2023-11-23 22:27:53,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:53,763 INFO L124 PetriNetUnfolderBase]: 101/1286 cut-off events. [2023-11-23 22:27:53,763 INFO L125 PetriNetUnfolderBase]: For 60/67 co-relation queries the response was YES. [2023-11-23 22:27:53,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 1286 events. 101/1286 cut-off events. For 60/67 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7273 event pairs, 51 based on Foata normal form. 12/1081 useless extension candidates. Maximal degree in co-relation 994. Up to 135 conditions per place. [2023-11-23 22:27:53,784 INFO L140 encePairwiseOnDemand]: 508/540 looper letters, 19 selfloop transitions, 2 changer transitions 9/457 dead transitions. [2023-11-23 22:27:53,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 457 transitions, 974 flow [2023-11-23 22:27:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:53,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:53,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1503 transitions. [2023-11-23 22:27:53,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9277777777777778 [2023-11-23 22:27:53,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1503 transitions. [2023-11-23 22:27:53,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1503 transitions. [2023-11-23 22:27:53,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:53,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1503 transitions. [2023-11-23 22:27:53,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:53,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:53,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:53,841 INFO L175 Difference]: Start difference. First operand has 473 places, 487 transitions, 992 flow. Second operand 3 states and 1503 transitions. [2023-11-23 22:27:53,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 457 transitions, 974 flow [2023-11-23 22:27:53,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 457 transitions, 962 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-23 22:27:53,917 INFO L231 Difference]: Finished difference. Result has 454 places, 448 transitions, 906 flow [2023-11-23 22:27:53,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=454, PETRI_TRANSITIONS=448} [2023-11-23 22:27:53,925 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -19 predicate places. [2023-11-23 22:27:53,925 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 448 transitions, 906 flow [2023-11-23 22:27:53,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:53,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:53,928 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] [2023-11-23 22:27:53,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:27:53,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:53,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:53,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1299489276, now seen corresponding path program 1 times [2023-11-23 22:27:53,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:53,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064766606] [2023-11-23 22:27:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:53,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:54,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:54,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064766606] [2023-11-23 22:27:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064766606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:54,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:54,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:54,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631405733] [2023-11-23 22:27:54,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:54,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:54,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:54,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:54,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 540 [2023-11-23 22:27:54,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 448 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:54,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:54,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 540 [2023-11-23 22:27:54,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:54,456 INFO L124 PetriNetUnfolderBase]: 223/1277 cut-off events. [2023-11-23 22:27:54,456 INFO L125 PetriNetUnfolderBase]: For 27/48 co-relation queries the response was YES. [2023-11-23 22:27:54,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 1277 events. 223/1277 cut-off events. For 27/48 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7001 event pairs, 128 based on Foata normal form. 0/1092 useless extension candidates. Maximal degree in co-relation 1565. Up to 299 conditions per place. [2023-11-23 22:27:54,474 INFO L140 encePairwiseOnDemand]: 532/540 looper letters, 23 selfloop transitions, 1 changer transitions 0/441 dead transitions. [2023-11-23 22:27:54,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 441 transitions, 940 flow [2023-11-23 22:27:54,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1459 transitions. [2023-11-23 22:27:54,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9006172839506172 [2023-11-23 22:27:54,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1459 transitions. [2023-11-23 22:27:54,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1459 transitions. [2023-11-23 22:27:54,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:54,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1459 transitions. [2023-11-23 22:27:54,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:54,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:54,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:54,495 INFO L175 Difference]: Start difference. First operand has 454 places, 448 transitions, 906 flow. Second operand 3 states and 1459 transitions. [2023-11-23 22:27:54,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 441 transitions, 940 flow [2023-11-23 22:27:54,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 441 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:27:54,508 INFO L231 Difference]: Finished difference. Result has 438 places, 441 transitions, 890 flow [2023-11-23 22:27:54,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=438, PETRI_TRANSITIONS=441} [2023-11-23 22:27:54,515 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -35 predicate places. [2023-11-23 22:27:54,515 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 441 transitions, 890 flow [2023-11-23 22:27:54,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:54,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:54,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:54,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:27:54,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:54,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1352816828, now seen corresponding path program 1 times [2023-11-23 22:27:54,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:54,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132204756] [2023-11-23 22:27:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:54,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:55,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:55,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132204756] [2023-11-23 22:27:55,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132204756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:27:55,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462668621] [2023-11-23 22:27:55,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:55,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:27:55,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:27:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:27:56,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 540 [2023-11-23 22:27:56,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 441 transitions, 890 flow. Second operand has 6 states, 6 states have (on average 413.5) internal successors, (2481), 6 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:56,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:56,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 540 [2023-11-23 22:27:56,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:57,328 INFO L124 PetriNetUnfolderBase]: 1202/4094 cut-off events. [2023-11-23 22:27:57,328 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-23 22:27:57,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5956 conditions, 4094 events. 1202/4094 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 35180 event pairs, 1084 based on Foata normal form. 0/3513 useless extension candidates. Maximal degree in co-relation 5924. Up to 1792 conditions per place. [2023-11-23 22:27:57,384 INFO L140 encePairwiseOnDemand]: 522/540 looper letters, 77 selfloop transitions, 15 changer transitions 0/438 dead transitions. [2023-11-23 22:27:57,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 438 transitions, 1068 flow [2023-11-23 22:27:57,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:27:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:27:57,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2567 transitions. [2023-11-23 22:27:57,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.792283950617284 [2023-11-23 22:27:57,395 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2567 transitions. [2023-11-23 22:27:57,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2567 transitions. [2023-11-23 22:27:57,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:57,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2567 transitions. [2023-11-23 22:27:57,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 427.8333333333333) internal successors, (2567), 6 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,422 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,422 INFO L175 Difference]: Start difference. First operand has 438 places, 441 transitions, 890 flow. Second operand 6 states and 2567 transitions. [2023-11-23 22:27:57,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 438 transitions, 1068 flow [2023-11-23 22:27:57,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 438 transitions, 1067 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:27:57,436 INFO L231 Difference]: Finished difference. Result has 439 places, 438 transitions, 913 flow [2023-11-23 22:27:57,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=439, PETRI_TRANSITIONS=438} [2023-11-23 22:27:57,439 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -34 predicate places. [2023-11-23 22:27:57,439 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 438 transitions, 913 flow [2023-11-23 22:27:57,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 413.5) internal successors, (2481), 6 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:57,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:57,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:27:57,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:57,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:57,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1189671245, now seen corresponding path program 1 times [2023-11-23 22:27:57,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:57,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170481465] [2023-11-23 22:27:57,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:57,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:57,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:57,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170481465] [2023-11-23 22:27:57,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170481465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:57,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:57,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:57,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269136346] [2023-11-23 22:27:57,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:57,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:57,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:57,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:57,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:57,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 540 [2023-11-23 22:27:57,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 438 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:57,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 540 [2023-11-23 22:27:57,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:57,789 INFO L124 PetriNetUnfolderBase]: 62/694 cut-off events. [2023-11-23 22:27:57,790 INFO L125 PetriNetUnfolderBase]: For 11/12 co-relation queries the response was YES. [2023-11-23 22:27:57,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 694 events. 62/694 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2449 event pairs, 34 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 772. Up to 81 conditions per place. [2023-11-23 22:27:57,799 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 16 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2023-11-23 22:27:57,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 437 transitions, 947 flow [2023-11-23 22:27:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1480 transitions. [2023-11-23 22:27:57,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9135802469135802 [2023-11-23 22:27:57,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1480 transitions. [2023-11-23 22:27:57,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1480 transitions. [2023-11-23 22:27:57,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:57,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1480 transitions. [2023-11-23 22:27:57,816 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) [2023-11-23 22:27:57,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,824 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,824 INFO L175 Difference]: Start difference. First operand has 439 places, 438 transitions, 913 flow. Second operand 3 states and 1480 transitions. [2023-11-23 22:27:57,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 437 transitions, 947 flow [2023-11-23 22:27:57,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 437 transitions, 917 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:27:57,843 INFO L231 Difference]: Finished difference. Result has 435 places, 437 transitions, 885 flow [2023-11-23 22:27:57,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=885, PETRI_PLACES=435, PETRI_TRANSITIONS=437} [2023-11-23 22:27:57,847 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -38 predicate places. [2023-11-23 22:27:57,847 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 437 transitions, 885 flow [2023-11-23 22:27:57,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:57,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:57,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:27:57,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:57,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:57,851 INFO L85 PathProgramCache]: Analyzing trace with hash 463034953, now seen corresponding path program 1 times [2023-11-23 22:27:57,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:57,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737518433] [2023-11-23 22:27:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:57,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:57,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:57,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737518433] [2023-11-23 22:27:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737518433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:57,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:57,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130129747] [2023-11-23 22:27:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:57,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:57,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:57,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 540 [2023-11-23 22:27:57,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 437 transitions, 885 flow. Second operand has 3 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:57,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:57,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 540 [2023-11-23 22:27:57,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:58,220 INFO L124 PetriNetUnfolderBase]: 62/693 cut-off events. [2023-11-23 22:27:58,220 INFO L125 PetriNetUnfolderBase]: For 11/12 co-relation queries the response was YES. [2023-11-23 22:27:58,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 693 events. 62/693 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2444 event pairs, 34 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 758. Up to 81 conditions per place. [2023-11-23 22:27:58,228 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 16 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2023-11-23 22:27:58,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 436 transitions, 919 flow [2023-11-23 22:27:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:58,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1480 transitions. [2023-11-23 22:27:58,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9135802469135802 [2023-11-23 22:27:58,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1480 transitions. [2023-11-23 22:27:58,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1480 transitions. [2023-11-23 22:27:58,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:58,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1480 transitions. [2023-11-23 22:27:58,240 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) [2023-11-23 22:27:58,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,248 INFO L175 Difference]: Start difference. First operand has 435 places, 437 transitions, 885 flow. Second operand 3 states and 1480 transitions. [2023-11-23 22:27:58,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 436 transitions, 919 flow [2023-11-23 22:27:58,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 436 transitions, 915 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:27:58,259 INFO L231 Difference]: Finished difference. Result has 434 places, 436 transitions, 883 flow [2023-11-23 22:27:58,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=883, PETRI_PLACES=434, PETRI_TRANSITIONS=436} [2023-11-23 22:27:58,261 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -39 predicate places. [2023-11-23 22:27:58,262 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 436 transitions, 883 flow [2023-11-23 22:27:58,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:58,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:58,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:27:58,264 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:58,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:58,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1765892961, now seen corresponding path program 1 times [2023-11-23 22:27:58,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:58,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859399205] [2023-11-23 22:27:58,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:58,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:58,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:58,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859399205] [2023-11-23 22:27:58,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859399205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:58,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:58,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981354502] [2023-11-23 22:27:58,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:58,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:58,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:58,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:58,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 540 [2023-11-23 22:27:58,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 436 transitions, 883 flow. Second operand has 3 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) [2023-11-23 22:27:58,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:58,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 540 [2023-11-23 22:27:58,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:58,494 INFO L124 PetriNetUnfolderBase]: 30/528 cut-off events. [2023-11-23 22:27:58,495 INFO L125 PetriNetUnfolderBase]: For 11/12 co-relation queries the response was YES. [2023-11-23 22:27:58,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 528 events. 30/528 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1139 event pairs, 12 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 545. Up to 39 conditions per place. [2023-11-23 22:27:58,501 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 12 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2023-11-23 22:27:58,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 435 transitions, 909 flow [2023-11-23 22:27:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2023-11-23 22:27:58,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9185185185185185 [2023-11-23 22:27:58,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2023-11-23 22:27:58,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2023-11-23 22:27:58,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:58,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2023-11-23 22:27:58,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,521 INFO L175 Difference]: Start difference. First operand has 434 places, 436 transitions, 883 flow. Second operand 3 states and 1488 transitions. [2023-11-23 22:27:58,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 435 transitions, 909 flow [2023-11-23 22:27:58,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 435 transitions, 905 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:27:58,533 INFO L231 Difference]: Finished difference. Result has 433 places, 435 transitions, 881 flow [2023-11-23 22:27:58,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=881, PETRI_PLACES=433, PETRI_TRANSITIONS=435} [2023-11-23 22:27:58,537 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -40 predicate places. [2023-11-23 22:27:58,538 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 435 transitions, 881 flow [2023-11-23 22:27:58,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-23 22:27:58,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:58,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:58,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:27:58,540 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:58,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:58,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1953883647, now seen corresponding path program 1 times [2023-11-23 22:27:58,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:58,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166356657] [2023-11-23 22:27:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:58,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:58,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166356657] [2023-11-23 22:27:58,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166356657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:58,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:58,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:58,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090834097] [2023-11-23 22:27:58,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:58,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:58,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:58,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 540 [2023-11-23 22:27:58,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 435 transitions, 881 flow. Second operand has 3 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) [2023-11-23 22:27:58,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:58,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 540 [2023-11-23 22:27:58,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:58,811 INFO L124 PetriNetUnfolderBase]: 30/527 cut-off events. [2023-11-23 22:27:58,811 INFO L125 PetriNetUnfolderBase]: For 11/12 co-relation queries the response was YES. [2023-11-23 22:27:58,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 527 events. 30/527 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1137 event pairs, 12 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 544. Up to 39 conditions per place. [2023-11-23 22:27:58,818 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 12 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-23 22:27:58,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 434 transitions, 907 flow [2023-11-23 22:27:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2023-11-23 22:27:58,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9185185185185185 [2023-11-23 22:27:58,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2023-11-23 22:27:58,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2023-11-23 22:27:58,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:58,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2023-11-23 22:27:58,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:58,858 INFO L175 Difference]: Start difference. First operand has 433 places, 435 transitions, 881 flow. Second operand 3 states and 1488 transitions. [2023-11-23 22:27:58,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 434 transitions, 907 flow [2023-11-23 22:27:58,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 434 transitions, 903 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:27:58,874 INFO L231 Difference]: Finished difference. Result has 432 places, 434 transitions, 879 flow [2023-11-23 22:27:58,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=879, PETRI_PLACES=432, PETRI_TRANSITIONS=434} [2023-11-23 22:27:58,876 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -41 predicate places. [2023-11-23 22:27:58,877 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 434 transitions, 879 flow [2023-11-23 22:27:58,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-23 22:27:58,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:58,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:58,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:27:58,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:58,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:58,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1545081816, now seen corresponding path program 1 times [2023-11-23 22:27:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:58,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373642625] [2023-11-23 22:27:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:58,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:58,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:58,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373642625] [2023-11-23 22:27:58,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373642625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:58,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:58,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:58,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280255497] [2023-11-23 22:27:58,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:58,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:58,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:59,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 540 [2023-11-23 22:27:59,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 434 transitions, 879 flow. Second operand has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:59,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:27:59,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 540 [2023-11-23 22:27:59,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:27:59,299 INFO L124 PetriNetUnfolderBase]: 116/1271 cut-off events. [2023-11-23 22:27:59,300 INFO L125 PetriNetUnfolderBase]: For 20/22 co-relation queries the response was YES. [2023-11-23 22:27:59,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 1271 events. 116/1271 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6750 event pairs, 56 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 1401. Up to 139 conditions per place. [2023-11-23 22:27:59,314 INFO L140 encePairwiseOnDemand]: 535/540 looper letters, 17 selfloop transitions, 1 changer transitions 0/430 dead transitions. [2023-11-23 22:27:59,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 430 transitions, 907 flow [2023-11-23 22:27:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:27:59,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1477 transitions. [2023-11-23 22:27:59,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9117283950617284 [2023-11-23 22:27:59,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1477 transitions. [2023-11-23 22:27:59,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1477 transitions. [2023-11-23 22:27:59,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:27:59,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1477 transitions. [2023-11-23 22:27:59,326 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) [2023-11-23 22:27:59,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:59,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:59,331 INFO L175 Difference]: Start difference. First operand has 432 places, 434 transitions, 879 flow. Second operand 3 states and 1477 transitions. [2023-11-23 22:27:59,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 430 transitions, 907 flow [2023-11-23 22:27:59,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 430 transitions, 903 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:27:59,343 INFO L231 Difference]: Finished difference. Result has 428 places, 430 transitions, 869 flow [2023-11-23 22:27:59,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=869, PETRI_PLACES=428, PETRI_TRANSITIONS=430} [2023-11-23 22:27:59,345 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -45 predicate places. [2023-11-23 22:27:59,345 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 430 transitions, 869 flow [2023-11-23 22:27:59,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:59,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:27:59,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:59,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:27:59,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:27:59,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1529096626, now seen corresponding path program 1 times [2023-11-23 22:27:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:59,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755521614] [2023-11-23 22:27:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:00,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:00,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:00,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755521614] [2023-11-23 22:28:00,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755521614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:00,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:00,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:00,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352455720] [2023-11-23 22:28:00,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:00,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:00,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:00,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 540 [2023-11-23 22:28:00,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 430 transitions, 869 flow. Second operand has 6 states, 6 states have (on average 473.1666666666667) internal successors, (2839), 6 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:00,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:00,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 540 [2023-11-23 22:28:00,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:01,102 INFO L124 PetriNetUnfolderBase]: 34/584 cut-off events. [2023-11-23 22:28:01,102 INFO L125 PetriNetUnfolderBase]: For 15/16 co-relation queries the response was YES. [2023-11-23 22:28:01,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 584 events. 34/584 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1408 event pairs, 4 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 631. Up to 43 conditions per place. [2023-11-23 22:28:01,108 INFO L140 encePairwiseOnDemand]: 533/540 looper letters, 35 selfloop transitions, 5 changer transitions 0/435 dead transitions. [2023-11-23 22:28:01,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 435 transitions, 963 flow [2023-11-23 22:28:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:01,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2874 transitions. [2023-11-23 22:28:01,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8870370370370371 [2023-11-23 22:28:01,119 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2874 transitions. [2023-11-23 22:28:01,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2874 transitions. [2023-11-23 22:28:01,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:01,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2874 transitions. [2023-11-23 22:28:01,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 479.0) internal successors, (2874), 6 states have internal predecessors, (2874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,142 INFO L175 Difference]: Start difference. First operand has 428 places, 430 transitions, 869 flow. Second operand 6 states and 2874 transitions. [2023-11-23 22:28:01,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 435 transitions, 963 flow [2023-11-23 22:28:01,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 435 transitions, 962 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:28:01,154 INFO L231 Difference]: Finished difference. Result has 431 places, 429 transitions, 880 flow [2023-11-23 22:28:01,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=880, PETRI_PLACES=431, PETRI_TRANSITIONS=429} [2023-11-23 22:28:01,156 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -42 predicate places. [2023-11-23 22:28:01,156 INFO L495 AbstractCegarLoop]: Abstraction has has 431 places, 429 transitions, 880 flow [2023-11-23 22:28:01,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 473.1666666666667) internal successors, (2839), 6 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:01,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:01,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:28:01,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:01,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1995819478, now seen corresponding path program 1 times [2023-11-23 22:28:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:01,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542442042] [2023-11-23 22:28:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:01,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542442042] [2023-11-23 22:28:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542442042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:01,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451687345] [2023-11-23 22:28:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:01,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:01,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:01,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:01,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 540 [2023-11-23 22:28:01,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 429 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:01,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 540 [2023-11-23 22:28:01,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:01,561 INFO L124 PetriNetUnfolderBase]: 99/1047 cut-off events. [2023-11-23 22:28:01,562 INFO L125 PetriNetUnfolderBase]: For 52/56 co-relation queries the response was YES. [2023-11-23 22:28:01,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 1047 events. 99/1047 cut-off events. For 52/56 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5120 event pairs, 36 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1197. Up to 118 conditions per place. [2023-11-23 22:28:01,573 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 16 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2023-11-23 22:28:01,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 428 transitions, 914 flow [2023-11-23 22:28:01,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:01,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2023-11-23 22:28:01,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9148148148148149 [2023-11-23 22:28:01,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2023-11-23 22:28:01,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2023-11-23 22:28:01,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:01,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2023-11-23 22:28:01,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,595 INFO L175 Difference]: Start difference. First operand has 431 places, 429 transitions, 880 flow. Second operand 3 states and 1482 transitions. [2023-11-23 22:28:01,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 428 transitions, 914 flow [2023-11-23 22:28:01,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 428 transitions, 906 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:28:01,607 INFO L231 Difference]: Finished difference. Result has 428 places, 428 transitions, 874 flow [2023-11-23 22:28:01,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=428, PETRI_TRANSITIONS=428} [2023-11-23 22:28:01,609 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -45 predicate places. [2023-11-23 22:28:01,610 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 428 transitions, 874 flow [2023-11-23 22:28:01,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:01,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:01,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:28:01,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:01,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:01,612 INFO L85 PathProgramCache]: Analyzing trace with hash 317947579, now seen corresponding path program 1 times [2023-11-23 22:28:01,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:01,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314004911] [2023-11-23 22:28:01,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:01,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:01,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314004911] [2023-11-23 22:28:01,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314004911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:01,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:01,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:01,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11039869] [2023-11-23 22:28:01,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:01,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:01,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:01,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 540 [2023-11-23 22:28:01,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 428 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:01,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:01,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 540 [2023-11-23 22:28:01,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:02,078 INFO L124 PetriNetUnfolderBase]: 135/1303 cut-off events. [2023-11-23 22:28:02,078 INFO L125 PetriNetUnfolderBase]: For 68/70 co-relation queries the response was YES. [2023-11-23 22:28:02,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 1303 events. 135/1303 cut-off events. For 68/70 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7056 event pairs, 58 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 1506. Up to 164 conditions per place. [2023-11-23 22:28:02,095 INFO L140 encePairwiseOnDemand]: 535/540 looper letters, 18 selfloop transitions, 1 changer transitions 0/424 dead transitions. [2023-11-23 22:28:02,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 424 transitions, 904 flow [2023-11-23 22:28:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1477 transitions. [2023-11-23 22:28:02,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9117283950617284 [2023-11-23 22:28:02,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1477 transitions. [2023-11-23 22:28:02,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1477 transitions. [2023-11-23 22:28:02,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:02,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1477 transitions. [2023-11-23 22:28:02,109 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) [2023-11-23 22:28:02,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:02,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:02,115 INFO L175 Difference]: Start difference. First operand has 428 places, 428 transitions, 874 flow. Second operand 3 states and 1477 transitions. [2023-11-23 22:28:02,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 424 transitions, 904 flow [2023-11-23 22:28:02,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 424 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:02,129 INFO L231 Difference]: Finished difference. Result has 424 places, 424 transitions, 864 flow [2023-11-23 22:28:02,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=424, PETRI_TRANSITIONS=424} [2023-11-23 22:28:02,131 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -49 predicate places. [2023-11-23 22:28:02,131 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 424 transitions, 864 flow [2023-11-23 22:28:02,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:02,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:02,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:02,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:28:02,133 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:02,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1967719178, now seen corresponding path program 1 times [2023-11-23 22:28:02,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:02,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248561162] [2023-11-23 22:28:02,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:02,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:02,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:02,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248561162] [2023-11-23 22:28:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248561162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:02,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:02,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926322984] [2023-11-23 22:28:02,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:02,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:03,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 540 [2023-11-23 22:28:03,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 424 transitions, 864 flow. Second operand has 6 states, 6 states have (on average 473.1666666666667) internal successors, (2839), 6 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:03,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:03,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 540 [2023-11-23 22:28:03,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:03,856 INFO L124 PetriNetUnfolderBase]: 37/586 cut-off events. [2023-11-23 22:28:03,856 INFO L125 PetriNetUnfolderBase]: For 30/32 co-relation queries the response was YES. [2023-11-23 22:28:03,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 586 events. 37/586 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1419 event pairs, 4 based on Foata normal form. 1/545 useless extension candidates. Maximal degree in co-relation 652. Up to 46 conditions per place. [2023-11-23 22:28:03,868 INFO L140 encePairwiseOnDemand]: 533/540 looper letters, 35 selfloop transitions, 5 changer transitions 0/428 dead transitions. [2023-11-23 22:28:03,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 428 transitions, 956 flow [2023-11-23 22:28:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2874 transitions. [2023-11-23 22:28:03,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8870370370370371 [2023-11-23 22:28:03,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2874 transitions. [2023-11-23 22:28:03,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2874 transitions. [2023-11-23 22:28:03,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:03,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2874 transitions. [2023-11-23 22:28:03,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 479.0) internal successors, (2874), 6 states have internal predecessors, (2874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:03,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:03,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:03,901 INFO L175 Difference]: Start difference. First operand has 424 places, 424 transitions, 864 flow. Second operand 6 states and 2874 transitions. [2023-11-23 22:28:03,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 428 transitions, 956 flow [2023-11-23 22:28:03,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 428 transitions, 955 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:28:03,912 INFO L231 Difference]: Finished difference. Result has 426 places, 422 transitions, 869 flow [2023-11-23 22:28:03,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=426, PETRI_TRANSITIONS=422} [2023-11-23 22:28:03,915 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -47 predicate places. [2023-11-23 22:28:03,915 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 422 transitions, 869 flow [2023-11-23 22:28:03,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 473.1666666666667) internal successors, (2839), 6 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:03,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:03,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:03,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:28:03,917 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:03,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:03,918 INFO L85 PathProgramCache]: Analyzing trace with hash -708171989, now seen corresponding path program 1 times [2023-11-23 22:28:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:03,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231308492] [2023-11-23 22:28:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:03,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:03,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231308492] [2023-11-23 22:28:03,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231308492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:03,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:03,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:03,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534502597] [2023-11-23 22:28:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:03,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:04,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 540 [2023-11-23 22:28:04,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 422 transitions, 869 flow. Second operand has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:04,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 540 [2023-11-23 22:28:04,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:04,274 INFO L124 PetriNetUnfolderBase]: 79/750 cut-off events. [2023-11-23 22:28:04,275 INFO L125 PetriNetUnfolderBase]: For 76/78 co-relation queries the response was YES. [2023-11-23 22:28:04,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 750 events. 79/750 cut-off events. For 76/78 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2839 event pairs, 36 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 888. Up to 104 conditions per place. [2023-11-23 22:28:04,282 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 16 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2023-11-23 22:28:04,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 421 transitions, 903 flow [2023-11-23 22:28:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2023-11-23 22:28:04,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9148148148148149 [2023-11-23 22:28:04,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2023-11-23 22:28:04,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2023-11-23 22:28:04,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:04,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2023-11-23 22:28:04,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,301 INFO L175 Difference]: Start difference. First operand has 426 places, 422 transitions, 869 flow. Second operand 3 states and 1482 transitions. [2023-11-23 22:28:04,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 421 transitions, 903 flow [2023-11-23 22:28:04,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 421 transitions, 893 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:28:04,312 INFO L231 Difference]: Finished difference. Result has 422 places, 421 transitions, 861 flow [2023-11-23 22:28:04,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=422, PETRI_TRANSITIONS=421} [2023-11-23 22:28:04,314 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -51 predicate places. [2023-11-23 22:28:04,314 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 421 transitions, 861 flow [2023-11-23 22:28:04,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:04,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:04,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:28:04,316 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:04,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:04,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2113578840, now seen corresponding path program 1 times [2023-11-23 22:28:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367823168] [2023-11-23 22:28:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:04,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:04,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:04,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367823168] [2023-11-23 22:28:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367823168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:04,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:04,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:04,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874621689] [2023-11-23 22:28:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:04,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:04,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:04,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 540 [2023-11-23 22:28:04,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 421 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:04,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 540 [2023-11-23 22:28:04,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:04,591 INFO L124 PetriNetUnfolderBase]: 41/563 cut-off events. [2023-11-23 22:28:04,591 INFO L125 PetriNetUnfolderBase]: For 30/32 co-relation queries the response was YES. [2023-11-23 22:28:04,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 563 events. 41/563 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1320 event pairs, 14 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 614. Up to 56 conditions per place. [2023-11-23 22:28:04,596 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 14 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2023-11-23 22:28:04,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 420 transitions, 891 flow [2023-11-23 22:28:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1486 transitions. [2023-11-23 22:28:04,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.917283950617284 [2023-11-23 22:28:04,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1486 transitions. [2023-11-23 22:28:04,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1486 transitions. [2023-11-23 22:28:04,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:04,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1486 transitions. [2023-11-23 22:28:04,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,614 INFO L175 Difference]: Start difference. First operand has 422 places, 421 transitions, 861 flow. Second operand 3 states and 1486 transitions. [2023-11-23 22:28:04,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 420 transitions, 891 flow [2023-11-23 22:28:04,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 420 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:04,625 INFO L231 Difference]: Finished difference. Result has 421 places, 420 transitions, 859 flow [2023-11-23 22:28:04,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=859, PETRI_PLACES=421, PETRI_TRANSITIONS=420} [2023-11-23 22:28:04,627 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -52 predicate places. [2023-11-23 22:28:04,627 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 420 transitions, 859 flow [2023-11-23 22:28:04,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:04,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:04,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:28:04,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:04,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:04,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2127694554, now seen corresponding path program 1 times [2023-11-23 22:28:04,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:04,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150317287] [2023-11-23 22:28:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:04,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:04,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:04,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150317287] [2023-11-23 22:28:04,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150317287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:04,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:04,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:04,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013951603] [2023-11-23 22:28:04,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:04,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:04,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:04,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:04,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 540 [2023-11-23 22:28:04,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 420 transitions, 859 flow. Second operand has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:04,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 540 [2023-11-23 22:28:04,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:05,230 INFO L124 PetriNetUnfolderBase]: 140/1609 cut-off events. [2023-11-23 22:28:05,230 INFO L125 PetriNetUnfolderBase]: For 80/87 co-relation queries the response was YES. [2023-11-23 22:28:05,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 1609 events. 140/1609 cut-off events. For 80/87 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9848 event pairs, 25 based on Foata normal form. 2/1436 useless extension candidates. Maximal degree in co-relation 1823. Up to 99 conditions per place. [2023-11-23 22:28:05,248 INFO L140 encePairwiseOnDemand]: 535/540 looper letters, 24 selfloop transitions, 3 changer transitions 0/429 dead transitions. [2023-11-23 22:28:05,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 429 transitions, 940 flow [2023-11-23 22:28:05,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1497 transitions. [2023-11-23 22:28:05,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.924074074074074 [2023-11-23 22:28:05,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1497 transitions. [2023-11-23 22:28:05,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1497 transitions. [2023-11-23 22:28:05,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:05,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1497 transitions. [2023-11-23 22:28:05,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 499.0) internal successors, (1497), 3 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:05,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:05,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:05,267 INFO L175 Difference]: Start difference. First operand has 421 places, 420 transitions, 859 flow. Second operand 3 states and 1497 transitions. [2023-11-23 22:28:05,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 429 transitions, 940 flow [2023-11-23 22:28:05,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 429 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:05,278 INFO L231 Difference]: Finished difference. Result has 420 places, 420 transitions, 868 flow [2023-11-23 22:28:05,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=868, PETRI_PLACES=420, PETRI_TRANSITIONS=420} [2023-11-23 22:28:05,281 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -53 predicate places. [2023-11-23 22:28:05,281 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 420 transitions, 868 flow [2023-11-23 22:28:05,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:05,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:05,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:05,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 22:28:05,283 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:05,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1432609460, now seen corresponding path program 1 times [2023-11-23 22:28:05,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:05,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908709557] [2023-11-23 22:28:05,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:05,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:05,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:05,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908709557] [2023-11-23 22:28:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908709557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:28:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716655216] [2023-11-23 22:28:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:05,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:28:05,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:28:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:28:06,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 540 [2023-11-23 22:28:06,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 420 transitions, 868 flow. Second operand has 7 states, 7 states have (on average 469.14285714285717) internal successors, (3284), 7 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:06,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:06,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 540 [2023-11-23 22:28:06,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:07,105 INFO L124 PetriNetUnfolderBase]: 276/2280 cut-off events. [2023-11-23 22:28:07,106 INFO L125 PetriNetUnfolderBase]: For 158/167 co-relation queries the response was YES. [2023-11-23 22:28:07,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 2280 events. 276/2280 cut-off events. For 158/167 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 12999 event pairs, 122 based on Foata normal form. 9/2083 useless extension candidates. Maximal degree in co-relation 2837. Up to 251 conditions per place. [2023-11-23 22:28:07,128 INFO L140 encePairwiseOnDemand]: 511/540 looper letters, 52 selfloop transitions, 42 changer transitions 0/471 dead transitions. [2023-11-23 22:28:07,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 471 transitions, 1174 flow [2023-11-23 22:28:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:28:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-23 22:28:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4742 transitions. [2023-11-23 22:28:07,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8781481481481481 [2023-11-23 22:28:07,144 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4742 transitions. [2023-11-23 22:28:07,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4742 transitions. [2023-11-23 22:28:07,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:07,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4742 transitions. [2023-11-23 22:28:07,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 474.2) internal successors, (4742), 10 states have internal predecessors, (4742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:07,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 540.0) internal successors, (5940), 11 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:07,179 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 540.0) internal successors, (5940), 11 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:07,180 INFO L175 Difference]: Start difference. First operand has 420 places, 420 transitions, 868 flow. Second operand 10 states and 4742 transitions. [2023-11-23 22:28:07,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 471 transitions, 1174 flow [2023-11-23 22:28:07,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 471 transitions, 1171 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:28:07,193 INFO L231 Difference]: Finished difference. Result has 432 places, 445 transitions, 1057 flow [2023-11-23 22:28:07,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1057, PETRI_PLACES=432, PETRI_TRANSITIONS=445} [2023-11-23 22:28:07,194 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -41 predicate places. [2023-11-23 22:28:07,195 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 445 transitions, 1057 flow [2023-11-23 22:28:07,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 469.14285714285717) internal successors, (3284), 7 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:07,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:07,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:07,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 22:28:07,199 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:07,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash 559502650, now seen corresponding path program 1 times [2023-11-23 22:28:07,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:07,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20167691] [2023-11-23 22:28:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:08,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:08,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20167691] [2023-11-23 22:28:08,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20167691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:08,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:08,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946855400] [2023-11-23 22:28:08,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:08,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:08,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:08,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 540 [2023-11-23 22:28:08,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 445 transitions, 1057 flow. Second operand has 6 states, 6 states have (on average 477.6666666666667) internal successors, (2866), 6 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:08,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:08,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 540 [2023-11-23 22:28:08,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:10,107 INFO L124 PetriNetUnfolderBase]: 339/2019 cut-off events. [2023-11-23 22:28:10,107 INFO L125 PetriNetUnfolderBase]: For 214/556 co-relation queries the response was YES. [2023-11-23 22:28:10,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2808 conditions, 2019 events. 339/2019 cut-off events. For 214/556 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9793 event pairs, 15 based on Foata normal form. 9/1858 useless extension candidates. Maximal degree in co-relation 2765. Up to 321 conditions per place. [2023-11-23 22:28:10,138 INFO L140 encePairwiseOnDemand]: 533/540 looper letters, 40 selfloop transitions, 13 changer transitions 0/468 dead transitions. [2023-11-23 22:28:10,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 468 transitions, 1228 flow [2023-11-23 22:28:10,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2905 transitions. [2023-11-23 22:28:10,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8966049382716049 [2023-11-23 22:28:10,149 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2905 transitions. [2023-11-23 22:28:10,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2905 transitions. [2023-11-23 22:28:10,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:10,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2905 transitions. [2023-11-23 22:28:10,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 484.1666666666667) internal successors, (2905), 6 states have internal predecessors, (2905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:10,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:10,166 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:10,166 INFO L175 Difference]: Start difference. First operand has 432 places, 445 transitions, 1057 flow. Second operand 6 states and 2905 transitions. [2023-11-23 22:28:10,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 468 transitions, 1228 flow [2023-11-23 22:28:10,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 468 transitions, 1228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:10,182 INFO L231 Difference]: Finished difference. Result has 442 places, 457 transitions, 1163 flow [2023-11-23 22:28:10,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1163, PETRI_PLACES=442, PETRI_TRANSITIONS=457} [2023-11-23 22:28:10,183 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -31 predicate places. [2023-11-23 22:28:10,183 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 457 transitions, 1163 flow [2023-11-23 22:28:10,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 477.6666666666667) internal successors, (2866), 6 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:10,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:10,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:10,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 22:28:10,185 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:10,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1102227775, now seen corresponding path program 1 times [2023-11-23 22:28:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927167009] [2023-11-23 22:28:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927167009] [2023-11-23 22:28:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927167009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:28:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025699161] [2023-11-23 22:28:10,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:10,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:28:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:28:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:28:10,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 540 [2023-11-23 22:28:10,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 457 transitions, 1163 flow. Second operand has 7 states, 7 states have (on average 469.57142857142856) internal successors, (3287), 7 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:10,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:10,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 540 [2023-11-23 22:28:10,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:11,930 INFO L124 PetriNetUnfolderBase]: 326/1951 cut-off events. [2023-11-23 22:28:11,931 INFO L125 PetriNetUnfolderBase]: For 430/792 co-relation queries the response was YES. [2023-11-23 22:28:11,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2891 conditions, 1951 events. 326/1951 cut-off events. For 430/792 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10922 event pairs, 189 based on Foata normal form. 7/1813 useless extension candidates. Maximal degree in co-relation 2843. Up to 445 conditions per place. [2023-11-23 22:28:11,973 INFO L140 encePairwiseOnDemand]: 511/540 looper letters, 56 selfloop transitions, 42 changer transitions 0/481 dead transitions. [2023-11-23 22:28:11,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 481 transitions, 1435 flow [2023-11-23 22:28:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:28:11,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-23 22:28:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4740 transitions. [2023-11-23 22:28:11,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2023-11-23 22:28:11,987 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4740 transitions. [2023-11-23 22:28:11,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4740 transitions. [2023-11-23 22:28:11,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:11,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4740 transitions. [2023-11-23 22:28:11,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 474.0) internal successors, (4740), 10 states have internal predecessors, (4740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:12,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 540.0) internal successors, (5940), 11 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:12,010 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 540.0) internal successors, (5940), 11 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:12,011 INFO L175 Difference]: Start difference. First operand has 442 places, 457 transitions, 1163 flow. Second operand 10 states and 4740 transitions. [2023-11-23 22:28:12,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 481 transitions, 1435 flow [2023-11-23 22:28:12,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 481 transitions, 1435 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:12,024 INFO L231 Difference]: Finished difference. Result has 453 places, 459 transitions, 1268 flow [2023-11-23 22:28:12,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1163, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1268, PETRI_PLACES=453, PETRI_TRANSITIONS=459} [2023-11-23 22:28:12,026 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -20 predicate places. [2023-11-23 22:28:12,026 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 459 transitions, 1268 flow [2023-11-23 22:28:12,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 469.57142857142856) internal successors, (3287), 7 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:12,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:12,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:12,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 22:28:12,028 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:12,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1589939521, now seen corresponding path program 1 times [2023-11-23 22:28:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:12,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464332441] [2023-11-23 22:28:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:13,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464332441] [2023-11-23 22:28:13,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464332441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:13,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:13,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695053326] [2023-11-23 22:28:13,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:13,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:13,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:13,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:13,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 540 [2023-11-23 22:28:13,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 459 transitions, 1268 flow. Second operand has 6 states, 6 states have (on average 477.8333333333333) internal successors, (2867), 6 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:13,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:13,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 540 [2023-11-23 22:28:13,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:14,980 INFO L124 PetriNetUnfolderBase]: 417/2128 cut-off events. [2023-11-23 22:28:14,980 INFO L125 PetriNetUnfolderBase]: For 1007/1129 co-relation queries the response was YES. [2023-11-23 22:28:15,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 2128 events. 417/2128 cut-off events. For 1007/1129 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10942 event pairs, 61 based on Foata normal form. 24/2039 useless extension candidates. Maximal degree in co-relation 3499. Up to 382 conditions per place. [2023-11-23 22:28:15,022 INFO L140 encePairwiseOnDemand]: 533/540 looper letters, 47 selfloop transitions, 17 changer transitions 0/485 dead transitions. [2023-11-23 22:28:15,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 485 transitions, 1514 flow [2023-11-23 22:28:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2904 transitions. [2023-11-23 22:28:15,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8962962962962963 [2023-11-23 22:28:15,032 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2904 transitions. [2023-11-23 22:28:15,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2904 transitions. [2023-11-23 22:28:15,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:15,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2904 transitions. [2023-11-23 22:28:15,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 484.0) internal successors, (2904), 6 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:15,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:15,047 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:15,048 INFO L175 Difference]: Start difference. First operand has 453 places, 459 transitions, 1268 flow. Second operand 6 states and 2904 transitions. [2023-11-23 22:28:15,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 485 transitions, 1514 flow [2023-11-23 22:28:15,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 485 transitions, 1441 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-23 22:28:15,120 INFO L231 Difference]: Finished difference. Result has 456 places, 475 transitions, 1375 flow [2023-11-23 22:28:15,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1375, PETRI_PLACES=456, PETRI_TRANSITIONS=475} [2023-11-23 22:28:15,121 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -17 predicate places. [2023-11-23 22:28:15,121 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 475 transitions, 1375 flow [2023-11-23 22:28:15,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 477.8333333333333) internal successors, (2867), 6 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:15,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:15,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:15,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 22:28:15,123 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:15,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash 820324479, now seen corresponding path program 1 times [2023-11-23 22:28:15,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245893037] [2023-11-23 22:28:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:15,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:16,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245893037] [2023-11-23 22:28:16,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245893037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:16,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:16,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:16,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185820483] [2023-11-23 22:28:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:16,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:16,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 540 [2023-11-23 22:28:16,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 475 transitions, 1375 flow. Second operand has 6 states, 6 states have (on average 478.0) internal successors, (2868), 6 states have internal predecessors, (2868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:16,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:16,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 540 [2023-11-23 22:28:16,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:17,546 INFO L124 PetriNetUnfolderBase]: 422/2117 cut-off events. [2023-11-23 22:28:17,546 INFO L125 PetriNetUnfolderBase]: For 1950/2046 co-relation queries the response was YES. [2023-11-23 22:28:17,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 2117 events. 422/2117 cut-off events. For 1950/2046 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11138 event pairs, 71 based on Foata normal form. 0/2022 useless extension candidates. Maximal degree in co-relation 3865. Up to 382 conditions per place. [2023-11-23 22:28:17,578 INFO L140 encePairwiseOnDemand]: 535/540 looper letters, 53 selfloop transitions, 4 changer transitions 0/482 dead transitions. [2023-11-23 22:28:17,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 482 transitions, 1503 flow [2023-11-23 22:28:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2023-11-23 22:28:17,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8929012345679013 [2023-11-23 22:28:17,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2893 transitions. [2023-11-23 22:28:17,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2893 transitions. [2023-11-23 22:28:17,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:17,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2893 transitions. [2023-11-23 22:28:17,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 482.1666666666667) internal successors, (2893), 6 states have internal predecessors, (2893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:17,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:17,601 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:17,601 INFO L175 Difference]: Start difference. First operand has 456 places, 475 transitions, 1375 flow. Second operand 6 states and 2893 transitions. [2023-11-23 22:28:17,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 482 transitions, 1503 flow [2023-11-23 22:28:17,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 482 transitions, 1503 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:17,618 INFO L231 Difference]: Finished difference. Result has 460 places, 474 transitions, 1381 flow [2023-11-23 22:28:17,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1373, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1381, PETRI_PLACES=460, PETRI_TRANSITIONS=474} [2023-11-23 22:28:17,620 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, -13 predicate places. [2023-11-23 22:28:17,620 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 474 transitions, 1381 flow [2023-11-23 22:28:17,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 478.0) internal successors, (2868), 6 states have internal predecessors, (2868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:17,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:17,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:17,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 22:28:17,622 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:17,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1790254002, now seen corresponding path program 1 times [2023-11-23 22:28:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:17,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706780055] [2023-11-23 22:28:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:28:18,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:18,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706780055] [2023-11-23 22:28:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706780055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:28:18,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116012895] [2023-11-23 22:28:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:18,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:18,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:18,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:18,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:28:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:18,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:28:18,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:28:18,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:28:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:28:19,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116012895] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:28:19,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:28:19,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-11-23 22:28:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712047788] [2023-11-23 22:28:19,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:28:19,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 22:28:19,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:19,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 22:28:19,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:28:21,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 540 [2023-11-23 22:28:21,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 474 transitions, 1381 flow. Second operand has 19 states, 19 states have (on average 458.1578947368421) internal successors, (8705), 19 states have internal predecessors, (8705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:21,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:21,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 540 [2023-11-23 22:28:21,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:23,951 INFO L124 PetriNetUnfolderBase]: 1567/6952 cut-off events. [2023-11-23 22:28:23,952 INFO L125 PetriNetUnfolderBase]: For 7641/7771 co-relation queries the response was YES. [2023-11-23 22:28:24,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13428 conditions, 6952 events. 1567/6952 cut-off events. For 7641/7771 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 55335 event pairs, 405 based on Foata normal form. 28/6432 useless extension candidates. Maximal degree in co-relation 13370. Up to 1052 conditions per place. [2023-11-23 22:28:24,069 INFO L140 encePairwiseOnDemand]: 501/540 looper letters, 138 selfloop transitions, 91 changer transitions 0/605 dead transitions. [2023-11-23 22:28:24,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 605 transitions, 2507 flow [2023-11-23 22:28:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 22:28:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-23 22:28:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 8797 transitions. [2023-11-23 22:28:24,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2023-11-23 22:28:24,088 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 8797 transitions. [2023-11-23 22:28:24,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 8797 transitions. [2023-11-23 22:28:24,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:24,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 8797 transitions. [2023-11-23 22:28:24,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 463.0) internal successors, (8797), 19 states have internal predecessors, (8797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:24,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 540.0) internal successors, (10800), 20 states have internal predecessors, (10800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:24,123 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 540.0) internal successors, (10800), 20 states have internal predecessors, (10800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:24,123 INFO L175 Difference]: Start difference. First operand has 460 places, 474 transitions, 1381 flow. Second operand 19 states and 8797 transitions. [2023-11-23 22:28:24,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 605 transitions, 2507 flow [2023-11-23 22:28:24,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 605 transitions, 2500 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:28:24,153 INFO L231 Difference]: Finished difference. Result has 485 places, 521 transitions, 1910 flow [2023-11-23 22:28:24,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1910, PETRI_PLACES=485, PETRI_TRANSITIONS=521} [2023-11-23 22:28:24,155 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, 12 predicate places. [2023-11-23 22:28:24,155 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 521 transitions, 1910 flow [2023-11-23 22:28:24,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 458.1578947368421) internal successors, (8705), 19 states have internal predecessors, (8705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:24,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:24,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:24,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:24,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 22:28:24,380 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:24,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:24,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1527833844, now seen corresponding path program 1 times [2023-11-23 22:28:24,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:24,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223482863] [2023-11-23 22:28:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:24,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:24,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:24,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223482863] [2023-11-23 22:28:24,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223482863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:24,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:24,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:24,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083674697] [2023-11-23 22:28:24,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:24,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:24,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:24,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:24,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 540 [2023-11-23 22:28:24,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 521 transitions, 1910 flow. Second operand has 3 states, 3 states have (on average 497.0) internal successors, (1491), 3 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:24,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:24,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 540 [2023-11-23 22:28:24,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:25,489 INFO L124 PetriNetUnfolderBase]: 473/3022 cut-off events. [2023-11-23 22:28:25,490 INFO L125 PetriNetUnfolderBase]: For 3376/3485 co-relation queries the response was YES. [2023-11-23 22:28:25,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5746 conditions, 3022 events. 473/3022 cut-off events. For 3376/3485 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16952 event pairs, 111 based on Foata normal form. 0/2902 useless extension candidates. Maximal degree in co-relation 5676. Up to 564 conditions per place. [2023-11-23 22:28:25,524 INFO L140 encePairwiseOnDemand]: 538/540 looper letters, 32 selfloop transitions, 1 changer transitions 0/520 dead transitions. [2023-11-23 22:28:25,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 520 transitions, 1974 flow [2023-11-23 22:28:25,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:25,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1495 transitions. [2023-11-23 22:28:25,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9228395061728395 [2023-11-23 22:28:25,529 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1495 transitions. [2023-11-23 22:28:25,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1495 transitions. [2023-11-23 22:28:25,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:25,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1495 transitions. [2023-11-23 22:28:25,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 498.3333333333333) internal successors, (1495), 3 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:25,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:25,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:25,534 INFO L175 Difference]: Start difference. First operand has 485 places, 521 transitions, 1910 flow. Second operand 3 states and 1495 transitions. [2023-11-23 22:28:25,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 520 transitions, 1974 flow [2023-11-23 22:28:25,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 520 transitions, 1926 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:25,559 INFO L231 Difference]: Finished difference. Result has 486 places, 520 transitions, 1862 flow [2023-11-23 22:28:25,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1860, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1862, PETRI_PLACES=486, PETRI_TRANSITIONS=520} [2023-11-23 22:28:25,561 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, 13 predicate places. [2023-11-23 22:28:25,561 INFO L495 AbstractCegarLoop]: Abstraction has has 486 places, 520 transitions, 1862 flow [2023-11-23 22:28:25,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 497.0) internal successors, (1491), 3 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:25,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:25,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:25,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-23 22:28:25,562 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:25,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:25,563 INFO L85 PathProgramCache]: Analyzing trace with hash -93321113, now seen corresponding path program 1 times [2023-11-23 22:28:25,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:25,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019568565] [2023-11-23 22:28:25,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:25,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:25,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019568565] [2023-11-23 22:28:25,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019568565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:25,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:25,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837995584] [2023-11-23 22:28:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:25,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:25,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:25,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:25,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 540 [2023-11-23 22:28:25,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 520 transitions, 1862 flow. Second operand has 3 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:25,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:25,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 540 [2023-11-23 22:28:25,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:27,952 INFO L124 PetriNetUnfolderBase]: 1201/7345 cut-off events. [2023-11-23 22:28:27,952 INFO L125 PetriNetUnfolderBase]: For 6993/7093 co-relation queries the response was YES. [2023-11-23 22:28:28,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13265 conditions, 7345 events. 1201/7345 cut-off events. For 6993/7093 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 65393 event pairs, 183 based on Foata normal form. 9/6937 useless extension candidates. Maximal degree in co-relation 13194. Up to 770 conditions per place. [2023-11-23 22:28:28,062 INFO L140 encePairwiseOnDemand]: 535/540 looper letters, 60 selfloop transitions, 2 changer transitions 36/549 dead transitions. [2023-11-23 22:28:28,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 549 transitions, 2231 flow [2023-11-23 22:28:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:28,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1496 transitions. [2023-11-23 22:28:28,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9234567901234568 [2023-11-23 22:28:28,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1496 transitions. [2023-11-23 22:28:28,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1496 transitions. [2023-11-23 22:28:28,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:28,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1496 transitions. [2023-11-23 22:28:28,071 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) [2023-11-23 22:28:28,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:28,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:28,073 INFO L175 Difference]: Start difference. First operand has 486 places, 520 transitions, 1862 flow. Second operand 3 states and 1496 transitions. [2023-11-23 22:28:28,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 549 transitions, 2231 flow [2023-11-23 22:28:28,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 549 transitions, 2228 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-23 22:28:28,109 INFO L231 Difference]: Finished difference. Result has 486 places, 485 transitions, 1619 flow [2023-11-23 22:28:28,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1855, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1619, PETRI_PLACES=486, PETRI_TRANSITIONS=485} [2023-11-23 22:28:28,111 INFO L281 CegarLoopForPetriNet]: 473 programPoint places, 13 predicate places. [2023-11-23 22:28:28,112 INFO L495 AbstractCegarLoop]: Abstraction has has 486 places, 485 transitions, 1619 flow [2023-11-23 22:28:28,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:28,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:28,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:28,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 22:28:28,113 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-23 22:28:28,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:28,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1386049771, now seen corresponding path program 1 times [2023-11-23 22:28:28,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:28,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994122762] [2023-11-23 22:28:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:28,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:28:28,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994122762] [2023-11-23 22:28:28,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994122762] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:28:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078070991] [2023-11-23 22:28:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:28,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:28,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:28,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:28,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ffb9816-4be4-41b4-891f-1228ac85b74e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:28:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:28,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:28:28,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:28:29,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:28:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:28:29,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078070991] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:28:29,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:28:29,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-11-23 22:28:29,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184363858] [2023-11-23 22:28:29,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:28:29,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 22:28:29,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:29,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 22:28:29,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:28:30,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 540 [2023-11-23 22:28:30,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 485 transitions, 1619 flow. Second operand has 19 states, 19 states have (on average 458.3157894736842) internal successors, (8708), 19 states have internal predecessors, (8708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:30,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:30,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 540 [2023-11-23 22:28:30,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand