./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya --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 b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:04:55,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:04:55,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 01:04:55,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:04:55,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:04:55,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:04:55,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:04:55,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:04:55,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:04:55,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:04:55,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:04:55,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:04:55,807 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:04:55,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:04:55,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:04:55,808 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:04:55,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:04:55,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:04:55,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:04:55,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:04:55,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:04:55,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:04:55,812 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 01:04:55,813 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:04:55,813 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:04:55,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:04:55,814 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:04:55,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:04:55,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:04:55,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:04:55,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:04:55,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:04:55,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:04:55,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:04:55,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:04:55,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:04:55,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:04:55,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:04:55,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:04:55,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:04:55,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:04:55,818 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_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2023-11-29 01:04:56,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:04:56,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:04:56,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:04:56,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:04:56,063 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:04:56,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2023-11-29 01:04:58,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:04:59,012 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:04:59,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2023-11-29 01:04:59,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/data/248ff1883/0dd32df26d6344c1abffe1e67d24329d/FLAG0ac0dae62 [2023-11-29 01:04:59,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/data/248ff1883/0dd32df26d6344c1abffe1e67d24329d [2023-11-29 01:04:59,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:04:59,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:04:59,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:04:59,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:04:59,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:04:59,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a23c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59, skipping insertion in model container [2023-11-29 01:04:59,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:04:59,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:04:59,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:04:59,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:04:59,324 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:04:59,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59 WrapperNode [2023-11-29 01:04:59,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:04:59,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:04:59,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:04:59,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:04:59,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,383 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 299 [2023-11-29 01:04:59,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:04:59,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:04:59,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:04:59,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:04:59,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:04:59,436 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:04:59,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:04:59,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:04:59,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (1/1) ... [2023-11-29 01:04:59,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:04:59,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:59,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:04:59,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:04:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:04:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 01:04:59,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 01:04:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 01:04:59,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 01:04:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 01:04:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:04:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 01:04:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:04:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:04:59,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:04:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 01:04:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:04:59,509 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:04:59,618 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:04:59,620 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:05:00,093 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:05:00,109 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:05:00,110 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 01:05:00,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:00 BoogieIcfgContainer [2023-11-29 01:05:00,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:05:00,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:05:00,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:05:00,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:05:00,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:04:59" (1/3) ... [2023-11-29 01:05:00,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e19e1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:05:00, skipping insertion in model container [2023-11-29 01:05:00,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:04:59" (2/3) ... [2023-11-29 01:05:00,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e19e1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:05:00, skipping insertion in model container [2023-11-29 01:05:00,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:00" (3/3) ... [2023-11-29 01:05:00,121 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2023-11-29 01:05:00,130 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:05:00,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:05:00,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-29 01:05:00,141 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:05:00,297 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 01:05:00,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 366 transitions, 746 flow [2023-11-29 01:05:00,461 INFO L124 PetriNetUnfolderBase]: 19/364 cut-off events. [2023-11-29 01:05:00,461 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 01:05:00,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 364 events. 19/364 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 664 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 236. Up to 3 conditions per place. [2023-11-29 01:05:00,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 354 places, 366 transitions, 746 flow [2023-11-29 01:05:00,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 332 places, 343 transitions, 698 flow [2023-11-29 01:05:00,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:05:00,497 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;@333176b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:05:00,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 01:05:00,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:05:00,509 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2023-11-29 01:05:00,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:05:00,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:00,510 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] [2023-11-29 01:05:00,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:00,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1951804173, now seen corresponding path program 1 times [2023-11-29 01:05:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:00,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596121409] [2023-11-29 01:05:00,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:00,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:01,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:01,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596121409] [2023-11-29 01:05:01,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596121409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:01,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:01,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:01,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716753531] [2023-11-29 01:05:01,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:01,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:01,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:01,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:01,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:01,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 366 [2023-11-29 01:05:01,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 343 transitions, 698 flow. Second operand has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:01,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:01,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 366 [2023-11-29 01:05:01,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:03,975 INFO L124 PetriNetUnfolderBase]: 3073/11417 cut-off events. [2023-11-29 01:05:03,975 INFO L125 PetriNetUnfolderBase]: For 167/174 co-relation queries the response was YES. [2023-11-29 01:05:04,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15902 conditions, 11417 events. 3073/11417 cut-off events. For 167/174 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 115836 event pairs, 2528 based on Foata normal form. 486/10055 useless extension candidates. Maximal degree in co-relation 15023. Up to 4388 conditions per place. [2023-11-29 01:05:04,106 INFO L140 encePairwiseOnDemand]: 344/366 looper letters, 60 selfloop transitions, 10 changer transitions 4/331 dead transitions. [2023-11-29 01:05:04,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 331 transitions, 814 flow [2023-11-29 01:05:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:05:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1774 transitions. [2023-11-29 01:05:04,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.807832422586521 [2023-11-29 01:05:04,130 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1774 transitions. [2023-11-29 01:05:04,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1774 transitions. [2023-11-29 01:05:04,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:04,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1774 transitions. [2023-11-29 01:05:04,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.6666666666667) internal successors, (1774), 6 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,168 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,170 INFO L175 Difference]: Start difference. First operand has 332 places, 343 transitions, 698 flow. Second operand 6 states and 1774 transitions. [2023-11-29 01:05:04,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 331 transitions, 814 flow [2023-11-29 01:05:04,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 331 transitions, 806 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 01:05:04,196 INFO L231 Difference]: Finished difference. Result has 331 places, 327 transitions, 678 flow [2023-11-29 01:05:04,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=678, PETRI_PLACES=331, PETRI_TRANSITIONS=327} [2023-11-29 01:05:04,204 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -1 predicate places. [2023-11-29 01:05:04,205 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 327 transitions, 678 flow [2023-11-29 01:05:04,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:04,207 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] [2023-11-29 01:05:04,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:05:04,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:04,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1445971493, now seen corresponding path program 1 times [2023-11-29 01:05:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:04,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768692953] [2023-11-29 01:05:04,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:04,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:04,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:04,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768692953] [2023-11-29 01:05:04,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768692953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:04,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:04,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:04,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605241046] [2023-11-29 01:05:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:04,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:04,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:04,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:04,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:04,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 366 [2023-11-29 01:05:04,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 327 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:04,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 366 [2023-11-29 01:05:04,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:04,440 INFO L124 PetriNetUnfolderBase]: 22/534 cut-off events. [2023-11-29 01:05:04,441 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-29 01:05:04,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 534 events. 22/534 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1883 event pairs, 8 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 547. Up to 28 conditions per place. [2023-11-29 01:05:04,462 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 11 selfloop transitions, 2 changer transitions 0/326 dead transitions. [2023-11-29 01:05:04,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 326 transitions, 702 flow [2023-11-29 01:05:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1031 transitions. [2023-11-29 01:05:04,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9389799635701275 [2023-11-29 01:05:04,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1031 transitions. [2023-11-29 01:05:04,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1031 transitions. [2023-11-29 01:05:04,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:04,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1031 transitions. [2023-11-29 01:05:04,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,479 INFO L175 Difference]: Start difference. First operand has 331 places, 327 transitions, 678 flow. Second operand 3 states and 1031 transitions. [2023-11-29 01:05:04,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 326 transitions, 702 flow [2023-11-29 01:05:04,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 326 transitions, 682 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:05:04,489 INFO L231 Difference]: Finished difference. Result has 323 places, 326 transitions, 660 flow [2023-11-29 01:05:04,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=323, PETRI_TRANSITIONS=326} [2023-11-29 01:05:04,491 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -9 predicate places. [2023-11-29 01:05:04,491 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 326 transitions, 660 flow [2023-11-29 01:05:04,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:04,493 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] [2023-11-29 01:05:04,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:05:04,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:04,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:04,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1128172056, now seen corresponding path program 1 times [2023-11-29 01:05:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:04,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260977684] [2023-11-29 01:05:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:04,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:04,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260977684] [2023-11-29 01:05:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260977684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:04,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:04,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:04,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967527931] [2023-11-29 01:05:04,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:04,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:04,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:04,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:04,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:04,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 366 [2023-11-29 01:05:04,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 326 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:04,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 366 [2023-11-29 01:05:04,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:04,693 INFO L124 PetriNetUnfolderBase]: 22/533 cut-off events. [2023-11-29 01:05:04,693 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-29 01:05:04,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 533 events. 22/533 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1740 event pairs, 8 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 502. Up to 28 conditions per place. [2023-11-29 01:05:04,699 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 11 selfloop transitions, 2 changer transitions 0/325 dead transitions. [2023-11-29 01:05:04,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 325 transitions, 684 flow [2023-11-29 01:05:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1031 transitions. [2023-11-29 01:05:04,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9389799635701275 [2023-11-29 01:05:04,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1031 transitions. [2023-11-29 01:05:04,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1031 transitions. [2023-11-29 01:05:04,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:04,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1031 transitions. [2023-11-29 01:05:04,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,711 INFO L175 Difference]: Start difference. First operand has 323 places, 326 transitions, 660 flow. Second operand 3 states and 1031 transitions. [2023-11-29 01:05:04,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 325 transitions, 684 flow [2023-11-29 01:05:04,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 325 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:05:04,717 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 658 flow [2023-11-29 01:05:04,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2023-11-29 01:05:04,719 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -10 predicate places. [2023-11-29 01:05:04,719 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 658 flow [2023-11-29 01:05:04,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:04,721 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] [2023-11-29 01:05:04,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:05:04,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:04,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:04,722 INFO L85 PathProgramCache]: Analyzing trace with hash -746148377, now seen corresponding path program 1 times [2023-11-29 01:05:04,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:04,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924742418] [2023-11-29 01:05:04,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:04,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:04,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924742418] [2023-11-29 01:05:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924742418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:04,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:04,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141444850] [2023-11-29 01:05:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:04,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:04,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:04,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:04,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 366 [2023-11-29 01:05:04,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:04,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 366 [2023-11-29 01:05:04,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:04,877 INFO L124 PetriNetUnfolderBase]: 17/492 cut-off events. [2023-11-29 01:05:04,877 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 01:05:04,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 492 events. 17/492 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1607 event pairs, 3 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 401. Up to 16 conditions per place. [2023-11-29 01:05:04,881 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 9 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2023-11-29 01:05:04,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 324 transitions, 678 flow [2023-11-29 01:05:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2023-11-29 01:05:04,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9426229508196722 [2023-11-29 01:05:04,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2023-11-29 01:05:04,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2023-11-29 01:05:04,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:04,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2023-11-29 01:05:04,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,891 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 658 flow. Second operand 3 states and 1035 transitions. [2023-11-29 01:05:04,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 324 transitions, 678 flow [2023-11-29 01:05:04,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 324 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:05:04,896 INFO L231 Difference]: Finished difference. Result has 321 places, 324 transitions, 656 flow [2023-11-29 01:05:04,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=321, PETRI_TRANSITIONS=324} [2023-11-29 01:05:04,898 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -11 predicate places. [2023-11-29 01:05:04,898 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 324 transitions, 656 flow [2023-11-29 01:05:04,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:04,899 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] [2023-11-29 01:05:04,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:05:04,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:04,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash 10243285, now seen corresponding path program 1 times [2023-11-29 01:05:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:04,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583090362] [2023-11-29 01:05:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:04,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:04,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583090362] [2023-11-29 01:05:04,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583090362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:04,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:04,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:04,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975388921] [2023-11-29 01:05:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:04,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:04,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:04,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:04,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 366 [2023-11-29 01:05:04,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 324 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:04,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:04,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 366 [2023-11-29 01:05:04,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:05,027 INFO L124 PetriNetUnfolderBase]: 17/495 cut-off events. [2023-11-29 01:05:05,027 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 01:05:05,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 495 events. 17/495 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1440 event pairs, 3 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 396. Up to 16 conditions per place. [2023-11-29 01:05:05,031 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 9 selfloop transitions, 2 changer transitions 0/323 dead transitions. [2023-11-29 01:05:05,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 323 transitions, 676 flow [2023-11-29 01:05:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:05,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2023-11-29 01:05:05,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9426229508196722 [2023-11-29 01:05:05,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2023-11-29 01:05:05,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2023-11-29 01:05:05,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:05,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2023-11-29 01:05:05,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,045 INFO L175 Difference]: Start difference. First operand has 321 places, 324 transitions, 656 flow. Second operand 3 states and 1035 transitions. [2023-11-29 01:05:05,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 323 transitions, 676 flow [2023-11-29 01:05:05,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 323 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:05:05,051 INFO L231 Difference]: Finished difference. Result has 320 places, 323 transitions, 654 flow [2023-11-29 01:05:05,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=320, PETRI_TRANSITIONS=323} [2023-11-29 01:05:05,052 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -12 predicate places. [2023-11-29 01:05:05,052 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 323 transitions, 654 flow [2023-11-29 01:05:05,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:05,053 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] [2023-11-29 01:05:05,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:05:05,054 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:05,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:05,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1092067150, now seen corresponding path program 1 times [2023-11-29 01:05:05,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:05,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362614250] [2023-11-29 01:05:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:05,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:05,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:05,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362614250] [2023-11-29 01:05:05,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362614250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:05,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:05,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:05,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60200734] [2023-11-29 01:05:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:05,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:05,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:05,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 366 [2023-11-29 01:05:05,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 323 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:05,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 366 [2023-11-29 01:05:05,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:05,211 INFO L124 PetriNetUnfolderBase]: 31/715 cut-off events. [2023-11-29 01:05:05,212 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-29 01:05:05,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 715 events. 31/715 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3148 event pairs, 5 based on Foata normal form. 0/611 useless extension candidates. Maximal degree in co-relation 620. Up to 25 conditions per place. [2023-11-29 01:05:05,217 INFO L140 encePairwiseOnDemand]: 362/366 looper letters, 10 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2023-11-29 01:05:05,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 324 transitions, 681 flow [2023-11-29 01:05:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-29 01:05:05,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-29 01:05:05,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-29 01:05:05,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-29 01:05:05,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:05,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-29 01:05:05,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,227 INFO L175 Difference]: Start difference. First operand has 320 places, 323 transitions, 654 flow. Second operand 3 states and 1043 transitions. [2023-11-29 01:05:05,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 324 transitions, 681 flow [2023-11-29 01:05:05,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 324 transitions, 677 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:05:05,233 INFO L231 Difference]: Finished difference. Result has 319 places, 323 transitions, 660 flow [2023-11-29 01:05:05,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=319, PETRI_TRANSITIONS=323} [2023-11-29 01:05:05,234 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -13 predicate places. [2023-11-29 01:05:05,234 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 323 transitions, 660 flow [2023-11-29 01:05:05,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:05,235 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] [2023-11-29 01:05:05,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:05:05,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:05,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:05,236 INFO L85 PathProgramCache]: Analyzing trace with hash -886178973, now seen corresponding path program 1 times [2023-11-29 01:05:05,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:05,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641468550] [2023-11-29 01:05:05,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:05,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:05,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:05,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641468550] [2023-11-29 01:05:05,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641468550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:05,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:05,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:05,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315329672] [2023-11-29 01:05:05,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:05,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:05,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:05,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:05,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:05,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 366 [2023-11-29 01:05:05,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 323 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:05,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 366 [2023-11-29 01:05:05,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:05,379 INFO L124 PetriNetUnfolderBase]: 32/694 cut-off events. [2023-11-29 01:05:05,379 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 01:05:05,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 694 events. 32/694 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3364 event pairs, 3 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 524. Up to 26 conditions per place. [2023-11-29 01:05:05,383 INFO L140 encePairwiseOnDemand]: 362/366 looper letters, 10 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2023-11-29 01:05:05,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 324 transitions, 687 flow [2023-11-29 01:05:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:05,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-29 01:05:05,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-29 01:05:05,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-29 01:05:05,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-29 01:05:05,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:05,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-29 01:05:05,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,392 INFO L175 Difference]: Start difference. First operand has 319 places, 323 transitions, 660 flow. Second operand 3 states and 1043 transitions. [2023-11-29 01:05:05,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 324 transitions, 687 flow [2023-11-29 01:05:05,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 324 transitions, 687 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:05:05,397 INFO L231 Difference]: Finished difference. Result has 320 places, 323 transitions, 670 flow [2023-11-29 01:05:05,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=670, PETRI_PLACES=320, PETRI_TRANSITIONS=323} [2023-11-29 01:05:05,398 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -12 predicate places. [2023-11-29 01:05:05,399 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 323 transitions, 670 flow [2023-11-29 01:05:05,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:05,400 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] [2023-11-29 01:05:05,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:05:05,400 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:05,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:05,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1119093160, now seen corresponding path program 1 times [2023-11-29 01:05:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:05,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609734761] [2023-11-29 01:05:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:05,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:05,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:05,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609734761] [2023-11-29 01:05:05,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609734761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:05,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:05,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:05,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88723377] [2023-11-29 01:05:05,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:05,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:05:05,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:05,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:05:05,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:05:05,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 366 [2023-11-29 01:05:05,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 323 transitions, 670 flow. Second operand has 5 states, 5 states have (on average 335.6) internal successors, (1678), 5 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:05,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 366 [2023-11-29 01:05:05,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:05,725 INFO L124 PetriNetUnfolderBase]: 16/496 cut-off events. [2023-11-29 01:05:05,725 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-29 01:05:05,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 496 events. 16/496 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1595 event pairs, 0 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 323. Up to 10 conditions per place. [2023-11-29 01:05:05,727 INFO L140 encePairwiseOnDemand]: 352/366 looper letters, 12 selfloop transitions, 12 changer transitions 0/325 dead transitions. [2023-11-29 01:05:05,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 325 transitions, 722 flow [2023-11-29 01:05:05,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:05:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 01:05:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1686 transitions. [2023-11-29 01:05:05,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.921311475409836 [2023-11-29 01:05:05,732 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1686 transitions. [2023-11-29 01:05:05,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1686 transitions. [2023-11-29 01:05:05,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:05,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1686 transitions. [2023-11-29 01:05:05,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 337.2) internal successors, (1686), 5 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 366.0) internal successors, (2196), 6 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,740 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 366.0) internal successors, (2196), 6 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,740 INFO L175 Difference]: Start difference. First operand has 320 places, 323 transitions, 670 flow. Second operand 5 states and 1686 transitions. [2023-11-29 01:05:05,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 325 transitions, 722 flow [2023-11-29 01:05:05,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 325 transitions, 722 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:05:05,746 INFO L231 Difference]: Finished difference. Result has 325 places, 325 transitions, 710 flow [2023-11-29 01:05:05,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=710, PETRI_PLACES=325, PETRI_TRANSITIONS=325} [2023-11-29 01:05:05,747 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -7 predicate places. [2023-11-29 01:05:05,748 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 325 transitions, 710 flow [2023-11-29 01:05:05,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 335.6) internal successors, (1678), 5 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:05,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:05,749 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] [2023-11-29 01:05:05,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:05:05,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:05,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -698977606, now seen corresponding path program 1 times [2023-11-29 01:05:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099772416] [2023-11-29 01:05:05,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:05:05,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099772416] [2023-11-29 01:05:05,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099772416] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:05:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127029418] [2023-11-29 01:05:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:05,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:05,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:05,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:05,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:05:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:06,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:05:06,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:05:06,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:05:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:05:06,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127029418] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:05:06,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:05:06,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-29 01:05:06,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326160809] [2023-11-29 01:05:06,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:05:06,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:05:06,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:05:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:05:06,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-29 01:05:06,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 325 transitions, 710 flow. Second operand has 15 states, 15 states have (on average 328.73333333333335) internal successors, (4931), 15 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:06,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:06,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-29 01:05:06,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:06,967 INFO L124 PetriNetUnfolderBase]: 16/530 cut-off events. [2023-11-29 01:05:06,967 INFO L125 PetriNetUnfolderBase]: For 13/14 co-relation queries the response was YES. [2023-11-29 01:05:06,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 530 events. 16/530 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1541 event pairs, 0 based on Foata normal form. 4/480 useless extension candidates. Maximal degree in co-relation 397. Up to 10 conditions per place. [2023-11-29 01:05:06,971 INFO L140 encePairwiseOnDemand]: 346/366 looper letters, 20 selfloop transitions, 26 changer transitions 0/341 dead transitions. [2023-11-29 01:05:06,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 341 transitions, 838 flow [2023-11-29 01:05:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:05:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:05:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3636 transitions. [2023-11-29 01:05:06,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9031296572280179 [2023-11-29 01:05:06,982 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3636 transitions. [2023-11-29 01:05:06,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3636 transitions. [2023-11-29 01:05:06,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:06,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3636 transitions. [2023-11-29 01:05:06,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 330.54545454545456) internal successors, (3636), 11 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:07,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 366.0) internal successors, (4392), 12 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:07,005 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 366.0) internal successors, (4392), 12 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:07,005 INFO L175 Difference]: Start difference. First operand has 325 places, 325 transitions, 710 flow. Second operand 11 states and 3636 transitions. [2023-11-29 01:05:07,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 341 transitions, 838 flow [2023-11-29 01:05:07,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 341 transitions, 818 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 01:05:07,014 INFO L231 Difference]: Finished difference. Result has 335 places, 337 transitions, 810 flow [2023-11-29 01:05:07,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=810, PETRI_PLACES=335, PETRI_TRANSITIONS=337} [2023-11-29 01:05:07,015 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 3 predicate places. [2023-11-29 01:05:07,016 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 337 transitions, 810 flow [2023-11-29 01:05:07,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 328.73333333333335) internal successors, (4931), 15 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:07,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:07,018 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:07,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:07,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:07,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:07,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:07,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1416605946, now seen corresponding path program 2 times [2023-11-29 01:05:07,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:07,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703618072] [2023-11-29 01:05:07,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:07,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:07,650 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 01:05:07,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:07,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703618072] [2023-11-29 01:05:07,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703618072] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:05:07,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126124813] [2023-11-29 01:05:07,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:05:07,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:07,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:07,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:07,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:05:07,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:05:07,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:05:07,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:05:07,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:08,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:05:08,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 01:05:08,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:05:08,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-29 01:05:08,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:05:08,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-29 01:05:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 01:05:08,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:08,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126124813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:08,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:05:08,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2023-11-29 01:05:08,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780519051] [2023-11-29 01:05:08,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:08,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:05:08,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:08,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:05:08,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:05:08,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 366 [2023-11-29 01:05:08,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 337 transitions, 810 flow. Second operand has 7 states, 7 states have (on average 334.42857142857144) internal successors, (2341), 7 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:08,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:08,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 366 [2023-11-29 01:05:08,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:08,969 INFO L124 PetriNetUnfolderBase]: 16/529 cut-off events. [2023-11-29 01:05:08,969 INFO L125 PetriNetUnfolderBase]: For 15/26 co-relation queries the response was YES. [2023-11-29 01:05:08,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 529 events. 16/529 cut-off events. For 15/26 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1534 event pairs, 0 based on Foata normal form. 8/484 useless extension candidates. Maximal degree in co-relation 399. Up to 27 conditions per place. [2023-11-29 01:05:08,973 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 14 selfloop transitions, 5 changer transitions 0/336 dead transitions. [2023-11-29 01:05:08,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 336 transitions, 846 flow [2023-11-29 01:05:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:05:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 01:05:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2344 transitions. [2023-11-29 01:05:08,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9149102263856362 [2023-11-29 01:05:08,980 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2344 transitions. [2023-11-29 01:05:08,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2344 transitions. [2023-11-29 01:05:08,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:08,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2344 transitions. [2023-11-29 01:05:08,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 334.85714285714283) internal successors, (2344), 7 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:08,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 366.0) internal successors, (2928), 8 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:08,992 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 366.0) internal successors, (2928), 8 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:08,992 INFO L175 Difference]: Start difference. First operand has 335 places, 337 transitions, 810 flow. Second operand 7 states and 2344 transitions. [2023-11-29 01:05:08,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 336 transitions, 846 flow [2023-11-29 01:05:08,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 336 transitions, 822 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-29 01:05:09,001 INFO L231 Difference]: Finished difference. Result has 337 places, 336 transitions, 794 flow [2023-11-29 01:05:09,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=794, PETRI_PLACES=337, PETRI_TRANSITIONS=336} [2023-11-29 01:05:09,002 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 5 predicate places. [2023-11-29 01:05:09,002 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 336 transitions, 794 flow [2023-11-29 01:05:09,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 334.42857142857144) internal successors, (2341), 7 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:09,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:09,003 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:09,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:05:09,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:09,204 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:09,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash -357707272, now seen corresponding path program 1 times [2023-11-29 01:05:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253382692] [2023-11-29 01:05:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 01:05:09,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:09,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253382692] [2023-11-29 01:05:09,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253382692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:09,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:09,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:09,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802038353] [2023-11-29 01:05:09,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:09,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:09,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:09,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:09,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:09,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 366 [2023-11-29 01:05:09,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 336 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:09,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:09,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 366 [2023-11-29 01:05:09,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:09,643 INFO L124 PetriNetUnfolderBase]: 80/1152 cut-off events. [2023-11-29 01:05:09,643 INFO L125 PetriNetUnfolderBase]: For 26/27 co-relation queries the response was YES. [2023-11-29 01:05:09,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1152 events. 80/1152 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5894 event pairs, 12 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1159. Up to 94 conditions per place. [2023-11-29 01:05:09,653 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 16 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-29 01:05:09,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 337 transitions, 835 flow [2023-11-29 01:05:09,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:09,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-11-29 01:05:09,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9408014571948998 [2023-11-29 01:05:09,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-11-29 01:05:09,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-11-29 01:05:09,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:09,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-11-29 01:05:09,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:09,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:09,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:09,665 INFO L175 Difference]: Start difference. First operand has 337 places, 336 transitions, 794 flow. Second operand 3 states and 1033 transitions. [2023-11-29 01:05:09,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 337 transitions, 835 flow [2023-11-29 01:05:09,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 337 transitions, 826 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:05:09,675 INFO L231 Difference]: Finished difference. Result has 331 places, 334 transitions, 791 flow [2023-11-29 01:05:09,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=331, PETRI_TRANSITIONS=334} [2023-11-29 01:05:09,676 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -1 predicate places. [2023-11-29 01:05:09,677 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 334 transitions, 791 flow [2023-11-29 01:05:09,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:09,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:09,678 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:09,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:05:09,678 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:09,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:09,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1586718532, now seen corresponding path program 1 times [2023-11-29 01:05:09,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:09,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552921938] [2023-11-29 01:05:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:09,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 01:05:10,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:10,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552921938] [2023-11-29 01:05:10,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552921938] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:05:10,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894897864] [2023-11-29 01:05:10,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:10,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:10,068 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:10,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:05:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:10,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:05:10,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 01:05:10,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:05:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 01:05:10,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894897864] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:05:10,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:05:10,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-29 01:05:10,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481441413] [2023-11-29 01:05:10,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:05:10,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 01:05:10,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:10,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 01:05:10,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:05:11,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-29 01:05:11,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 334 transitions, 791 flow. Second operand has 22 states, 22 states have (on average 328.54545454545456) internal successors, (7228), 22 states have internal predecessors, (7228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:11,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:11,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-29 01:05:11,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:11,607 INFO L124 PetriNetUnfolderBase]: 25/722 cut-off events. [2023-11-29 01:05:11,608 INFO L125 PetriNetUnfolderBase]: For 44/47 co-relation queries the response was YES. [2023-11-29 01:05:11,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 722 events. 25/722 cut-off events. For 44/47 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2369 event pairs, 0 based on Foata normal form. 4/658 useless extension candidates. Maximal degree in co-relation 553. Up to 17 conditions per place. [2023-11-29 01:05:11,613 INFO L140 encePairwiseOnDemand]: 346/366 looper letters, 24 selfloop transitions, 38 changer transitions 0/354 dead transitions. [2023-11-29 01:05:11,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 354 transitions, 1011 flow [2023-11-29 01:05:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:05:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 01:05:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5608 transitions. [2023-11-29 01:05:11,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9013179042108647 [2023-11-29 01:05:11,628 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5608 transitions. [2023-11-29 01:05:11,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5608 transitions. [2023-11-29 01:05:11,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:11,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5608 transitions. [2023-11-29 01:05:11,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 329.88235294117646) internal successors, (5608), 17 states have internal predecessors, (5608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:11,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 366.0) internal successors, (6588), 18 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:11,658 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 366.0) internal successors, (6588), 18 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:11,659 INFO L175 Difference]: Start difference. First operand has 331 places, 334 transitions, 791 flow. Second operand 17 states and 5608 transitions. [2023-11-29 01:05:11,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 354 transitions, 1011 flow [2023-11-29 01:05:11,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 354 transitions, 1011 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:05:11,667 INFO L231 Difference]: Finished difference. Result has 350 places, 348 transitions, 975 flow [2023-11-29 01:05:11,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=975, PETRI_PLACES=350, PETRI_TRANSITIONS=348} [2023-11-29 01:05:11,669 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 18 predicate places. [2023-11-29 01:05:11,669 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 348 transitions, 975 flow [2023-11-29 01:05:11,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 328.54545454545456) internal successors, (7228), 22 states have internal predecessors, (7228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:11,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:11,672 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:11,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:11,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:11,872 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:11,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:11,873 INFO L85 PathProgramCache]: Analyzing trace with hash -92199172, now seen corresponding path program 2 times [2023-11-29 01:05:11,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:11,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313222154] [2023-11-29 01:05:11,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:11,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:12,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:12,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313222154] [2023-11-29 01:05:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313222154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:12,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:12,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:12,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310653093] [2023-11-29 01:05:12,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:12,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:12,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:12,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:12,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:13,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-29 01:05:13,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 348 transitions, 975 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:13,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:13,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-29 01:05:13,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:13,653 INFO L124 PetriNetUnfolderBase]: 38/843 cut-off events. [2023-11-29 01:05:13,653 INFO L125 PetriNetUnfolderBase]: For 64/65 co-relation queries the response was YES. [2023-11-29 01:05:13,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 843 events. 38/843 cut-off events. For 64/65 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3316 event pairs, 2 based on Foata normal form. 0/764 useless extension candidates. Maximal degree in co-relation 745. Up to 60 conditions per place. [2023-11-29 01:05:13,659 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 27 selfloop transitions, 5 changer transitions 0/352 dead transitions. [2023-11-29 01:05:13,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 352 transitions, 1053 flow [2023-11-29 01:05:13,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:05:13,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2023-11-29 01:05:13,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061930783242259 [2023-11-29 01:05:13,666 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1990 transitions. [2023-11-29 01:05:13,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1990 transitions. [2023-11-29 01:05:13,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:13,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1990 transitions. [2023-11-29 01:05:13,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:13,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:13,678 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:13,678 INFO L175 Difference]: Start difference. First operand has 350 places, 348 transitions, 975 flow. Second operand 6 states and 1990 transitions. [2023-11-29 01:05:13,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 352 transitions, 1053 flow [2023-11-29 01:05:13,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 352 transitions, 1001 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-11-29 01:05:13,688 INFO L231 Difference]: Finished difference. Result has 345 places, 346 transitions, 929 flow [2023-11-29 01:05:13,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=929, PETRI_PLACES=345, PETRI_TRANSITIONS=346} [2023-11-29 01:05:13,689 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 13 predicate places. [2023-11-29 01:05:13,689 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 346 transitions, 929 flow [2023-11-29 01:05:13,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:13,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:13,690 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:13,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 01:05:13,691 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:13,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1204695002, now seen corresponding path program 1 times [2023-11-29 01:05:13,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:13,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375404358] [2023-11-29 01:05:13,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:13,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:13,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:13,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375404358] [2023-11-29 01:05:13,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375404358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:13,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:13,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:13,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179329561] [2023-11-29 01:05:13,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:13,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:13,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:13,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:13,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 366 [2023-11-29 01:05:13,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 346 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:13,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:13,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 366 [2023-11-29 01:05:13,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:14,106 INFO L124 PetriNetUnfolderBase]: 90/1367 cut-off events. [2023-11-29 01:05:14,106 INFO L125 PetriNetUnfolderBase]: For 85/86 co-relation queries the response was YES. [2023-11-29 01:05:14,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 1367 events. 90/1367 cut-off events. For 85/86 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7294 event pairs, 16 based on Foata normal form. 0/1240 useless extension candidates. Maximal degree in co-relation 1365. Up to 116 conditions per place. [2023-11-29 01:05:14,112 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 16 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2023-11-29 01:05:14,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 347 transitions, 970 flow [2023-11-29 01:05:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-11-29 01:05:14,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9408014571948998 [2023-11-29 01:05:14,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-11-29 01:05:14,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-11-29 01:05:14,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:14,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-11-29 01:05:14,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:14,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:14,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:14,118 INFO L175 Difference]: Start difference. First operand has 345 places, 346 transitions, 929 flow. Second operand 3 states and 1033 transitions. [2023-11-29 01:05:14,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 347 transitions, 970 flow [2023-11-29 01:05:14,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 347 transitions, 960 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:05:14,125 INFO L231 Difference]: Finished difference. Result has 339 places, 344 transitions, 925 flow [2023-11-29 01:05:14,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=925, PETRI_PLACES=339, PETRI_TRANSITIONS=344} [2023-11-29 01:05:14,126 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 7 predicate places. [2023-11-29 01:05:14,126 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 344 transitions, 925 flow [2023-11-29 01:05:14,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:14,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:14,127 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:14,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:05:14,127 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:14,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1884398530, now seen corresponding path program 1 times [2023-11-29 01:05:14,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:14,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603456071] [2023-11-29 01:05:14,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:14,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:14,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:14,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603456071] [2023-11-29 01:05:14,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603456071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:14,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:14,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:14,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478759306] [2023-11-29 01:05:14,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:14,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:14,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:15,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-29 01:05:15,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 344 transitions, 925 flow. Second operand has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:15,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:15,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-29 01:05:15,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:15,547 INFO L124 PetriNetUnfolderBase]: 61/895 cut-off events. [2023-11-29 01:05:15,548 INFO L125 PetriNetUnfolderBase]: For 94/96 co-relation queries the response was YES. [2023-11-29 01:05:15,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 895 events. 61/895 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4047 event pairs, 3 based on Foata normal form. 0/828 useless extension candidates. Maximal degree in co-relation 837. Up to 64 conditions per place. [2023-11-29 01:05:15,552 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 26 selfloop transitions, 5 changer transitions 0/347 dead transitions. [2023-11-29 01:05:15,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 347 transitions, 998 flow [2023-11-29 01:05:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:05:15,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1989 transitions. [2023-11-29 01:05:15,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9057377049180327 [2023-11-29 01:05:15,557 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1989 transitions. [2023-11-29 01:05:15,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1989 transitions. [2023-11-29 01:05:15,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:15,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1989 transitions. [2023-11-29 01:05:15,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:15,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:15,567 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:15,567 INFO L175 Difference]: Start difference. First operand has 339 places, 344 transitions, 925 flow. Second operand 6 states and 1989 transitions. [2023-11-29 01:05:15,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 347 transitions, 998 flow [2023-11-29 01:05:15,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 347 transitions, 998 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:05:15,574 INFO L231 Difference]: Finished difference. Result has 342 places, 342 transitions, 931 flow [2023-11-29 01:05:15,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=342, PETRI_TRANSITIONS=342} [2023-11-29 01:05:15,576 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 10 predicate places. [2023-11-29 01:05:15,576 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 342 transitions, 931 flow [2023-11-29 01:05:15,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:15,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:15,577 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:15,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:05:15,578 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:15,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:15,578 INFO L85 PathProgramCache]: Analyzing trace with hash 467610402, now seen corresponding path program 1 times [2023-11-29 01:05:15,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:15,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063996888] [2023-11-29 01:05:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:15,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:16,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:16,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063996888] [2023-11-29 01:05:16,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063996888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:16,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:16,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:16,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122718173] [2023-11-29 01:05:16,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:16,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:16,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:16,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:16,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:16,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-29 01:05:16,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 342 transitions, 931 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:16,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:16,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-29 01:05:16,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:17,179 INFO L124 PetriNetUnfolderBase]: 41/935 cut-off events. [2023-11-29 01:05:17,179 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2023-11-29 01:05:17,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 935 events. 41/935 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4085 event pairs, 2 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 999. Up to 64 conditions per place. [2023-11-29 01:05:17,183 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 27 selfloop transitions, 5 changer transitions 0/346 dead transitions. [2023-11-29 01:05:17,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 1009 flow [2023-11-29 01:05:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:05:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2023-11-29 01:05:17,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061930783242259 [2023-11-29 01:05:17,188 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1990 transitions. [2023-11-29 01:05:17,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1990 transitions. [2023-11-29 01:05:17,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:17,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1990 transitions. [2023-11-29 01:05:17,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:17,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:17,196 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:17,196 INFO L175 Difference]: Start difference. First operand has 342 places, 342 transitions, 931 flow. Second operand 6 states and 1990 transitions. [2023-11-29 01:05:17,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 1009 flow [2023-11-29 01:05:17,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 346 transitions, 999 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:05:17,203 INFO L231 Difference]: Finished difference. Result has 340 places, 340 transitions, 927 flow [2023-11-29 01:05:17,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=927, PETRI_PLACES=340, PETRI_TRANSITIONS=340} [2023-11-29 01:05:17,203 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 8 predicate places. [2023-11-29 01:05:17,204 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 340 transitions, 927 flow [2023-11-29 01:05:17,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:17,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:17,205 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:17,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:05:17,205 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:17,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash -5400604, now seen corresponding path program 1 times [2023-11-29 01:05:17,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:17,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096502932] [2023-11-29 01:05:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:17,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:17,780 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:17,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:17,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096502932] [2023-11-29 01:05:17,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096502932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:17,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:17,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:17,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408169345] [2023-11-29 01:05:17,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:17,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:17,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:18,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-29 01:05:18,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 340 transitions, 927 flow. Second operand has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:18,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:18,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-29 01:05:18,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:18,466 INFO L124 PetriNetUnfolderBase]: 68/976 cut-off events. [2023-11-29 01:05:18,467 INFO L125 PetriNetUnfolderBase]: For 107/110 co-relation queries the response was YES. [2023-11-29 01:05:18,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 976 events. 68/976 cut-off events. For 107/110 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4680 event pairs, 5 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 947. Up to 73 conditions per place. [2023-11-29 01:05:18,470 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 26 selfloop transitions, 5 changer transitions 0/343 dead transitions. [2023-11-29 01:05:18,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 343 transitions, 1000 flow [2023-11-29 01:05:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:18,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:05:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1989 transitions. [2023-11-29 01:05:18,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9057377049180327 [2023-11-29 01:05:18,475 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1989 transitions. [2023-11-29 01:05:18,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1989 transitions. [2023-11-29 01:05:18,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:18,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1989 transitions. [2023-11-29 01:05:18,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:18,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:18,485 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:18,485 INFO L175 Difference]: Start difference. First operand has 340 places, 340 transitions, 927 flow. Second operand 6 states and 1989 transitions. [2023-11-29 01:05:18,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 343 transitions, 1000 flow [2023-11-29 01:05:18,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 343 transitions, 990 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:05:18,494 INFO L231 Difference]: Finished difference. Result has 338 places, 338 transitions, 923 flow [2023-11-29 01:05:18,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=923, PETRI_PLACES=338, PETRI_TRANSITIONS=338} [2023-11-29 01:05:18,495 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 6 predicate places. [2023-11-29 01:05:18,495 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 338 transitions, 923 flow [2023-11-29 01:05:18,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:18,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:18,495 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:18,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:05:18,496 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:18,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1022114800, now seen corresponding path program 1 times [2023-11-29 01:05:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876833819] [2023-11-29 01:05:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:19,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:19,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876833819] [2023-11-29 01:05:19,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876833819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:19,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:19,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:05:19,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341785449] [2023-11-29 01:05:19,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:19,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:19,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:19,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:19,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:19,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 366 [2023-11-29 01:05:19,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 338 transitions, 923 flow. Second operand has 6 states, 6 states have (on average 335.0) internal successors, (2010), 6 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:19,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:19,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 366 [2023-11-29 01:05:19,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:19,933 INFO L124 PetriNetUnfolderBase]: 29/777 cut-off events. [2023-11-29 01:05:19,933 INFO L125 PetriNetUnfolderBase]: For 63/77 co-relation queries the response was YES. [2023-11-29 01:05:19,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 777 events. 29/777 cut-off events. For 63/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2800 event pairs, 0 based on Foata normal form. 8/749 useless extension candidates. Maximal degree in co-relation 825. Up to 50 conditions per place. [2023-11-29 01:05:19,937 INFO L140 encePairwiseOnDemand]: 361/366 looper letters, 15 selfloop transitions, 4 changer transitions 0/337 dead transitions. [2023-11-29 01:05:19,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 337 transitions, 959 flow [2023-11-29 01:05:19,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:05:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2012 transitions. [2023-11-29 01:05:19,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9162112932604736 [2023-11-29 01:05:19,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2012 transitions. [2023-11-29 01:05:19,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2012 transitions. [2023-11-29 01:05:19,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:19,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2012 transitions. [2023-11-29 01:05:19,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.3333333333333) internal successors, (2012), 6 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:19,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:19,950 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:19,951 INFO L175 Difference]: Start difference. First operand has 338 places, 338 transitions, 923 flow. Second operand 6 states and 2012 transitions. [2023-11-29 01:05:19,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 337 transitions, 959 flow [2023-11-29 01:05:19,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 337 transitions, 949 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:05:19,957 INFO L231 Difference]: Finished difference. Result has 337 places, 337 transitions, 919 flow [2023-11-29 01:05:19,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=337, PETRI_TRANSITIONS=337} [2023-11-29 01:05:19,958 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 5 predicate places. [2023-11-29 01:05:19,958 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 337 transitions, 919 flow [2023-11-29 01:05:19,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 335.0) internal successors, (2010), 6 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:19,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:19,959 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:19,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 01:05:19,959 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:19,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:19,959 INFO L85 PathProgramCache]: Analyzing trace with hash -775010272, now seen corresponding path program 1 times [2023-11-29 01:05:19,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:19,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269358543] [2023-11-29 01:05:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:19,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:20,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269358543] [2023-11-29 01:05:20,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269358543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:20,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:20,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875819406] [2023-11-29 01:05:20,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:20,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:20,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 366 [2023-11-29 01:05:20,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 337 transitions, 919 flow. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:20,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 366 [2023-11-29 01:05:20,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:20,187 INFO L124 PetriNetUnfolderBase]: 36/782 cut-off events. [2023-11-29 01:05:20,187 INFO L125 PetriNetUnfolderBase]: For 65/70 co-relation queries the response was YES. [2023-11-29 01:05:20,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 782 events. 36/782 cut-off events. For 65/70 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2847 event pairs, 2 based on Foata normal form. 1/751 useless extension candidates. Maximal degree in co-relation 937. Up to 24 conditions per place. [2023-11-29 01:05:20,190 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 8 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-29 01:05:20,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 337 transitions, 940 flow [2023-11-29 01:05:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-29 01:05:20,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-29 01:05:20,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-29 01:05:20,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-29 01:05:20,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:20,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-29 01:05:20,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,198 INFO L175 Difference]: Start difference. First operand has 337 places, 337 transitions, 919 flow. Second operand 3 states and 1043 transitions. [2023-11-29 01:05:20,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 337 transitions, 940 flow [2023-11-29 01:05:20,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 337 transitions, 933 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 01:05:20,204 INFO L231 Difference]: Finished difference. Result has 334 places, 336 transitions, 914 flow [2023-11-29 01:05:20,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=914, PETRI_PLACES=334, PETRI_TRANSITIONS=336} [2023-11-29 01:05:20,205 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 2 predicate places. [2023-11-29 01:05:20,205 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 336 transitions, 914 flow [2023-11-29 01:05:20,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:20,206 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:20,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 01:05:20,206 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:20,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:20,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1910695759, now seen corresponding path program 1 times [2023-11-29 01:05:20,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:20,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567063676] [2023-11-29 01:05:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:20,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:20,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:20,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567063676] [2023-11-29 01:05:20,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567063676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:20,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:20,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892261562] [2023-11-29 01:05:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:20,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 366 [2023-11-29 01:05:20,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 336 transitions, 914 flow. Second operand has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:20,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 366 [2023-11-29 01:05:20,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:20,429 INFO L124 PetriNetUnfolderBase]: 39/778 cut-off events. [2023-11-29 01:05:20,429 INFO L125 PetriNetUnfolderBase]: For 72/77 co-relation queries the response was YES. [2023-11-29 01:05:20,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 778 events. 39/778 cut-off events. For 72/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2789 event pairs, 2 based on Foata normal form. 1/747 useless extension candidates. Maximal degree in co-relation 927. Up to 26 conditions per place. [2023-11-29 01:05:20,432 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 8 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2023-11-29 01:05:20,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 336 transitions, 935 flow [2023-11-29 01:05:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-29 01:05:20,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-29 01:05:20,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-29 01:05:20,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-29 01:05:20,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:20,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-29 01:05:20,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,437 INFO L175 Difference]: Start difference. First operand has 334 places, 336 transitions, 914 flow. Second operand 3 states and 1043 transitions. [2023-11-29 01:05:20,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 336 transitions, 935 flow [2023-11-29 01:05:20,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 336 transitions, 931 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:05:20,445 INFO L231 Difference]: Finished difference. Result has 333 places, 335 transitions, 912 flow [2023-11-29 01:05:20,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=912, PETRI_PLACES=333, PETRI_TRANSITIONS=335} [2023-11-29 01:05:20,446 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 1 predicate places. [2023-11-29 01:05:20,446 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 335 transitions, 912 flow [2023-11-29 01:05:20,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:20,447 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:20,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 01:05:20,448 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:20,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash -581189330, now seen corresponding path program 1 times [2023-11-29 01:05:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:20,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205307670] [2023-11-29 01:05:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:20,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:20,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:20,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205307670] [2023-11-29 01:05:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205307670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:20,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:20,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:20,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272200705] [2023-11-29 01:05:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:20,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:20,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:20,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:20,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:20,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 366 [2023-11-29 01:05:20,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 335 transitions, 912 flow. Second operand has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:20,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 366 [2023-11-29 01:05:20,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:20,648 INFO L124 PetriNetUnfolderBase]: 33/769 cut-off events. [2023-11-29 01:05:20,648 INFO L125 PetriNetUnfolderBase]: For 65/67 co-relation queries the response was YES. [2023-11-29 01:05:20,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 769 events. 33/769 cut-off events. For 65/67 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2696 event pairs, 1 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 934. Up to 17 conditions per place. [2023-11-29 01:05:20,651 INFO L140 encePairwiseOnDemand]: 364/366 looper letters, 6 selfloop transitions, 1 changer transitions 0/334 dead transitions. [2023-11-29 01:05:20,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 334 transitions, 924 flow [2023-11-29 01:05:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1046 transitions. [2023-11-29 01:05:20,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9526411657559198 [2023-11-29 01:05:20,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1046 transitions. [2023-11-29 01:05:20,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1046 transitions. [2023-11-29 01:05:20,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:20,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1046 transitions. [2023-11-29 01:05:20,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,657 INFO L175 Difference]: Start difference. First operand has 333 places, 335 transitions, 912 flow. Second operand 3 states and 1046 transitions. [2023-11-29 01:05:20,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 334 transitions, 924 flow [2023-11-29 01:05:20,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 334 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:05:20,663 INFO L231 Difference]: Finished difference. Result has 332 places, 334 transitions, 908 flow [2023-11-29 01:05:20,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=332, PETRI_TRANSITIONS=334} [2023-11-29 01:05:20,664 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 0 predicate places. [2023-11-29 01:05:20,664 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 334 transitions, 908 flow [2023-11-29 01:05:20,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:20,665 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:20,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:05:20,665 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-29 01:05:20,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -177174130, now seen corresponding path program 1 times [2023-11-29 01:05:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263845986] [2023-11-29 01:05:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:20,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-29 01:05:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263845986] [2023-11-29 01:05:20,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263845986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:20,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:20,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:20,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878454847] [2023-11-29 01:05:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:20,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:20,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:20,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:20,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 366 [2023-11-29 01:05:20,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 334 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:20,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 366 [2023-11-29 01:05:20,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:20,863 INFO L124 PetriNetUnfolderBase]: 33/763 cut-off events. [2023-11-29 01:05:20,863 INFO L125 PetriNetUnfolderBase]: For 66/68 co-relation queries the response was YES. [2023-11-29 01:05:20,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 763 events. 33/763 cut-off events. For 66/68 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2650 event pairs, 1 based on Foata normal form. 2/737 useless extension candidates. Maximal degree in co-relation 943. Up to 18 conditions per place. [2023-11-29 01:05:20,866 INFO L140 encePairwiseOnDemand]: 364/366 looper letters, 0 selfloop transitions, 0 changer transitions 333/333 dead transitions. [2023-11-29 01:05:20,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 333 transitions, 918 flow [2023-11-29 01:05:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:05:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1045 transitions. [2023-11-29 01:05:20,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9517304189435337 [2023-11-29 01:05:20,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1045 transitions. [2023-11-29 01:05:20,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1045 transitions. [2023-11-29 01:05:20,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:20,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1045 transitions. [2023-11-29 01:05:20,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,872 INFO L175 Difference]: Start difference. First operand has 332 places, 334 transitions, 908 flow. Second operand 3 states and 1045 transitions. [2023-11-29 01:05:20,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 333 transitions, 918 flow [2023-11-29 01:05:20,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 333 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:05:20,878 INFO L231 Difference]: Finished difference. Result has 332 places, 0 transitions, 0 flow [2023-11-29 01:05:20,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=332, PETRI_TRANSITIONS=0} [2023-11-29 01:05:20,879 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 0 predicate places. [2023-11-29 01:05:20,879 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 0 transitions, 0 flow [2023-11-29 01:05:20,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:20,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-11-29 01:05:20,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-11-29 01:05:20,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-11-29 01:05:20,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-11-29 01:05:20,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-11-29 01:05:20,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-11-29 01:05:20,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-11-29 01:05:20,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-11-29 01:05:20,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-11-29 01:05:20,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-11-29 01:05:20,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-11-29 01:05:20,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-11-29 01:05:20,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-11-29 01:05:20,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-11-29 01:05:20,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-11-29 01:05:20,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-11-29 01:05:20,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-11-29 01:05:20,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-11-29 01:05:20,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-11-29 01:05:20,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-11-29 01:05:20,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-11-29 01:05:20,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-11-29 01:05:20,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-11-29 01:05:20,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-11-29 01:05:20,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-11-29 01:05:20,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-11-29 01:05:20,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-11-29 01:05:20,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-11-29 01:05:20,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-11-29 01:05:20,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 01:05:20,891 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:20,896 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 01:05:20,897 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:05:20,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:05:20 BasicIcfg [2023-11-29 01:05:20,902 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:05:20,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:05:20,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:05:20,902 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:05:20,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:00" (3/4) ... [2023-11-29 01:05:20,904 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:05:20,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 01:05:20,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 01:05:20,915 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-29 01:05:20,915 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 01:05:20,916 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 01:05:20,916 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:05:21,009 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:05:21,010 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:05:21,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:05:21,011 INFO L158 Benchmark]: Toolchain (without parser) took 21974.21ms. Allocated memory was 165.7MB in the beginning and 1.0GB in the end (delta: 841.0MB). Free memory was 135.4MB in the beginning and 386.9MB in the end (delta: -251.5MB). Peak memory consumption was 592.2MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,011 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 85.2MB in the beginning and 85.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:05:21,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.29ms. Allocated memory is still 165.7MB. Free memory was 135.1MB in the beginning and 122.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.61ms. Allocated memory is still 165.7MB. Free memory was 122.5MB in the beginning and 119.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,012 INFO L158 Benchmark]: Boogie Preprocessor took 50.70ms. Allocated memory is still 165.7MB. Free memory was 119.2MB in the beginning and 116.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,013 INFO L158 Benchmark]: RCFGBuilder took 675.94ms. Allocated memory is still 165.7MB. Free memory was 116.2MB in the beginning and 84.0MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,013 INFO L158 Benchmark]: TraceAbstraction took 20787.12ms. Allocated memory was 165.7MB in the beginning and 1.0GB in the end (delta: 841.0MB). Free memory was 83.2MB in the beginning and 393.2MB in the end (delta: -310.0MB). Peak memory consumption was 533.5MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,013 INFO L158 Benchmark]: Witness Printer took 108.00ms. Allocated memory is still 1.0GB. Free memory was 393.2MB in the beginning and 386.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 01:05:21,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 85.2MB in the beginning and 85.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.29ms. Allocated memory is still 165.7MB. Free memory was 135.1MB in the beginning and 122.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.61ms. Allocated memory is still 165.7MB. Free memory was 122.5MB in the beginning and 119.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.70ms. Allocated memory is still 165.7MB. Free memory was 119.2MB in the beginning and 116.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.94ms. Allocated memory is still 165.7MB. Free memory was 116.2MB in the beginning and 84.0MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20787.12ms. Allocated memory was 165.7MB in the beginning and 1.0GB in the end (delta: 841.0MB). Free memory was 83.2MB in the beginning and 393.2MB in the end (delta: -310.0MB). Peak memory consumption was 533.5MB. Max. memory is 16.1GB. * Witness Printer took 108.00ms. Allocated memory is still 1.0GB. Free memory was 393.2MB in the beginning and 386.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 508 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.6s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3145 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2033 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 887 mSDsCounter, 1021 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5707 IncrementalHoareTripleChecker+Invalid, 6728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1021 mSolverCounterUnsat, 173 mSDtfsCounter, 5707 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 914 SyntacticMatches, 5 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=12, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 4892 NumberOfCodeBlocks, 4802 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 5221 ConstructedInterpolants, 0 QuantifiedInterpolants, 7791 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1131 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 27 InterpolantComputations, 20 PerfectInterpolantSequences, 3487/3682 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 01:05:21,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c861b9-b74d-44f1-8602-449a506bc637/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE