./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/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_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/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_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/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 adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:07:47,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:07:47,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 01:07:47,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:07:47,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:07:47,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:07:47,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:07:47,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:07:47,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:07:47,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:07:47,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:07:47,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:07:47,836 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:07:47,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:07:47,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:07:47,838 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:07:47,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:07:47,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:07:47,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:07:47,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:07:47,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:07:47,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:07:47,841 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 01:07:47,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:07:47,842 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:07:47,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:07:47,843 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:07:47,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:07:47,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:07:47,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:07:47,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:07:47,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:07:47,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:07:47,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:07:47,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:07:47,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:07:47,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:07:47,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:07:47,848 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:07:47,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:07:47,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:07:47,849 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_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2023-11-29 01:07:48,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:07:48,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:07:48,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:07:48,108 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:07:48,108 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:07:48,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2023-11-29 01:07:50,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:07:51,115 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:07:51,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2023-11-29 01:07:51,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/data/f326bc735/282e544e5cc642ff97effc890e580c62/FLAGba1b634b8 [2023-11-29 01:07:51,148 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/data/f326bc735/282e544e5cc642ff97effc890e580c62 [2023-11-29 01:07:51,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:07:51,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:07:51,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:07:51,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:07:51,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:07:51,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726913f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51, skipping insertion in model container [2023-11-29 01:07:51,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,219 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:07:51,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:07:51,520 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:07:51,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:07:51,602 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:07:51,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51 WrapperNode [2023-11-29 01:07:51,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:07:51,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:07:51,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:07:51,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:07:51,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,671 INFO L138 Inliner]: procedures = 176, calls = 37, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 222 [2023-11-29 01:07:51,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:07:51,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:07:51,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:07:51,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:07:51,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:07:51,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:07:51,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:07:51,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:07:51,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (1/1) ... [2023-11-29 01:07:51,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:07:51,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:51,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:07:51,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4f31bd-f025-496d-b4ee-d3ce48311cf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:07:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 01:07:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-29 01:07:51,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-29 01:07:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 01:07:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:07:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:07:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:07:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 01:07:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:07:51,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:07:51,786 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 01:07:51,915 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:07:51,917 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:07:52,259 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:07:52,469 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:07:52,469 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 01:07:52,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:52 BoogieIcfgContainer [2023-11-29 01:07:52,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:07:52,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:07:52,474 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:07:52,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:07:52,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:07:51" (1/3) ... [2023-11-29 01:07:52,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037afb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:07:52, skipping insertion in model container [2023-11-29 01:07:52,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:51" (2/3) ... [2023-11-29 01:07:52,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037afb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:07:52, skipping insertion in model container [2023-11-29 01:07:52,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:52" (3/3) ... [2023-11-29 01:07:52,480 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2023-11-29 01:07:52,489 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:07:52,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:07:52,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-29 01:07:52,500 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:07:52,588 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 01:07:52,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 180 transitions, 364 flow [2023-11-29 01:07:52,692 INFO L124 PetriNetUnfolderBase]: 17/191 cut-off events. [2023-11-29 01:07:52,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:07:52,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 191 events. 17/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 358 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2023-11-29 01:07:52,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 180 transitions, 364 flow [2023-11-29 01:07:52,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 180 transitions, 364 flow [2023-11-29 01:07:52,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:07:52,723 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;@75c3d315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:07:52,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-11-29 01:07:52,730 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:07:52,730 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2023-11-29 01:07:52,731 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:07:52,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:52,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:52,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-29 01:07:52,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -998052228, now seen corresponding path program 1 times [2023-11-29 01:07:52,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:52,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198923122] [2023-11-29 01:07:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:52,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:52,918 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 01:07:52,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:52,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198923122] [2023-11-29 01:07:52,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198923122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:52,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:52,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:07:52,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052597472] [2023-11-29 01:07:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:52,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:07:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:52,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:07:52,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:52,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 180 [2023-11-29 01:07:52,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 180 transitions, 364 flow. Second operand has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 01:07:52,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:52,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 180 [2023-11-29 01:07:52,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:53,042 INFO L124 PetriNetUnfolderBase]: 4/146 cut-off events. [2023-11-29 01:07:53,042 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 01:07:53,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 146 events. 4/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 128 event pairs, 0 based on Foata normal form. 14/147 useless extension candidates. Maximal degree in co-relation 130. Up to 6 conditions per place. [2023-11-29 01:07:53,045 INFO L140 encePairwiseOnDemand]: 157/180 looper letters, 5 selfloop transitions, 0 changer transitions 0/142 dead transitions. [2023-11-29 01:07:53,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 142 transitions, 298 flow [2023-11-29 01:07:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:07:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 01:07:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 326 transitions. [2023-11-29 01:07:53,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9055555555555556 [2023-11-29 01:07:53,059 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 326 transitions. [2023-11-29 01:07:53,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 326 transitions. [2023-11-29 01:07:53,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:53,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 326 transitions. [2023-11-29 01:07:53,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 0 states have call successors, (0), 0 states 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 01:07:53,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 01:07:53,073 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 01:07:53,075 INFO L175 Difference]: Start difference. First operand has 167 places, 180 transitions, 364 flow. Second operand 2 states and 326 transitions. [2023-11-29 01:07:53,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 142 transitions, 298 flow [2023-11-29 01:07:53,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 142 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:07:53,082 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 288 flow [2023-11-29 01:07:53,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=288, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-11-29 01:07:53,087 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -25 predicate places. [2023-11-29 01:07:53,087 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 288 flow [2023-11-29 01:07:53,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 01:07:53,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:53,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:53,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:07:53,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-29 01:07:53,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:53,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1350461153, now seen corresponding path program 1 times [2023-11-29 01:07:53,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:53,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994855680] [2023-11-29 01:07:53,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:53,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:53,176 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 01:07:53,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:53,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994855680] [2023-11-29 01:07:53,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994855680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:53,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:53,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:07:53,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568848840] [2023-11-29 01:07:53,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:53,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:53,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:53,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:53,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:53,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 180 [2023-11-29 01:07:53,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states 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 01:07:53,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:53,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 180 [2023-11-29 01:07:53,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:53,281 INFO L124 PetriNetUnfolderBase]: 4/145 cut-off events. [2023-11-29 01:07:53,282 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 01:07:53,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 145 events. 4/145 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 126 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 155. Up to 5 conditions per place. [2023-11-29 01:07:53,283 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 6 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2023-11-29 01:07:53,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 302 flow [2023-11-29 01:07:53,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:07:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-11-29 01:07:53,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2023-11-29 01:07:53,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-11-29 01:07:53,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-11-29 01:07:53,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:53,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-11-29 01:07:53,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 01:07:53,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states 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 01:07:53,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states 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 01:07:53,296 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 288 flow. Second operand 3 states and 444 transitions. [2023-11-29 01:07:53,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 302 flow [2023-11-29 01:07:53,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 141 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:07:53,301 INFO L231 Difference]: Finished difference. Result has 143 places, 141 transitions, 290 flow [2023-11-29 01:07:53,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=143, PETRI_TRANSITIONS=141} [2023-11-29 01:07:53,303 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -24 predicate places. [2023-11-29 01:07:53,303 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 141 transitions, 290 flow [2023-11-29 01:07:53,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states 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 01:07:53,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:53,304 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:53,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:07:53,305 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-29 01:07:53,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:53,305 INFO L85 PathProgramCache]: Analyzing trace with hash -302056723, now seen corresponding path program 1 times [2023-11-29 01:07:53,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:53,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164037135] [2023-11-29 01:07:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:07:53,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:07:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:07:53,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:07:53,395 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:07:53,396 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-11-29 01:07:53,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-11-29 01:07:53,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-11-29 01:07:53,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-11-29 01:07:53,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-11-29 01:07:53,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-11-29 01:07:53,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-11-29 01:07:53,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-11-29 01:07:53,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-11-29 01:07:53,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-11-29 01:07:53,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-11-29 01:07:53,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-11-29 01:07:53,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-11-29 01:07:53,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-11-29 01:07:53,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-11-29 01:07:53,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-11-29 01:07:53,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-11-29 01:07:53,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-11-29 01:07:53,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-11-29 01:07:53,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-11-29 01:07:53,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-11-29 01:07:53,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-11-29 01:07:53,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-11-29 01:07:53,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-11-29 01:07:53,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-11-29 01:07:53,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-11-29 01:07:53,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-11-29 01:07:53,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-11-29 01:07:53,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-11-29 01:07:53,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-11-29 01:07:53,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-11-29 01:07:53,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-11-29 01:07:53,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-11-29 01:07:53,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:07:53,408 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 01:07:53,410 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:07:53,411 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 01:07:53,512 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 01:07:53,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 332 transitions, 674 flow [2023-11-29 01:07:53,604 INFO L124 PetriNetUnfolderBase]: 33/356 cut-off events. [2023-11-29 01:07:53,605 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 01:07:53,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 356 events. 33/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1244 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 315. Up to 6 conditions per place. [2023-11-29 01:07:53,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 332 transitions, 674 flow [2023-11-29 01:07:53,622 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 332 transitions, 674 flow [2023-11-29 01:07:53,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:07:53,625 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@75c3d315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:07:53,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-29 01:07:53,630 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:07:53,630 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-11-29 01:07:53,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:07:53,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:53,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:53,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:07:53,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash -645899649, now seen corresponding path program 1 times [2023-11-29 01:07:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:53,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061142402] [2023-11-29 01:07:53,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:53,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:53,667 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 01:07:53,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:53,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061142402] [2023-11-29 01:07:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061142402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:53,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:53,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:07:53,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565929034] [2023-11-29 01:07:53,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:53,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:07:53,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:07:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:53,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 332 [2023-11-29 01:07:53,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 332 transitions, 674 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 01:07:53,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:53,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 332 [2023-11-29 01:07:53,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:54,050 INFO L124 PetriNetUnfolderBase]: 48/888 cut-off events. [2023-11-29 01:07:54,051 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-29 01:07:54,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 888 events. 48/888 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4812 event pairs, 20 based on Foata normal form. 110/900 useless extension candidates. Maximal degree in co-relation 778. Up to 51 conditions per place. [2023-11-29 01:07:54,060 INFO L140 encePairwiseOnDemand]: 288/332 looper letters, 10 selfloop transitions, 0 changer transitions 0/263 dead transitions. [2023-11-29 01:07:54,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 263 transitions, 556 flow [2023-11-29 01:07:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:07:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 01:07:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 598 transitions. [2023-11-29 01:07:54,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9006024096385542 [2023-11-29 01:07:54,064 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 598 transitions. [2023-11-29 01:07:54,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 598 transitions. [2023-11-29 01:07:54,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:54,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 598 transitions. [2023-11-29 01:07:54,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 299.0) internal successors, (598), 2 states have internal predecessors, (598), 0 states have call successors, (0), 0 states 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 01:07:54,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states 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 01:07:54,071 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states 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 01:07:54,071 INFO L175 Difference]: Start difference. First operand has 306 places, 332 transitions, 674 flow. Second operand 2 states and 598 transitions. [2023-11-29 01:07:54,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 263 transitions, 556 flow [2023-11-29 01:07:54,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 263 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:07:54,079 INFO L231 Difference]: Finished difference. Result has 261 places, 263 transitions, 536 flow [2023-11-29 01:07:54,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=536, PETRI_PLACES=261, PETRI_TRANSITIONS=263} [2023-11-29 01:07:54,081 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -45 predicate places. [2023-11-29 01:07:54,081 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 263 transitions, 536 flow [2023-11-29 01:07:54,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 01:07:54,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:54,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:54,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:07:54,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:07:54,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:54,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2060733634, now seen corresponding path program 1 times [2023-11-29 01:07:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:54,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153101371] [2023-11-29 01:07:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:54,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:54,128 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 01:07:54,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:54,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153101371] [2023-11-29 01:07:54,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153101371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:54,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:54,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:07:54,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993576797] [2023-11-29 01:07:54,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:54,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:54,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:54,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 332 [2023-11-29 01:07:54,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 263 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states 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 01:07:54,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:54,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 332 [2023-11-29 01:07:54,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:54,746 INFO L124 PetriNetUnfolderBase]: 119/1660 cut-off events. [2023-11-29 01:07:54,747 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-29 01:07:54,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 1660 events. 119/1660 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11871 event pairs, 27 based on Foata normal form. 0/1480 useless extension candidates. Maximal degree in co-relation 1844. Up to 92 conditions per place. [2023-11-29 01:07:54,764 INFO L140 encePairwiseOnDemand]: 324/332 looper letters, 27 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2023-11-29 01:07:54,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 278 transitions, 637 flow [2023-11-29 01:07:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:54,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:07:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 827 transitions. [2023-11-29 01:07:54,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8303212851405622 [2023-11-29 01:07:54,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 827 transitions. [2023-11-29 01:07:54,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 827 transitions. [2023-11-29 01:07:54,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:54,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 827 transitions. [2023-11-29 01:07:54,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states 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 01:07:54,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states 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 01:07:54,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states 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 01:07:54,780 INFO L175 Difference]: Start difference. First operand has 261 places, 263 transitions, 536 flow. Second operand 3 states and 827 transitions. [2023-11-29 01:07:54,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 278 transitions, 637 flow [2023-11-29 01:07:54,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 278 transitions, 637 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:07:54,789 INFO L231 Difference]: Finished difference. Result has 265 places, 269 transitions, 588 flow [2023-11-29 01:07:54,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=265, PETRI_TRANSITIONS=269} [2023-11-29 01:07:54,791 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -41 predicate places. [2023-11-29 01:07:54,791 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 269 transitions, 588 flow [2023-11-29 01:07:54,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states 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 01:07:54,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:54,792 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:54,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:07:54,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:07:54,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash 408026844, now seen corresponding path program 1 times [2023-11-29 01:07:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791993436] [2023-11-29 01:07:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:07:54,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:07:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:07:54,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:07:54,836 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:07:54,837 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-29 01:07:54,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-29 01:07:54,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-29 01:07:54,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-29 01:07:54,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-29 01:07:54,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-29 01:07:54,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-29 01:07:54,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-29 01:07:54,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-29 01:07:54,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-29 01:07:54,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-29 01:07:54,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-29 01:07:54,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-29 01:07:54,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-29 01:07:54,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-29 01:07:54,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-29 01:07:54,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-29 01:07:54,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-29 01:07:54,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-29 01:07:54,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-29 01:07:54,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-29 01:07:54,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-29 01:07:54,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-29 01:07:54,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-29 01:07:54,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-29 01:07:54,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-29 01:07:54,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-29 01:07:54,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-29 01:07:54,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-29 01:07:54,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-29 01:07:54,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-29 01:07:54,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-29 01:07:54,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-29 01:07:54,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-29 01:07:54,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-29 01:07:54,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-29 01:07:54,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-29 01:07:54,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-29 01:07:54,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-29 01:07:54,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-29 01:07:54,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-29 01:07:54,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-29 01:07:54,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-29 01:07:54,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-29 01:07:54,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-29 01:07:54,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-29 01:07:54,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-29 01:07:54,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-29 01:07:54,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-29 01:07:54,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:07:54,851 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 01:07:54,852 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:07:54,852 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 01:07:54,974 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 01:07:54,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 445 places, 484 transitions, 986 flow [2023-11-29 01:07:55,143 INFO L124 PetriNetUnfolderBase]: 49/521 cut-off events. [2023-11-29 01:07:55,144 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 01:07:55,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 49/521 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2281 event pairs, 0 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 466. Up to 8 conditions per place. [2023-11-29 01:07:55,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 445 places, 484 transitions, 986 flow [2023-11-29 01:07:55,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 445 places, 484 transitions, 986 flow [2023-11-29 01:07:55,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:07:55,170 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;@75c3d315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:07:55,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-29 01:07:55,174 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:07:55,174 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-11-29 01:07:55,174 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:07:55,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:55,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:55,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 01:07:55,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:55,176 INFO L85 PathProgramCache]: Analyzing trace with hash -598313414, now seen corresponding path program 1 times [2023-11-29 01:07:55,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:55,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108104477] [2023-11-29 01:07:55,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:55,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:55,198 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 01:07:55,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:55,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108104477] [2023-11-29 01:07:55,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108104477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:55,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:55,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:07:55,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153119203] [2023-11-29 01:07:55,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:55,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:07:55,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:55,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:07:55,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:55,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 484 [2023-11-29 01:07:55,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 484 transitions, 986 flow. Second operand has 2 states, 2 states have (on average 396.0) internal successors, (792), 2 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 01:07:55,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:55,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 484 [2023-11-29 01:07:55,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:56,484 INFO L124 PetriNetUnfolderBase]: 372/4785 cut-off events. [2023-11-29 01:07:56,484 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-11-29 01:07:56,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5282 conditions, 4785 events. 372/4785 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 46172 event pairs, 220 based on Foata normal form. 748/4974 useless extension candidates. Maximal degree in co-relation 4174. Up to 376 conditions per place. [2023-11-29 01:07:56,540 INFO L140 encePairwiseOnDemand]: 419/484 looper letters, 15 selfloop transitions, 0 changer transitions 0/384 dead transitions. [2023-11-29 01:07:56,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 384 transitions, 816 flow [2023-11-29 01:07:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:07:56,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 01:07:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 870 transitions. [2023-11-29 01:07:56,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8987603305785123 [2023-11-29 01:07:56,544 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 870 transitions. [2023-11-29 01:07:56,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 870 transitions. [2023-11-29 01:07:56,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:56,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 870 transitions. [2023-11-29 01:07:56,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 435.0) internal successors, (870), 2 states have internal predecessors, (870), 0 states have call successors, (0), 0 states 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 01:07:56,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states 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 01:07:56,551 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states 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 01:07:56,551 INFO L175 Difference]: Start difference. First operand has 445 places, 484 transitions, 986 flow. Second operand 2 states and 870 transitions. [2023-11-29 01:07:56,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 384 transitions, 816 flow [2023-11-29 01:07:56,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 384 transitions, 814 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-29 01:07:56,559 INFO L231 Difference]: Finished difference. Result has 380 places, 384 transitions, 784 flow [2023-11-29 01:07:56,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=784, PETRI_PLACES=380, PETRI_TRANSITIONS=384} [2023-11-29 01:07:56,561 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -65 predicate places. [2023-11-29 01:07:56,561 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 384 transitions, 784 flow [2023-11-29 01:07:56,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 396.0) internal successors, (792), 2 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 01:07:56,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:56,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:56,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:07:56,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 01:07:56,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:56,563 INFO L85 PathProgramCache]: Analyzing trace with hash 546480701, now seen corresponding path program 1 times [2023-11-29 01:07:56,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:56,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623782784] [2023-11-29 01:07:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:56,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:56,597 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 01:07:56,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:56,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623782784] [2023-11-29 01:07:56,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623782784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:56,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:56,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:07:56,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092957499] [2023-11-29 01:07:56,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:56,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:56,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:56,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:56,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:56,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2023-11-29 01:07:56,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 384 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states 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 01:07:56,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:56,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2023-11-29 01:07:56,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:59,421 INFO L124 PetriNetUnfolderBase]: 2035/17988 cut-off events. [2023-11-29 01:07:59,421 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2023-11-29 01:07:59,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20725 conditions, 17988 events. 2035/17988 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 233291 event pairs, 595 based on Foata normal form. 0/15902 useless extension candidates. Maximal degree in co-relation 20719. Up to 1412 conditions per place. [2023-11-29 01:07:59,586 INFO L140 encePairwiseOnDemand]: 472/484 looper letters, 41 selfloop transitions, 9 changer transitions 0/407 dead transitions. [2023-11-29 01:07:59,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 407 transitions, 940 flow [2023-11-29 01:07:59,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:59,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:07:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1202 transitions. [2023-11-29 01:07:59,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8278236914600551 [2023-11-29 01:07:59,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1202 transitions. [2023-11-29 01:07:59,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1202 transitions. [2023-11-29 01:07:59,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:59,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1202 transitions. [2023-11-29 01:07:59,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.6666666666667) internal successors, (1202), 3 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states 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 01:07:59,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states 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 01:07:59,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states 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 01:07:59,602 INFO L175 Difference]: Start difference. First operand has 380 places, 384 transitions, 784 flow. Second operand 3 states and 1202 transitions. [2023-11-29 01:07:59,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 407 transitions, 940 flow [2023-11-29 01:07:59,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 407 transitions, 940 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:07:59,611 INFO L231 Difference]: Finished difference. Result has 384 places, 393 transitions, 862 flow [2023-11-29 01:07:59,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=384, PETRI_TRANSITIONS=393} [2023-11-29 01:07:59,613 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -61 predicate places. [2023-11-29 01:07:59,613 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 393 transitions, 862 flow [2023-11-29 01:07:59,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states 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 01:07:59,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:59,615 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] [2023-11-29 01:07:59,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:07:59,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 01:07:59,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1894999635, now seen corresponding path program 1 times [2023-11-29 01:07:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:59,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825562977] [2023-11-29 01:07:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:59,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:00,013 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 01:08:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:08:00,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825562977] [2023-11-29 01:08:00,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825562977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:08:00,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:08:00,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:08:00,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817777112] [2023-11-29 01:08:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:00,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:08:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:08:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:08:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:08:00,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 484 [2023-11-29 01:08:00,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 393 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 333.6666666666667) internal successors, (2002), 6 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states 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 01:08:00,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:08:00,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 484 [2023-11-29 01:08:00,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:08:41,495 INFO L124 PetriNetUnfolderBase]: 88486/293670 cut-off events. [2023-11-29 01:08:41,495 INFO L125 PetriNetUnfolderBase]: For 4650/4655 co-relation queries the response was YES. [2023-11-29 01:08:42,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429039 conditions, 293670 events. 88486/293670 cut-off events. For 4650/4655 co-relation queries the response was YES. Maximal size of possible extension queue 4656. Compared 4662823 event pairs, 52016 based on Foata normal form. 0/268184 useless extension candidates. Maximal degree in co-relation 429031. Up to 102802 conditions per place. [2023-11-29 01:08:43,806 INFO L140 encePairwiseOnDemand]: 437/484 looper letters, 163 selfloop transitions, 130 changer transitions 0/608 dead transitions. [2023-11-29 01:08:43,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 608 transitions, 1918 flow [2023-11-29 01:08:43,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:08:43,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:08:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2286 transitions. [2023-11-29 01:08:43,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7871900826446281 [2023-11-29 01:08:43,814 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2286 transitions. [2023-11-29 01:08:43,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2286 transitions. [2023-11-29 01:08:43,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:08:43,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2286 transitions. [2023-11-29 01:08:43,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:08:43,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states 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 01:08:43,829 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states 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 01:08:43,830 INFO L175 Difference]: Start difference. First operand has 384 places, 393 transitions, 862 flow. Second operand 6 states and 2286 transitions. [2023-11-29 01:08:43,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 608 transitions, 1918 flow [2023-11-29 01:08:43,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 608 transitions, 1900 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:08:43,860 INFO L231 Difference]: Finished difference. Result has 391 places, 534 transitions, 1704 flow [2023-11-29 01:08:43,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1704, PETRI_PLACES=391, PETRI_TRANSITIONS=534} [2023-11-29 01:08:43,862 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -54 predicate places. [2023-11-29 01:08:43,862 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 534 transitions, 1704 flow [2023-11-29 01:08:43,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.6666666666667) internal successors, (2002), 6 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states 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 01:08:43,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:08:43,864 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:43,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:08:43,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 01:08:43,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash 770344652, now seen corresponding path program 1 times [2023-11-29 01:08:43,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:08:43,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531079593] [2023-11-29 01:08:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:43,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:08:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:08:43,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:08:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:08:43,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:08:43,902 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:08:43,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-11-29 01:08:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-11-29 01:08:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-11-29 01:08:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-11-29 01:08:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-11-29 01:08:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-11-29 01:08:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-11-29 01:08:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-11-29 01:08:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-11-29 01:08:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-11-29 01:08:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-11-29 01:08:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-11-29 01:08:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-11-29 01:08:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-11-29 01:08:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-11-29 01:08:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-11-29 01:08:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-11-29 01:08:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-11-29 01:08:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-11-29 01:08:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-11-29 01:08:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-11-29 01:08:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-11-29 01:08:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-11-29 01:08:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-11-29 01:08:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-11-29 01:08:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-11-29 01:08:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-11-29 01:08:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-11-29 01:08:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-11-29 01:08:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-11-29 01:08:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-11-29 01:08:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-11-29 01:08:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2023-11-29 01:08:43,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:08:43,912 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 01:08:43,913 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:08:43,913 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-29 01:08:44,028 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 01:08:44,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 584 places, 636 transitions, 1300 flow [2023-11-29 01:08:44,197 INFO L124 PetriNetUnfolderBase]: 65/686 cut-off events. [2023-11-29 01:08:44,197 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 01:08:44,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 686 events. 65/686 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3405 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 617. Up to 10 conditions per place. [2023-11-29 01:08:44,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 584 places, 636 transitions, 1300 flow [2023-11-29 01:08:44,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 584 places, 636 transitions, 1300 flow [2023-11-29 01:08:44,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:08:44,221 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;@75c3d315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:08:44,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-11-29 01:08:44,223 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:08:44,223 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-11-29 01:08:44,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:08:44,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:08:44,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:44,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-11-29 01:08:44,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -855283859, now seen corresponding path program 1 times [2023-11-29 01:08:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:08:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898525021] [2023-11-29 01:08:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:08:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:44,240 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 01:08:44,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:08:44,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898525021] [2023-11-29 01:08:44,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898525021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:08:44,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:08:44,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:08:44,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277479568] [2023-11-29 01:08:44,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:44,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:08:44,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:08:44,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:08:44,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:08:44,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 636 [2023-11-29 01:08:44,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 636 transitions, 1300 flow. Second operand has 2 states, 2 states have (on average 519.0) internal successors, (1038), 2 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states 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 01:08:44,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:08:44,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 636 [2023-11-29 01:08:44,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:08:49,223 INFO L124 PetriNetUnfolderBase]: 2496/24857 cut-off events. [2023-11-29 01:08:49,223 INFO L125 PetriNetUnfolderBase]: For 1422/1422 co-relation queries the response was YES. [2023-11-29 01:08:49,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28105 conditions, 24857 events. 2496/24857 cut-off events. For 1422/1422 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 337339 event pairs, 1720 based on Foata normal form. 4854/26761 useless extension candidates. Maximal degree in co-relation 21950. Up to 2501 conditions per place. [2023-11-29 01:08:49,575 INFO L140 encePairwiseOnDemand]: 550/636 looper letters, 20 selfloop transitions, 0 changer transitions 0/505 dead transitions. [2023-11-29 01:08:49,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 505 transitions, 1078 flow [2023-11-29 01:08:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:08:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 01:08:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1142 transitions. [2023-11-29 01:08:49,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8977987421383647 [2023-11-29 01:08:49,581 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1142 transitions. [2023-11-29 01:08:49,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1142 transitions. [2023-11-29 01:08:49,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:08:49,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1142 transitions. [2023-11-29 01:08:49,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 571.0) internal successors, (1142), 2 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states 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 01:08:49,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states 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 01:08:49,590 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states 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 01:08:49,590 INFO L175 Difference]: Start difference. First operand has 584 places, 636 transitions, 1300 flow. Second operand 2 states and 1142 transitions. [2023-11-29 01:08:49,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 505 transitions, 1078 flow [2023-11-29 01:08:49,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 505 transitions, 1072 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-29 01:08:49,601 INFO L231 Difference]: Finished difference. Result has 499 places, 505 transitions, 1032 flow [2023-11-29 01:08:49,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1032, PETRI_PLACES=499, PETRI_TRANSITIONS=505} [2023-11-29 01:08:49,605 INFO L281 CegarLoopForPetriNet]: 584 programPoint places, -85 predicate places. [2023-11-29 01:08:49,605 INFO L495 AbstractCegarLoop]: Abstraction has has 499 places, 505 transitions, 1032 flow [2023-11-29 01:08:49,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 519.0) internal successors, (1038), 2 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states 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 01:08:49,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:08:49,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:49,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:08:49,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-11-29 01:08:49,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1588955888, now seen corresponding path program 1 times [2023-11-29 01:08:49,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:08:49,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214859876] [2023-11-29 01:08:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:08:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:49,648 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 01:08:49,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:08:49,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214859876] [2023-11-29 01:08:49,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214859876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:08:49,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:08:49,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:08:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463466448] [2023-11-29 01:08:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:49,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:08:49,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:08:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:08:49,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:08:49,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 636 [2023-11-29 01:08:49,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 505 transitions, 1032 flow. Second operand has 3 states, 3 states have (on average 503.3333333333333) internal successors, (1510), 3 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states 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 01:08:49,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:08:49,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 636 [2023-11-29 01:08:49,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:09:23,216 INFO L124 PetriNetUnfolderBase]: 28340/180023 cut-off events. [2023-11-29 01:09:23,216 INFO L125 PetriNetUnfolderBase]: For 2995/2995 co-relation queries the response was YES. [2023-11-29 01:09:25,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216125 conditions, 180023 events. 28340/180023 cut-off events. For 2995/2995 co-relation queries the response was YES. Maximal size of possible extension queue 3565. Compared 3241202 event pairs, 8652 based on Foata normal form. 0/158721 useless extension candidates. Maximal degree in co-relation 216118. Up to 18636 conditions per place. [2023-11-29 01:09:25,874 INFO L140 encePairwiseOnDemand]: 620/636 looper letters, 55 selfloop transitions, 12 changer transitions 0/536 dead transitions. [2023-11-29 01:09:25,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 536 transitions, 1243 flow [2023-11-29 01:09:25,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:09:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:09:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1577 transitions. [2023-11-29 01:09:25,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8265199161425576 [2023-11-29 01:09:25,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1577 transitions. [2023-11-29 01:09:25,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1577 transitions. [2023-11-29 01:09:25,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:09:25,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1577 transitions. [2023-11-29 01:09:26,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 525.6666666666666) internal successors, (1577), 3 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states 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 01:09:26,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states 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 01:09:26,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states 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 01:09:26,027 INFO L175 Difference]: Start difference. First operand has 499 places, 505 transitions, 1032 flow. Second operand 3 states and 1577 transitions. [2023-11-29 01:09:26,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 536 transitions, 1243 flow [2023-11-29 01:09:26,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 536 transitions, 1243 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:09:26,040 INFO L231 Difference]: Finished difference. Result has 503 places, 517 transitions, 1136 flow [2023-11-29 01:09:26,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1136, PETRI_PLACES=503, PETRI_TRANSITIONS=517} [2023-11-29 01:09:26,042 INFO L281 CegarLoopForPetriNet]: 584 programPoint places, -81 predicate places. [2023-11-29 01:09:26,042 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 517 transitions, 1136 flow [2023-11-29 01:09:26,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.3333333333333) internal successors, (1510), 3 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states 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 01:09:26,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:09:26,043 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] [2023-11-29 01:09:26,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 01:09:26,044 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-11-29 01:09:26,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:26,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1504685632, now seen corresponding path program 1 times [2023-11-29 01:09:26,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:09:26,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640022867] [2023-11-29 01:09:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:26,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:09:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:26,304 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 01:09:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:09:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640022867] [2023-11-29 01:09:26,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640022867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:09:26,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:09:26,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:09:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142924595] [2023-11-29 01:09:26,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:26,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:09:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:09:26,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:09:26,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:09:26,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 636 [2023-11-29 01:09:26,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 517 transitions, 1136 flow. Second operand has 6 states, 6 states have (on average 437.6666666666667) internal successors, (2626), 6 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states 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 01:09:26,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:09:26,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 636 [2023-11-29 01:09:26,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand