./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.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_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/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_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/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_d48fca1b-b780-4149-93b6-a665c068dbf8/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 3aaecf4b84c8f01be47d1e624871b73f33541df72e3693614a0a3bb5cc7a97b5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:21:35,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:21:35,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 05:21:35,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:21:35,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:21:35,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:21:35,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:21:35,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:21:35,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:21:35,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:21:35,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:21:35,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:21:35,768 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:21:35,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:21:35,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:21:35,769 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:21:35,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:21:35,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:21:35,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:21:35,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:21:35,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:21:35,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:21:35,772 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 05:21:35,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:21:35,773 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:21:35,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:21:35,774 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:21:35,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:21:35,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:21:35,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:21:35,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:21:35,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:21:35,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:21:35,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:21:35,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:21:35,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:21:35,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:21:35,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:21:35,777 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:21:35,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:21:35,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:21:35,778 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_d48fca1b-b780-4149-93b6-a665c068dbf8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aaecf4b84c8f01be47d1e624871b73f33541df72e3693614a0a3bb5cc7a97b5 [2023-11-29 05:21:35,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:21:36,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:21:36,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:21:36,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:21:36,021 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:21:36,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i [2023-11-29 05:21:38,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:21:38,942 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:21:38,942 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i [2023-11-29 05:21:38,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/data/ee153df61/e3dd8dd439a047d189918b21ecb31059/FLAG1264a46f9 [2023-11-29 05:21:38,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/data/ee153df61/e3dd8dd439a047d189918b21ecb31059 [2023-11-29 05:21:38,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:21:38,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:21:38,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:21:38,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:21:38,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:21:38,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:21:38" (1/1) ... [2023-11-29 05:21:38,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec3074b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:38, skipping insertion in model container [2023-11-29 05:21:38,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:21:38" (1/1) ... [2023-11-29 05:21:39,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:21:39,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:21:39,351 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:21:39,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:21:39,433 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:21:39,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39 WrapperNode [2023-11-29 05:21:39,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:21:39,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:21:39,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:21:39,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:21:39,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,481 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 136 [2023-11-29 05:21:39,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:21:39,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:21:39,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:21:39,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:21:39,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:21:39,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:21:39,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:21:39,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:21:39,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (1/1) ... [2023-11-29 05:21:39,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:21:39,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:21:39,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:21:39,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48fca1b-b780-4149-93b6-a665c068dbf8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:21:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 05:21:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-29 05:21:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-29 05:21:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 05:21:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:21:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:21:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:21:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 05:21:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:21:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:21:39,589 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 05:21:39,717 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:21:39,719 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:21:39,928 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:21:40,015 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:21:40,015 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:21:40,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:21:40 BoogieIcfgContainer [2023-11-29 05:21:40,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:21:40,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:21:40,019 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:21:40,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:21:40,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:21:38" (1/3) ... [2023-11-29 05:21:40,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce46a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:21:40, skipping insertion in model container [2023-11-29 05:21:40,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:39" (2/3) ... [2023-11-29 05:21:40,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce46a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:21:40, skipping insertion in model container [2023-11-29 05:21:40,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:21:40" (3/3) ... [2023-11-29 05:21:40,025 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt.i [2023-11-29 05:21:40,033 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:21:40,043 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:21:40,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-29 05:21:40,044 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:21:40,098 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:21:40,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 113 transitions, 230 flow [2023-11-29 05:21:40,170 INFO L124 PetriNetUnfolderBase]: 10/124 cut-off events. [2023-11-29 05:21:40,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:21:40,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 10/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 196 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 92. Up to 4 conditions per place. [2023-11-29 05:21:40,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 113 transitions, 230 flow [2023-11-29 05:21:40,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 113 transitions, 230 flow [2023-11-29 05:21:40,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:21:40,195 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;@7da97dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:21:40,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-29 05:21:40,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:21:40,209 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2023-11-29 05:21:40,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:21:40,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:40,210 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, 1, 1, 1, 1, 1] [2023-11-29 05:21:40,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 05:21:40,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:40,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1263285151, now seen corresponding path program 1 times [2023-11-29 05:21:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:40,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118221574] [2023-11-29 05:21:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:40,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:40,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:21:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:40,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:21:40,381 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:21:40,382 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-29 05:21:40,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-29 05:21:40,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-29 05:21:40,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-29 05:21:40,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-29 05:21:40,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-29 05:21:40,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-29 05:21:40,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-29 05:21:40,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-29 05:21:40,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-29 05:21:40,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-29 05:21:40,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-29 05:21:40,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-29 05:21:40,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-29 05:21:40,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-29 05:21:40,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-29 05:21:40,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-29 05:21:40,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-29 05:21:40,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-29 05:21:40,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-29 05:21:40,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-29 05:21:40,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-29 05:21:40,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-29 05:21:40,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-29 05:21:40,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-29 05:21:40,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:21:40,391 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 05:21:40,394 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 05:21:40,394 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 05:21:40,446 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:21:40,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 193 transitions, 396 flow [2023-11-29 05:21:40,507 INFO L124 PetriNetUnfolderBase]: 19/217 cut-off events. [2023-11-29 05:21:40,507 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 05:21:40,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 217 events. 19/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 592 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 171. Up to 6 conditions per place. [2023-11-29 05:21:40,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 193 transitions, 396 flow [2023-11-29 05:21:40,516 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 193 transitions, 396 flow [2023-11-29 05:21:40,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:21:40,519 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;@7da97dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:21:40,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-29 05:21:40,533 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:21:40,533 INFO L124 PetriNetUnfolderBase]: 4/79 cut-off events. [2023-11-29 05:21:40,533 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 05:21:40,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:40,534 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, 1, 1, 1, 1, 1] [2023-11-29 05:21:40,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 05:21:40,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:40,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2132469376, now seen corresponding path program 1 times [2023-11-29 05:21:40,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:40,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29792009] [2023-11-29 05:21:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:40,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:40,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:21:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:40,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:21:40,614 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:21:40,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-29 05:21:40,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-29 05:21:40,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-29 05:21:40,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-29 05:21:40,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-29 05:21:40,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-29 05:21:40,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-29 05:21:40,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-29 05:21:40,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-29 05:21:40,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-29 05:21:40,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-29 05:21:40,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-29 05:21:40,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-29 05:21:40,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-29 05:21:40,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-29 05:21:40,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-29 05:21:40,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-29 05:21:40,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-29 05:21:40,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-29 05:21:40,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-29 05:21:40,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-29 05:21:40,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-29 05:21:40,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-29 05:21:40,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-29 05:21:40,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-29 05:21:40,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-29 05:21:40,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-29 05:21:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-29 05:21:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-29 05:21:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-29 05:21:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-29 05:21:40,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-29 05:21:40,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-29 05:21:40,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-29 05:21:40,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-29 05:21:40,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-29 05:21:40,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-29 05:21:40,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:21:40,623 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 05:21:40,624 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 05:21:40,625 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 05:21:40,682 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:21:40,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 273 transitions, 564 flow [2023-11-29 05:21:40,750 INFO L124 PetriNetUnfolderBase]: 28/310 cut-off events. [2023-11-29 05:21:40,751 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 05:21:40,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 28/310 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1075 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2023-11-29 05:21:40,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 273 transitions, 564 flow [2023-11-29 05:21:40,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 273 transitions, 564 flow [2023-11-29 05:21:40,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:21:40,765 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;@7da97dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:21:40,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-29 05:21:40,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:21:40,776 INFO L124 PetriNetUnfolderBase]: 7/115 cut-off events. [2023-11-29 05:21:40,776 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 05:21:40,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:40,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:40,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 05:21:40,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1352030562, now seen corresponding path program 1 times [2023-11-29 05:21:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:40,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863966007] [2023-11-29 05:21:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:40,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:40,875 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 05:21:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:40,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863966007] [2023-11-29 05:21:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863966007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:40,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:40,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:21:40,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445333985] [2023-11-29 05:21:40,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:40,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:21:40,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:40,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:21:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:21:40,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 273 [2023-11-29 05:21:40,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 273 transitions, 564 flow. Second operand has 2 states, 2 states have (on average 218.0) internal successors, (436), 2 states have internal predecessors, (436), 0 states have call successors, (0), 0 states 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 05:21:40,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:21:40,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 273 [2023-11-29 05:21:40,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:21:41,271 INFO L124 PetriNetUnfolderBase]: 272/1760 cut-off events. [2023-11-29 05:21:41,271 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2023-11-29 05:21:41,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 1760 events. 272/1760 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 14009 event pairs, 220 based on Foata normal form. 420/1912 useless extension candidates. Maximal degree in co-relation 478. Up to 376 conditions per place. [2023-11-29 05:21:41,289 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 15 selfloop transitions, 0 changer transitions 0/221 dead transitions. [2023-11-29 05:21:41,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 221 transitions, 490 flow [2023-11-29 05:21:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:21:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 05:21:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 487 transitions. [2023-11-29 05:21:41,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.891941391941392 [2023-11-29 05:21:41,304 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 487 transitions. [2023-11-29 05:21:41,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 487 transitions. [2023-11-29 05:21:41,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:21:41,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 487 transitions. [2023-11-29 05:21:41,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 05:21:41,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 05:21:41,318 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 05:21:41,320 INFO L175 Difference]: Start difference. First operand has 255 places, 273 transitions, 564 flow. Second operand 2 states and 487 transitions. [2023-11-29 05:21:41,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 221 transitions, 490 flow [2023-11-29 05:21:41,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 221 transitions, 488 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-29 05:21:41,330 INFO L231 Difference]: Finished difference. Result has 217 places, 221 transitions, 458 flow [2023-11-29 05:21:41,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=458, PETRI_PLACES=217, PETRI_TRANSITIONS=221} [2023-11-29 05:21:41,335 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -38 predicate places. [2023-11-29 05:21:41,335 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 221 transitions, 458 flow [2023-11-29 05:21:41,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 218.0) internal successors, (436), 2 states have internal predecessors, (436), 0 states have call successors, (0), 0 states 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 05:21:41,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:41,336 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, 1, 1, 1, 1, 1] [2023-11-29 05:21:41,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:21:41,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 05:21:41,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:41,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1192514832, now seen corresponding path program 1 times [2023-11-29 05:21:41,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:41,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734299802] [2023-11-29 05:21:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:41,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:21:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:41,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:21:41,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:21:41,393 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-29 05:21:41,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-29 05:21:41,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-29 05:21:41,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-29 05:21:41,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-29 05:21:41,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-29 05:21:41,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-29 05:21:41,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-29 05:21:41,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-29 05:21:41,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-29 05:21:41,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-29 05:21:41,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-29 05:21:41,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-29 05:21:41,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-29 05:21:41,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-29 05:21:41,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-29 05:21:41,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-29 05:21:41,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-29 05:21:41,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-29 05:21:41,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-29 05:21:41,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-29 05:21:41,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-29 05:21:41,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-29 05:21:41,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-29 05:21:41,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-29 05:21:41,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-29 05:21:41,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-29 05:21:41,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-29 05:21:41,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-29 05:21:41,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-29 05:21:41,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-29 05:21:41,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-29 05:21:41,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-29 05:21:41,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-29 05:21:41,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-29 05:21:41,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-29 05:21:41,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-29 05:21:41,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-29 05:21:41,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-29 05:21:41,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-29 05:21:41,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-29 05:21:41,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-29 05:21:41,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-29 05:21:41,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-29 05:21:41,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-29 05:21:41,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-29 05:21:41,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-29 05:21:41,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-29 05:21:41,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-29 05:21:41,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:21:41,403 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:21:41,404 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 05:21:41,404 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-29 05:21:41,467 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:21:41,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 353 transitions, 734 flow [2023-11-29 05:21:41,542 INFO L124 PetriNetUnfolderBase]: 37/403 cut-off events. [2023-11-29 05:21:41,542 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 05:21:41,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 403 events. 37/403 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1608 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 329. Up to 10 conditions per place. [2023-11-29 05:21:41,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 353 transitions, 734 flow [2023-11-29 05:21:41,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 353 transitions, 734 flow [2023-11-29 05:21:41,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:21:41,556 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;@7da97dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:21:41,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-29 05:21:41,565 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:21:41,565 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-11-29 05:21:41,565 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 05:21:41,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:41,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:41,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-29 05:21:41,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:41,566 INFO L85 PathProgramCache]: Analyzing trace with hash 470501101, now seen corresponding path program 1 times [2023-11-29 05:21:41,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:41,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773136753] [2023-11-29 05:21:41,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:41,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:41,636 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 05:21:41,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:41,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773136753] [2023-11-29 05:21:41,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773136753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:41,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:41,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:21:41,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284092716] [2023-11-29 05:21:41,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:41,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:21:41,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:41,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:21:41,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:21:41,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 353 [2023-11-29 05:21:41,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 353 transitions, 734 flow. Second operand has 2 states, 2 states have (on average 280.0) internal successors, (560), 2 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 05:21:41,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:21:41,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 353 [2023-11-29 05:21:41,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:21:43,235 INFO L124 PetriNetUnfolderBase]: 1880/8380 cut-off events. [2023-11-29 05:21:43,235 INFO L125 PetriNetUnfolderBase]: For 1578/1578 co-relation queries the response was YES. [2023-11-29 05:21:43,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11628 conditions, 8380 events. 1880/8380 cut-off events. For 1578/1578 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 91372 event pairs, 1720 based on Foata normal form. 2596/9674 useless extension candidates. Maximal degree in co-relation 2266. Up to 2501 conditions per place. [2023-11-29 05:21:43,408 INFO L140 encePairwiseOnDemand]: 303/353 looper letters, 20 selfloop transitions, 0 changer transitions 0/286 dead transitions. [2023-11-29 05:21:43,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 286 transitions, 640 flow [2023-11-29 05:21:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:21:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 05:21:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 628 transitions. [2023-11-29 05:21:43,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8895184135977338 [2023-11-29 05:21:43,411 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 628 transitions. [2023-11-29 05:21:43,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 628 transitions. [2023-11-29 05:21:43,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:21:43,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 628 transitions. [2023-11-29 05:21:43,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 314.0) internal successors, (628), 2 states have internal predecessors, (628), 0 states have call successors, (0), 0 states 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 05:21:43,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states 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 05:21:43,418 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states 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 05:21:43,419 INFO L175 Difference]: Start difference. First operand has 329 places, 353 transitions, 734 flow. Second operand 2 states and 628 transitions. [2023-11-29 05:21:43,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 286 transitions, 640 flow [2023-11-29 05:21:43,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 286 transitions, 634 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-29 05:21:43,428 INFO L231 Difference]: Finished difference. Result has 280 places, 286 transitions, 594 flow [2023-11-29 05:21:43,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=594, PETRI_PLACES=280, PETRI_TRANSITIONS=286} [2023-11-29 05:21:43,430 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -49 predicate places. [2023-11-29 05:21:43,430 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 286 transitions, 594 flow [2023-11-29 05:21:43,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 280.0) internal successors, (560), 2 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 05:21:43,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:43,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:43,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:21:43,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-29 05:21:43,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:43,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1180039793, now seen corresponding path program 1 times [2023-11-29 05:21:43,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:43,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852820297] [2023-11-29 05:21:43,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:43,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:43,502 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 05:21:43,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:43,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852820297] [2023-11-29 05:21:43,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852820297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:43,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:43,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:21:43,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666814602] [2023-11-29 05:21:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:43,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:43,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:43,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:43,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:43,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 353 [2023-11-29 05:21:43,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 286 transitions, 594 flow. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states 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 05:21:43,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:21:43,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 353 [2023-11-29 05:21:43,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:21:46,978 INFO L124 PetriNetUnfolderBase]: 4967/19862 cut-off events. [2023-11-29 05:21:46,978 INFO L125 PetriNetUnfolderBase]: For 1369/1369 co-relation queries the response was YES. [2023-11-29 05:21:47,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27360 conditions, 19862 events. 4967/19862 cut-off events. For 1369/1369 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 243356 event pairs, 3970 based on Foata normal form. 156/17017 useless extension candidates. Maximal degree in co-relation 27353. Up to 5843 conditions per place. [2023-11-29 05:21:47,170 INFO L140 encePairwiseOnDemand]: 350/353 looper letters, 41 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2023-11-29 05:21:47,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 302 transitions, 727 flow [2023-11-29 05:21:47,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:47,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:21:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2023-11-29 05:21:47,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8120868744098206 [2023-11-29 05:21:47,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 860 transitions. [2023-11-29 05:21:47,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 860 transitions. [2023-11-29 05:21:47,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:21:47,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 860 transitions. [2023-11-29 05:21:47,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 05:21:47,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states 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 05:21:47,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states 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 05:21:47,181 INFO L175 Difference]: Start difference. First operand has 280 places, 286 transitions, 594 flow. Second operand 3 states and 860 transitions. [2023-11-29 05:21:47,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 302 transitions, 727 flow [2023-11-29 05:21:47,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 302 transitions, 727 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 05:21:47,188 INFO L231 Difference]: Finished difference. Result has 283 places, 287 transitions, 606 flow [2023-11-29 05:21:47,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=283, PETRI_TRANSITIONS=287} [2023-11-29 05:21:47,189 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -46 predicate places. [2023-11-29 05:21:47,189 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 287 transitions, 606 flow [2023-11-29 05:21:47,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states 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 05:21:47,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:47,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:47,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:21:47,191 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-29 05:21:47,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash -714760908, now seen corresponding path program 1 times [2023-11-29 05:21:47,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:47,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446514592] [2023-11-29 05:21:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:47,751 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 05:21:47,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:47,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446514592] [2023-11-29 05:21:47,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446514592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:47,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:47,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:21:47,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524611895] [2023-11-29 05:21:47,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:47,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:21:47,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:47,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:21:47,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:21:48,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 353 [2023-11-29 05:21:48,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 287 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states 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 05:21:48,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:21:48,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 353 [2023-11-29 05:21:48,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:21:52,344 INFO L124 PetriNetUnfolderBase]: 8178/25222 cut-off events. [2023-11-29 05:21:52,344 INFO L125 PetriNetUnfolderBase]: For 3019/3019 co-relation queries the response was YES. [2023-11-29 05:21:52,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38340 conditions, 25222 events. 8178/25222 cut-off events. For 3019/3019 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 298694 event pairs, 3595 based on Foata normal form. 0/21869 useless extension candidates. Maximal degree in co-relation 38331. Up to 5313 conditions per place. [2023-11-29 05:21:52,615 INFO L140 encePairwiseOnDemand]: 347/353 looper letters, 86 selfloop transitions, 6 changer transitions 0/346 dead transitions. [2023-11-29 05:21:52,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 346 transitions, 968 flow [2023-11-29 05:21:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:21:52,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:21:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1694 transitions. [2023-11-29 05:21:52,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7998111425873465 [2023-11-29 05:21:52,620 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1694 transitions. [2023-11-29 05:21:52,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1694 transitions. [2023-11-29 05:21:52,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:21:52,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1694 transitions. [2023-11-29 05:21:52,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 282.3333333333333) internal successors, (1694), 6 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states 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 05:21:52,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states 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 05:21:52,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states 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 05:21:52,632 INFO L175 Difference]: Start difference. First operand has 283 places, 287 transitions, 606 flow. Second operand 6 states and 1694 transitions. [2023-11-29 05:21:52,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 346 transitions, 968 flow [2023-11-29 05:21:52,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 346 transitions, 966 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:21:52,640 INFO L231 Difference]: Finished difference. Result has 286 places, 286 transitions, 614 flow [2023-11-29 05:21:52,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=614, PETRI_PLACES=286, PETRI_TRANSITIONS=286} [2023-11-29 05:21:52,641 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -43 predicate places. [2023-11-29 05:21:52,641 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 286 transitions, 614 flow [2023-11-29 05:21:52,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states 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 05:21:52,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:52,642 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 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 05:21:52,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:21:52,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-29 05:21:52,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:52,643 INFO L85 PathProgramCache]: Analyzing trace with hash 283695133, now seen corresponding path program 1 times [2023-11-29 05:21:52,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:52,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999598008] [2023-11-29 05:21:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:52,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:52,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:21:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:21:52,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:21:52,680 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:21:52,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2023-11-29 05:21:52,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2023-11-29 05:21:52,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2023-11-29 05:21:52,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2023-11-29 05:21:52,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2023-11-29 05:21:52,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2023-11-29 05:21:52,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2023-11-29 05:21:52,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2023-11-29 05:21:52,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2023-11-29 05:21:52,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2023-11-29 05:21:52,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2023-11-29 05:21:52,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2023-11-29 05:21:52,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2023-11-29 05:21:52,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2023-11-29 05:21:52,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2023-11-29 05:21:52,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2023-11-29 05:21:52,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:21:52,688 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 05:21:52,688 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 05:21:52,688 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-11-29 05:21:52,744 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:21:52,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 433 transitions, 906 flow [2023-11-29 05:21:52,828 INFO L124 PetriNetUnfolderBase]: 46/496 cut-off events. [2023-11-29 05:21:52,828 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-29 05:21:52,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 496 events. 46/496 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2113 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 416. Up to 12 conditions per place. [2023-11-29 05:21:52,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 433 transitions, 906 flow [2023-11-29 05:21:52,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 403 places, 433 transitions, 906 flow [2023-11-29 05:21:52,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:21:52,848 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;@7da97dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:21:52,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2023-11-29 05:21:52,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:21:52,857 INFO L124 PetriNetUnfolderBase]: 7/115 cut-off events. [2023-11-29 05:21:52,857 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-29 05:21:52,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:21:52,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:52,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2023-11-29 05:21:52,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash 366915004, now seen corresponding path program 1 times [2023-11-29 05:21:52,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:52,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84076477] [2023-11-29 05:21:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:52,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:52,878 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 05:21:52,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:52,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84076477] [2023-11-29 05:21:52,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84076477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:52,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:52,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:21:52,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697510242] [2023-11-29 05:21:52,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:52,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:21:52,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:52,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:21:52,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:21:52,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 433 [2023-11-29 05:21:52,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 433 transitions, 906 flow. Second operand has 2 states, 2 states have (on average 342.0) internal successors, (684), 2 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 05:21:52,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:21:52,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 433 [2023-11-29 05:21:52,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:22:00,838 INFO L124 PetriNetUnfolderBase]: 12348/43287 cut-off events. [2023-11-29 05:22:00,838 INFO L125 PetriNetUnfolderBase]: For 11961/11961 co-relation queries the response was YES. [2023-11-29 05:22:01,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63411 conditions, 43287 events. 12348/43287 cut-off events. For 11961/11961 co-relation queries the response was YES. Maximal size of possible extension queue 1290. Compared 584602 event pairs, 11720 based on Foata normal form. 15899/52753 useless extension candidates. Maximal degree in co-relation 11761. Up to 15626 conditions per place. [2023-11-29 05:22:01,500 INFO L140 encePairwiseOnDemand]: 371/433 looper letters, 25 selfloop transitions, 0 changer transitions 0/351 dead transitions. [2023-11-29 05:22:01,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 351 transitions, 792 flow [2023-11-29 05:22:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:22:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 05:22:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 769 transitions. [2023-11-29 05:22:01,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8879907621247113 [2023-11-29 05:22:01,504 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 769 transitions. [2023-11-29 05:22:01,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 769 transitions. [2023-11-29 05:22:01,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:22:01,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 769 transitions. [2023-11-29 05:22:01,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 384.5) internal successors, (769), 2 states have internal predecessors, (769), 0 states have call successors, (0), 0 states 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 05:22:01,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states 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 05:22:01,510 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states 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 05:22:01,510 INFO L175 Difference]: Start difference. First operand has 403 places, 433 transitions, 906 flow. Second operand 2 states and 769 transitions. [2023-11-29 05:22:01,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 351 transitions, 792 flow [2023-11-29 05:22:01,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 351 transitions, 780 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-11-29 05:22:01,522 INFO L231 Difference]: Finished difference. Result has 343 places, 351 transitions, 730 flow [2023-11-29 05:22:01,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=730, PETRI_PLACES=343, PETRI_TRANSITIONS=351} [2023-11-29 05:22:01,523 INFO L281 CegarLoopForPetriNet]: 403 programPoint places, -60 predicate places. [2023-11-29 05:22:01,523 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 351 transitions, 730 flow [2023-11-29 05:22:01,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 342.0) internal successors, (684), 2 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 05:22:01,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:22:01,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:22:01,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:22:01,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2023-11-29 05:22:01,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash 418059712, now seen corresponding path program 1 times [2023-11-29 05:22:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:01,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93826368] [2023-11-29 05:22:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:01,564 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 05:22:01,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:01,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93826368] [2023-11-29 05:22:01,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93826368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:01,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:01,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:01,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168796391] [2023-11-29 05:22:01,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:01,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:01,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:01,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 433 [2023-11-29 05:22:01,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 351 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states 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 05:22:01,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:22:01,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 433 [2023-11-29 05:22:01,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:22:20,775 INFO L124 PetriNetUnfolderBase]: 31845/106318 cut-off events. [2023-11-29 05:22:20,775 INFO L125 PetriNetUnfolderBase]: For 7117/7117 co-relation queries the response was YES. [2023-11-29 05:22:21,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151317 conditions, 106318 events. 31845/106318 cut-off events. For 7117/7117 co-relation queries the response was YES. Maximal size of possible extension queue 2608. Compared 1580220 event pairs, 26720 based on Foata normal form. 781/91476 useless extension candidates. Maximal degree in co-relation 151309. Up to 36093 conditions per place. [2023-11-29 05:22:22,373 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 51 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2023-11-29 05:22:22,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 372 transitions, 898 flow [2023-11-29 05:22:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:22:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1056 transitions. [2023-11-29 05:22:22,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.812933025404157 [2023-11-29 05:22:22,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1056 transitions. [2023-11-29 05:22:22,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1056 transitions. [2023-11-29 05:22:22,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:22:22,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1056 transitions. [2023-11-29 05:22:22,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states 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 05:22:22,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states 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 05:22:22,383 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states 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 05:22:22,383 INFO L175 Difference]: Start difference. First operand has 343 places, 351 transitions, 730 flow. Second operand 3 states and 1056 transitions. [2023-11-29 05:22:22,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 372 transitions, 898 flow [2023-11-29 05:22:22,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 372 transitions, 898 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 05:22:22,399 INFO L231 Difference]: Finished difference. Result has 346 places, 352 transitions, 742 flow [2023-11-29 05:22:22,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=346, PETRI_TRANSITIONS=352} [2023-11-29 05:22:22,400 INFO L281 CegarLoopForPetriNet]: 403 programPoint places, -57 predicate places. [2023-11-29 05:22:22,400 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 352 transitions, 742 flow [2023-11-29 05:22:22,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states 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 05:22:22,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:22:22,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:22:22,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 05:22:22,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2023-11-29 05:22:22,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1960843097, now seen corresponding path program 1 times [2023-11-29 05:22:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:22,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233575833] [2023-11-29 05:22:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:22,626 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 05:22:22,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:22,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233575833] [2023-11-29 05:22:22,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233575833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:22,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:22,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:22:22,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684874558] [2023-11-29 05:22:22,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:22,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:22:22,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:22,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:22:22,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:22:22,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 433 [2023-11-29 05:22:22,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 352 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 330.6666666666667) internal successors, (1984), 6 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states 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 05:22:22,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:22:22,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 433 [2023-11-29 05:22:22,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:22:47,109 INFO L124 PetriNetUnfolderBase]: 52684/133037 cut-off events. [2023-11-29 05:22:47,110 INFO L125 PetriNetUnfolderBase]: For 15156/15156 co-relation queries the response was YES. [2023-11-29 05:22:48,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211156 conditions, 133037 events. 52684/133037 cut-off events. For 15156/15156 co-relation queries the response was YES. Maximal size of possible extension queue 3793. Compared 1808390 event pairs, 24220 based on Foata normal form. 0/116079 useless extension candidates. Maximal degree in co-relation 211146. Up to 32813 conditions per place. [2023-11-29 05:22:49,473 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 111 selfloop transitions, 6 changer transitions 0/431 dead transitions. [2023-11-29 05:22:49,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 431 transitions, 1214 flow [2023-11-29 05:22:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:22:49,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:22:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2091 transitions. [2023-11-29 05:22:49,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8048498845265589 [2023-11-29 05:22:49,478 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2091 transitions. [2023-11-29 05:22:49,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2091 transitions. [2023-11-29 05:22:49,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:22:49,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2091 transitions. [2023-11-29 05:22:49,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states 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 05:22:49,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states 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 05:22:49,488 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states 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 05:22:49,488 INFO L175 Difference]: Start difference. First operand has 346 places, 352 transitions, 742 flow. Second operand 6 states and 2091 transitions. [2023-11-29 05:22:49,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 431 transitions, 1214 flow [2023-11-29 05:22:49,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 431 transitions, 1212 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:22:49,509 INFO L231 Difference]: Finished difference. Result has 349 places, 351 transitions, 750 flow [2023-11-29 05:22:49,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=750, PETRI_PLACES=349, PETRI_TRANSITIONS=351} [2023-11-29 05:22:49,510 INFO L281 CegarLoopForPetriNet]: 403 programPoint places, -54 predicate places. [2023-11-29 05:22:49,510 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 351 transitions, 750 flow [2023-11-29 05:22:49,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.6666666666667) internal successors, (1984), 6 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states 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 05:22:49,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:22:49,511 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, 1, 1, 1, 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 05:22:49,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 05:22:49,511 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2023-11-29 05:22:49,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash 909343542, now seen corresponding path program 1 times [2023-11-29 05:22:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:49,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358663070] [2023-11-29 05:22:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 05:22:49,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:49,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358663070] [2023-11-29 05:22:49,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358663070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:49,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:49,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:49,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701530767] [2023-11-29 05:22:49,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:49,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:49,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:49,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:49,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:49,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 433 [2023-11-29 05:22:49,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 351 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states 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 05:22:49,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:22:49,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 433 [2023-11-29 05:22:49,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:23:08,187 INFO L124 PetriNetUnfolderBase]: 31839/102978 cut-off events. [2023-11-29 05:23:08,187 INFO L125 PetriNetUnfolderBase]: For 6858/6858 co-relation queries the response was YES. [2023-11-29 05:23:09,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147957 conditions, 102978 events. 31839/102978 cut-off events. For 6858/6858 co-relation queries the response was YES. Maximal size of possible extension queue 2710. Compared 1517985 event pairs, 26714 based on Foata normal form. 780/88747 useless extension candidates. Maximal degree in co-relation 147947. Up to 36080 conditions per place. [2023-11-29 05:23:10,160 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 50 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2023-11-29 05:23:10,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 371 transitions, 909 flow [2023-11-29 05:23:10,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:23:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:23:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1055 transitions. [2023-11-29 05:23:10,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8121632024634334 [2023-11-29 05:23:10,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1055 transitions. [2023-11-29 05:23:10,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1055 transitions. [2023-11-29 05:23:10,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:23:10,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1055 transitions. [2023-11-29 05:23:10,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states 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 05:23:10,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states 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 05:23:10,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states 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 05:23:10,173 INFO L175 Difference]: Start difference. First operand has 349 places, 351 transitions, 750 flow. Second operand 3 states and 1055 transitions. [2023-11-29 05:23:10,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 371 transitions, 909 flow [2023-11-29 05:23:10,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 371 transitions, 897 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 05:23:10,194 INFO L231 Difference]: Finished difference. Result has 347 places, 352 transitions, 750 flow [2023-11-29 05:23:10,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=347, PETRI_TRANSITIONS=352} [2023-11-29 05:23:10,196 INFO L281 CegarLoopForPetriNet]: 403 programPoint places, -56 predicate places. [2023-11-29 05:23:10,196 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 352 transitions, 750 flow [2023-11-29 05:23:10,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states 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 05:23:10,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:23:10,197 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, 1, 1, 1, 1, 1, 1, 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 05:23:10,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 05:23:10,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2023-11-29 05:23:10,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:10,198 INFO L85 PathProgramCache]: Analyzing trace with hash 922080514, now seen corresponding path program 1 times [2023-11-29 05:23:10,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:10,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492987666] [2023-11-29 05:23:10,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:10,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 05:23:10,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:10,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492987666] [2023-11-29 05:23:10,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492987666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:10,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:10,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:23:10,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539913476] [2023-11-29 05:23:10,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:10,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:23:10,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:10,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:23:10,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:23:10,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 433 [2023-11-29 05:23:10,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 352 transitions, 750 flow. Second operand has 6 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states 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 05:23:10,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:23:10,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 433 [2023-11-29 05:23:10,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:23:35,452 INFO L124 PetriNetUnfolderBase]: 52644/132697 cut-off events. [2023-11-29 05:23:35,453 INFO L125 PetriNetUnfolderBase]: For 14836/14836 co-relation queries the response was YES. [2023-11-29 05:23:36,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210742 conditions, 132697 events. 52644/132697 cut-off events. For 14836/14836 co-relation queries the response was YES. Maximal size of possible extension queue 4138. Compared 1819896 event pairs, 22967 based on Foata normal form. 0/116383 useless extension candidates. Maximal degree in co-relation 210731. Up to 32802 conditions per place. [2023-11-29 05:23:37,755 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 107 selfloop transitions, 6 changer transitions 0/427 dead transitions. [2023-11-29 05:23:37,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 427 transitions, 1186 flow [2023-11-29 05:23:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:23:37,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:23:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2087 transitions. [2023-11-29 05:23:37,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8033102386451116 [2023-11-29 05:23:37,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2087 transitions. [2023-11-29 05:23:37,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2087 transitions. [2023-11-29 05:23:37,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:23:37,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2087 transitions. [2023-11-29 05:23:37,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 347.8333333333333) internal successors, (2087), 6 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states 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 05:23:37,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states 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 05:23:37,769 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states 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 05:23:37,769 INFO L175 Difference]: Start difference. First operand has 347 places, 352 transitions, 750 flow. Second operand 6 states and 2087 transitions. [2023-11-29 05:23:37,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 427 transitions, 1186 flow [2023-11-29 05:23:37,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 427 transitions, 1184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:23:37,786 INFO L231 Difference]: Finished difference. Result has 350 places, 351 transitions, 758 flow [2023-11-29 05:23:37,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=758, PETRI_PLACES=350, PETRI_TRANSITIONS=351} [2023-11-29 05:23:37,787 INFO L281 CegarLoopForPetriNet]: 403 programPoint places, -53 predicate places. [2023-11-29 05:23:37,787 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 351 transitions, 758 flow [2023-11-29 05:23:37,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states 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 05:23:37,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:23:37,788 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:23:37,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 05:23:37,788 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2023-11-29 05:23:37,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:37,789 INFO L85 PathProgramCache]: Analyzing trace with hash 504979649, now seen corresponding path program 1 times [2023-11-29 05:23:37,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:37,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473823591] [2023-11-29 05:23:37,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:37,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:23:37,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:23:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:23:37,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:23:37,822 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:23:37,822 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2023-11-29 05:23:37,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2023-11-29 05:23:37,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2023-11-29 05:23:37,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2023-11-29 05:23:37,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2023-11-29 05:23:37,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2023-11-29 05:23:37,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2023-11-29 05:23:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2023-11-29 05:23:37,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2023-11-29 05:23:37,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2023-11-29 05:23:37,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2023-11-29 05:23:37,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2023-11-29 05:23:37,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2023-11-29 05:23:37,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2023-11-29 05:23:37,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2023-11-29 05:23:37,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2023-11-29 05:23:37,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2023-11-29 05:23:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2023-11-29 05:23:37,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2023-11-29 05:23:37,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2023-11-29 05:23:37,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2023-11-29 05:23:37,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2023-11-29 05:23:37,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2023-11-29 05:23:37,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 05:23:37,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-29 05:23:37,833 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 05:23:37,833 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-11-29 05:23:38,049 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:23:38,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 477 places, 513 transitions, 1080 flow [2023-11-29 05:23:38,194 INFO L124 PetriNetUnfolderBase]: 55/589 cut-off events. [2023-11-29 05:23:38,195 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-29 05:23:38,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 589 events. 55/589 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2665 event pairs, 0 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 515. Up to 14 conditions per place. [2023-11-29 05:23:38,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 477 places, 513 transitions, 1080 flow [2023-11-29 05:23:38,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 477 places, 513 transitions, 1080 flow [2023-11-29 05:23:38,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:23:38,212 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;@7da97dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:23:38,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2023-11-29 05:23:38,220 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:23:38,221 INFO L124 PetriNetUnfolderBase]: 7/115 cut-off events. [2023-11-29 05:23:38,221 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-29 05:23:38,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:23:38,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:23:38,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-11-29 05:23:38,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:38,221 INFO L85 PathProgramCache]: Analyzing trace with hash 865876811, now seen corresponding path program 1 times [2023-11-29 05:23:38,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:38,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582780410] [2023-11-29 05:23:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:38,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:38,242 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 05:23:38,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:38,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582780410] [2023-11-29 05:23:38,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582780410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:23:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423811650] [2023-11-29 05:23:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:38,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:23:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:23:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:23:38,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 513 [2023-11-29 05:23:38,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 513 transitions, 1080 flow. Second operand has 2 states, 2 states have (on average 404.0) internal successors, (808), 2 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 05:23:38,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:23:38,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 513 [2023-11-29 05:23:38,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:24:25,283 INFO L124 PetriNetUnfolderBase]: 77116/229629 cut-off events. [2023-11-29 05:24:25,283 INFO L125 PetriNetUnfolderBase]: For 84921/84921 co-relation queries the response was YES. [2023-11-29 05:24:28,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349754 conditions, 229629 events. 77116/229629 cut-off events. For 84921/84921 co-relation queries the response was YES. Maximal size of possible extension queue 6049. Compared 3604798 event pairs, 74220 based on Foata normal form. 94849/292445 useless extension candidates. Maximal degree in co-relation 64168. Up to 93751 conditions per place. [2023-11-29 05:24:30,841 INFO L140 encePairwiseOnDemand]: 439/513 looper letters, 30 selfloop transitions, 0 changer transitions 0/416 dead transitions. [2023-11-29 05:24:30,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 416 transitions, 946 flow [2023-11-29 05:24:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:24:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 05:24:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 910 transitions. [2023-11-29 05:24:30,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8869395711500975 [2023-11-29 05:24:30,844 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 910 transitions. [2023-11-29 05:24:30,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 910 transitions. [2023-11-29 05:24:30,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:24:30,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 910 transitions. [2023-11-29 05:24:30,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 455.0) internal successors, (910), 2 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 05:24:30,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states 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 05:24:30,850 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states 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 05:24:30,850 INFO L175 Difference]: Start difference. First operand has 477 places, 513 transitions, 1080 flow. Second operand 2 states and 910 transitions. [2023-11-29 05:24:30,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 416 transitions, 946 flow [2023-11-29 05:24:30,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 416 transitions, 926 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-11-29 05:24:30,875 INFO L231 Difference]: Finished difference. Result has 406 places, 416 transitions, 866 flow [2023-11-29 05:24:30,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=866, PETRI_PLACES=406, PETRI_TRANSITIONS=416} [2023-11-29 05:24:30,876 INFO L281 CegarLoopForPetriNet]: 477 programPoint places, -71 predicate places. [2023-11-29 05:24:30,876 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 416 transitions, 866 flow [2023-11-29 05:24:30,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 404.0) internal successors, (808), 2 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 05:24:30,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:24:30,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:24:30,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:24:30,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-11-29 05:24:30,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1115964497, now seen corresponding path program 1 times [2023-11-29 05:24:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:30,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481924255] [2023-11-29 05:24:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:30,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:24:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481924255] [2023-11-29 05:24:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481924255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:30,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:30,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:24:30,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345880260] [2023-11-29 05:24:30,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:30,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:24:30,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:30,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:24:30,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:30,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 513 [2023-11-29 05:24:30,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 416 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states 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 05:24:30,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:24:30,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 513 [2023-11-29 05:24:30,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand