./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/29_conditionals_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/29_conditionals_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl --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 c3f647420f42d7fdb333957b618cdd528a4c5a4cecdb35105a1a2630df70b3d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:04,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:04,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:17:04,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:04,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:04,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:04,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:04,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:04,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:04,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:04,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:04,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:04,738 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:04,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:04,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:04,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:04,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:04,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:04,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:04,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:04,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:04,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:04,744 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:17:04,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:04,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:04,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:04,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:04,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:04,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:04,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:04,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:04,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:04,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:04,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:04,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:04,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:04,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:04,750 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:04,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:04,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:04,751 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:04,751 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_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3f647420f42d7fdb333957b618cdd528a4c5a4cecdb35105a1a2630df70b3d6 [2023-11-12 02:17:04,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:05,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:05,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:05,011 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:05,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:05,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-ext/29_conditionals_vs.i [2023-11-12 02:17:08,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:08,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:08,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/sv-benchmarks/c/pthread-ext/29_conditionals_vs.i [2023-11-12 02:17:08,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/data/bbadedf96/5ea966b58bfb4235a6d7d66995ee7960/FLAG9b0a75e9a [2023-11-12 02:17:08,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/data/bbadedf96/5ea966b58bfb4235a6d7d66995ee7960 [2023-11-12 02:17:08,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:08,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:08,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:08,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:08,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:08,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:08" (1/1) ... [2023-11-12 02:17:08,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6bc2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:08, skipping insertion in model container [2023-11-12 02:17:08,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:08" (1/1) ... [2023-11-12 02:17:08,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:09,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:09,169 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:09,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:09,265 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:09,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09 WrapperNode [2023-11-12 02:17:09,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:09,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:09,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:09,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:09,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,323 INFO L138 Inliner]: procedures = 170, calls = 15, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 75 [2023-11-12 02:17:09,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:09,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:09,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:09,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:09,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:09,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:09,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:09,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:09,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (1/1) ... [2023-11-12 02:17:09,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:09,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:09,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:09,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ee9483-b96b-40b2-8b31-0c3da4976102/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-12 02:17:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-12 02:17:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:09,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:17:09,679 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:09,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:09,852 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:09,944 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:09,944 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:17:09,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:09 BoogieIcfgContainer [2023-11-12 02:17:09,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:09,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:09,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:09,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:09,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:08" (1/3) ... [2023-11-12 02:17:09,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11be8428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:09, skipping insertion in model container [2023-11-12 02:17:09,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:09" (2/3) ... [2023-11-12 02:17:09,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11be8428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:09, skipping insertion in model container [2023-11-12 02:17:09,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:09" (3/3) ... [2023-11-12 02:17:09,959 INFO L112 eAbstractionObserver]: Analyzing ICFG 29_conditionals_vs.i [2023-11-12 02:17:09,970 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:17:09,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:09,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:17:09,985 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:17:10,063 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:10,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 62 transitions, 128 flow [2023-11-12 02:17:10,183 INFO L124 PetriNetUnfolderBase]: 7/73 cut-off events. [2023-11-12 02:17:10,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:10,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 7/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2023-11-12 02:17:10,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 62 transitions, 128 flow [2023-11-12 02:17:10,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 62 transitions, 128 flow [2023-11-12 02:17:10,203 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:10,217 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 62 transitions, 128 flow [2023-11-12 02:17:10,221 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 62 transitions, 128 flow [2023-11-12 02:17:10,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 62 transitions, 128 flow [2023-11-12 02:17:10,249 INFO L124 PetriNetUnfolderBase]: 7/73 cut-off events. [2023-11-12 02:17:10,249 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:10,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 7/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2023-11-12 02:17:10,256 INFO L119 LiptonReduction]: Number of co-enabled transitions 1036 [2023-11-12 02:17:12,855 INFO L134 LiptonReduction]: Checked pairs total: 845 [2023-11-12 02:17:12,856 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-11-12 02:17:12,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:12,882 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:12,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-12 02:17:12,886 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:12,886 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:17:12,887 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:12,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:12,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:12,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:17:12,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash 10976592, now seen corresponding path program 1 times [2023-11-12 02:17:12,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:12,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132073957] [2023-11-12 02:17:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:12,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:13,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:13,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132073957] [2023-11-12 02:17:13,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132073957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:13,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:13,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:13,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660941302] [2023-11-12 02:17:13,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:13,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:13,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:13,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:13,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:13,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2023-11-12 02:17:13,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:13,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:13,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2023-11-12 02:17:13,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:13,195 INFO L124 PetriNetUnfolderBase]: 2/11 cut-off events. [2023-11-12 02:17:13,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:13,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-11-12 02:17:13,197 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 5 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2023-11-12 02:17:13,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 26 flow [2023-11-12 02:17:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:13,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 110 transitions. [2023-11-12 02:17:13,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2023-11-12 02:17:13,220 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 110 transitions. [2023-11-12 02:17:13,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 110 transitions. [2023-11-12 02:17:13,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:13,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 110 transitions. [2023-11-12 02:17:13,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:13,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:13,244 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:13,247 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 26 flow. Second operand 2 states and 110 transitions. [2023-11-12 02:17:13,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 26 flow [2023-11-12 02:17:13,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:13,253 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 16 flow [2023-11-12 02:17:13,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=16, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2023-11-12 02:17:13,263 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-11-12 02:17:13,264 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 16 flow [2023-11-12 02:17:13,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:13,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:13,265 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:17:13,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:13,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:17:13,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:13,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1958538070, now seen corresponding path program 1 times [2023-11-12 02:17:13,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:13,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540538151] [2023-11-12 02:17:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:13,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:13,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:13,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:13,362 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:13,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-12 02:17:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-12 02:17:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-12 02:17:13,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-12 02:17:13,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-12 02:17:13,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-12 02:17:13,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-12 02:17:13,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-12 02:17:13,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-12 02:17:13,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:13,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:13,373 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:13,373 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:17:13,416 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:13,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 210 flow [2023-11-12 02:17:13,455 INFO L124 PetriNetUnfolderBase]: 13/124 cut-off events. [2023-11-12 02:17:13,455 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:17:13,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 124 events. 13/124 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 87. Up to 6 conditions per place. [2023-11-12 02:17:13,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 100 transitions, 210 flow [2023-11-12 02:17:13,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 100 transitions, 210 flow [2023-11-12 02:17:13,460 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:13,461 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 100 transitions, 210 flow [2023-11-12 02:17:13,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 100 transitions, 210 flow [2023-11-12 02:17:13,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 210 flow [2023-11-12 02:17:13,490 INFO L124 PetriNetUnfolderBase]: 13/124 cut-off events. [2023-11-12 02:17:13,491 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:17:13,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 124 events. 13/124 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 87. Up to 6 conditions per place. [2023-11-12 02:17:13,498 INFO L119 LiptonReduction]: Number of co-enabled transitions 4884 [2023-11-12 02:17:16,556 INFO L134 LiptonReduction]: Checked pairs total: 4412 [2023-11-12 02:17:16,557 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-11-12 02:17:16,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:16,566 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:16,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-12 02:17:16,571 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:16,571 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:17:16,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:16,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:16,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:16,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:17:16,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash 18136752, now seen corresponding path program 1 times [2023-11-12 02:17:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104645249] [2023-11-12 02:17:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:16,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:16,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104645249] [2023-11-12 02:17:16,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104645249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:16,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:16,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:16,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117836297] [2023-11-12 02:17:16,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:16,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:16,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:16,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:16,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:16,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 211 [2023-11-12 02:17:16,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 50 flow. Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:16,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 211 [2023-11-12 02:17:16,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:16,640 INFO L124 PetriNetUnfolderBase]: 20/57 cut-off events. [2023-11-12 02:17:16,641 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-12 02:17:16,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 57 events. 20/57 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 158 event pairs, 20 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 28. Up to 47 conditions per place. [2023-11-12 02:17:16,642 INFO L140 encePairwiseOnDemand]: 202/211 looper letters, 8 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-11-12 02:17:16,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 11 transitions, 48 flow [2023-11-12 02:17:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:16,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2023-11-12 02:17:16,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4099526066350711 [2023-11-12 02:17:16,646 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 173 transitions. [2023-11-12 02:17:16,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 173 transitions. [2023-11-12 02:17:16,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:16,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 173 transitions. [2023-11-12 02:17:16,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,651 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,651 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 50 flow. Second operand 2 states and 173 transitions. [2023-11-12 02:17:16,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 11 transitions, 48 flow [2023-11-12 02:17:16,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 48 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:16,653 INFO L231 Difference]: Finished difference. Result has 17 places, 11 transitions, 32 flow [2023-11-12 02:17:16,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=17, PETRI_TRANSITIONS=11} [2023-11-12 02:17:16,654 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -8 predicate places. [2023-11-12 02:17:16,654 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 32 flow [2023-11-12 02:17:16,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:16,655 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 02:17:16,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:17:16,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:17:16,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:16,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1022169892, now seen corresponding path program 1 times [2023-11-12 02:17:16,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:16,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679265237] [2023-11-12 02:17:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:16,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:16,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:16,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:16,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:16,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2023-11-12 02:17:16,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-11-12 02:17:16,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-11-12 02:17:16,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-11-12 02:17:16,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-11-12 02:17:16,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-11-12 02:17:16,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-11-12 02:17:16,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-11-12 02:17:16,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-11-12 02:17:16,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-11-12 02:17:16,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-11-12 02:17:16,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-11-12 02:17:16,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-11-12 02:17:16,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:17:16,705 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:16,706 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:16,706 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-12 02:17:16,735 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:16,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 138 transitions, 294 flow [2023-11-12 02:17:16,794 INFO L124 PetriNetUnfolderBase]: 19/175 cut-off events. [2023-11-12 02:17:16,794 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:17:16,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 175 events. 19/175 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 461 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 128. Up to 8 conditions per place. [2023-11-12 02:17:16,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 138 transitions, 294 flow [2023-11-12 02:17:16,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 138 transitions, 294 flow [2023-11-12 02:17:16,801 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:16,801 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 138 transitions, 294 flow [2023-11-12 02:17:16,801 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 138 transitions, 294 flow [2023-11-12 02:17:16,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 138 transitions, 294 flow [2023-11-12 02:17:16,835 INFO L124 PetriNetUnfolderBase]: 19/175 cut-off events. [2023-11-12 02:17:16,835 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:17:16,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 175 events. 19/175 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 461 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 128. Up to 8 conditions per place. [2023-11-12 02:17:16,848 INFO L119 LiptonReduction]: Number of co-enabled transitions 11544 [2023-11-12 02:17:20,784 INFO L134 LiptonReduction]: Checked pairs total: 11899 [2023-11-12 02:17:20,784 INFO L136 LiptonReduction]: Total number of compositions: 161 [2023-11-12 02:17:20,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:20,788 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:20,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-12 02:17:20,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:20,796 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:17:20,796 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:20,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:20,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:20,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-12 02:17:20,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:20,797 INFO L85 PathProgramCache]: Analyzing trace with hash 28513217, now seen corresponding path program 1 times [2023-11-12 02:17:20,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:20,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997994440] [2023-11-12 02:17:20,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:20,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:20,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:20,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997994440] [2023-11-12 02:17:20,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997994440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:20,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:20,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:20,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753478928] [2023-11-12 02:17:20,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:20,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:20,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:20,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:20,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:20,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 299 [2023-11-12 02:17:20,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:20,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 299 [2023-11-12 02:17:20,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:20,902 INFO L124 PetriNetUnfolderBase]: 110/225 cut-off events. [2023-11-12 02:17:20,903 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-11-12 02:17:20,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 225 events. 110/225 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 905 event pairs, 110 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 118. Up to 191 conditions per place. [2023-11-12 02:17:20,905 INFO L140 encePairwiseOnDemand]: 286/299 looper letters, 11 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-11-12 02:17:20,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 68 flow [2023-11-12 02:17:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 236 transitions. [2023-11-12 02:17:20,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39464882943143814 [2023-11-12 02:17:20,909 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 236 transitions. [2023-11-12 02:17:20,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 236 transitions. [2023-11-12 02:17:20,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:20,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 236 transitions. [2023-11-12 02:17:20,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,914 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,915 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 72 flow. Second operand 2 states and 236 transitions. [2023-11-12 02:17:20,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 68 flow [2023-11-12 02:17:20,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 66 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:20,917 INFO L231 Difference]: Finished difference. Result has 22 places, 14 transitions, 44 flow [2023-11-12 02:17:20,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=14} [2023-11-12 02:17:20,918 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -12 predicate places. [2023-11-12 02:17:20,918 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 14 transitions, 44 flow [2023-11-12 02:17:20,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:20,919 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-11-12 02:17:20,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:17:20,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-12 02:17:20,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash 207961699, now seen corresponding path program 1 times [2023-11-12 02:17:20,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:20,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661523111] [2023-11-12 02:17:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:20,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:20,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:20,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:20,963 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:20,964 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-12 02:17:20,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2023-11-12 02:17:20,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2023-11-12 02:17:20,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2023-11-12 02:17:20,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2023-11-12 02:17:20,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2023-11-12 02:17:20,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2023-11-12 02:17:20,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2023-11-12 02:17:20,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2023-11-12 02:17:20,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2023-11-12 02:17:20,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2023-11-12 02:17:20,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2023-11-12 02:17:20,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2023-11-12 02:17:20,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2023-11-12 02:17:20,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2023-11-12 02:17:20,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2023-11-12 02:17:20,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2023-11-12 02:17:20,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:17:20,969 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:20,969 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:20,970 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-12 02:17:21,004 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:21,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 176 transitions, 380 flow [2023-11-12 02:17:21,052 INFO L124 PetriNetUnfolderBase]: 25/226 cut-off events. [2023-11-12 02:17:21,053 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-12 02:17:21,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 226 events. 25/226 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 663 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2023-11-12 02:17:21,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 176 transitions, 380 flow [2023-11-12 02:17:21,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 176 transitions, 380 flow [2023-11-12 02:17:21,063 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:21,063 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 176 transitions, 380 flow [2023-11-12 02:17:21,063 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 176 transitions, 380 flow [2023-11-12 02:17:21,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 176 transitions, 380 flow [2023-11-12 02:17:21,102 INFO L124 PetriNetUnfolderBase]: 25/226 cut-off events. [2023-11-12 02:17:21,103 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-12 02:17:21,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 226 events. 25/226 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 663 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2023-11-12 02:17:21,123 INFO L119 LiptonReduction]: Number of co-enabled transitions 21016 [2023-11-12 02:17:25,819 INFO L134 LiptonReduction]: Checked pairs total: 21107 [2023-11-12 02:17:25,819 INFO L136 LiptonReduction]: Total number of compositions: 208 [2023-11-12 02:17:25,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:25,823 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:25,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-12 02:17:25,825 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:25,825 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:17:25,825 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:25,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:25,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:25,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-11-12 02:17:25,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash 40987481, now seen corresponding path program 1 times [2023-11-12 02:17:25,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:25,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622966280] [2023-11-12 02:17:25,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:25,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:25,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:25,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622966280] [2023-11-12 02:17:25,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622966280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:25,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:25,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:25,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290105386] [2023-11-12 02:17:25,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:25,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:25,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:25,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:25,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:25,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 384 [2023-11-12 02:17:25,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 96 flow. Second operand has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:25,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:25,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 384 [2023-11-12 02:17:25,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:26,094 INFO L124 PetriNetUnfolderBase]: 488/837 cut-off events. [2023-11-12 02:17:26,094 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2023-11-12 02:17:26,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 837 events. 488/837 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3932 event pairs, 488 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 475. Up to 731 conditions per place. [2023-11-12 02:17:26,102 INFO L140 encePairwiseOnDemand]: 367/384 looper letters, 14 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-11-12 02:17:26,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 17 transitions, 90 flow [2023-11-12 02:17:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:26,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2023-11-12 02:17:26,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3893229166666667 [2023-11-12 02:17:26,109 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2023-11-12 02:17:26,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2023-11-12 02:17:26,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:26,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2023-11-12 02:17:26,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:26,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:26,121 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:26,122 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 96 flow. Second operand 2 states and 299 transitions. [2023-11-12 02:17:26,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 17 transitions, 90 flow [2023-11-12 02:17:26,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 17 transitions, 84 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:26,130 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 56 flow [2023-11-12 02:17:26,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=384, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2023-11-12 02:17:26,136 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -16 predicate places. [2023-11-12 02:17:26,136 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 56 flow [2023-11-12 02:17:26,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:26,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:26,137 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:26,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:17:26,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-11-12 02:17:26,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash 979167435, now seen corresponding path program 1 times [2023-11-12 02:17:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:26,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087162517] [2023-11-12 02:17:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:26,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:26,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:26,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:26,231 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:26,231 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2023-11-12 02:17:26,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-11-12 02:17:26,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-11-12 02:17:26,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-11-12 02:17:26,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-11-12 02:17:26,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-11-12 02:17:26,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-11-12 02:17:26,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-11-12 02:17:26,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-11-12 02:17:26,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2023-11-12 02:17:26,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2023-11-12 02:17:26,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-11-12 02:17:26,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-11-12 02:17:26,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-11-12 02:17:26,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-11-12 02:17:26,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-11-12 02:17:26,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-11-12 02:17:26,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-11-12 02:17:26,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-11-12 02:17:26,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-11-12 02:17:26,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-11-12 02:17:26,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:17:26,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:26,242 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:26,242 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-11-12 02:17:26,283 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:26,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 214 transitions, 468 flow [2023-11-12 02:17:26,352 INFO L124 PetriNetUnfolderBase]: 31/277 cut-off events. [2023-11-12 02:17:26,352 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-12 02:17:26,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 277 events. 31/277 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 873 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 239. Up to 12 conditions per place. [2023-11-12 02:17:26,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 199 places, 214 transitions, 468 flow [2023-11-12 02:17:26,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 214 transitions, 468 flow [2023-11-12 02:17:26,365 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:26,365 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 214 transitions, 468 flow [2023-11-12 02:17:26,365 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 214 transitions, 468 flow [2023-11-12 02:17:26,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 214 transitions, 468 flow [2023-11-12 02:17:26,434 INFO L124 PetriNetUnfolderBase]: 31/277 cut-off events. [2023-11-12 02:17:26,434 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-12 02:17:26,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 277 events. 31/277 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 873 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 239. Up to 12 conditions per place. [2023-11-12 02:17:26,456 INFO L119 LiptonReduction]: Number of co-enabled transitions 33300 [2023-11-12 02:17:32,748 INFO L134 LiptonReduction]: Checked pairs total: 33622 [2023-11-12 02:17:32,748 INFO L136 LiptonReduction]: Total number of compositions: 251 [2023-11-12 02:17:32,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:32,750 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:32,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-12 02:17:32,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:32,752 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:17:32,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:32,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:32,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:32,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 02:17:32,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 56221565, now seen corresponding path program 1 times [2023-11-12 02:17:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:32,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927587100] [2023-11-12 02:17:32,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:32,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927587100] [2023-11-12 02:17:32,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927587100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:32,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:32,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463784427] [2023-11-12 02:17:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:32,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:32,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:32,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:32,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:32,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 465 [2023-11-12 02:17:32,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:32,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:32,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 465 [2023-11-12 02:17:32,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:33,369 INFO L124 PetriNetUnfolderBase]: 1946/2997 cut-off events. [2023-11-12 02:17:33,370 INFO L125 PetriNetUnfolderBase]: For 2176/2176 co-relation queries the response was YES. [2023-11-12 02:17:33,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6346 conditions, 2997 events. 1946/2997 cut-off events. For 2176/2176 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15410 event pairs, 1946 based on Foata normal form. 0/2876 useless extension candidates. Maximal degree in co-relation 1789. Up to 2675 conditions per place. [2023-11-12 02:17:33,394 INFO L140 encePairwiseOnDemand]: 444/465 looper letters, 17 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-11-12 02:17:33,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 20 transitions, 114 flow [2023-11-12 02:17:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:33,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 362 transitions. [2023-11-12 02:17:33,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38924731182795697 [2023-11-12 02:17:33,396 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 362 transitions. [2023-11-12 02:17:33,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 362 transitions. [2023-11-12 02:17:33,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:33,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 362 transitions. [2023-11-12 02:17:33,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:33,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:33,404 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:33,404 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 122 flow. Second operand 2 states and 362 transitions. [2023-11-12 02:17:33,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 20 transitions, 114 flow [2023-11-12 02:17:33,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 102 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:33,408 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 68 flow [2023-11-12 02:17:33,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-11-12 02:17:33,410 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -20 predicate places. [2023-11-12 02:17:33,410 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 68 flow [2023-11-12 02:17:33,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:33,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:33,413 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:33,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:17:33,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 02:17:33,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1340511556, now seen corresponding path program 1 times [2023-11-12 02:17:33,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:33,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052163532] [2023-11-12 02:17:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:33,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:33,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:33,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:33,486 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:33,487 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-12 02:17:33,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-12 02:17:33,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-12 02:17:33,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-12 02:17:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-12 02:17:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-12 02:17:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-12 02:17:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-12 02:17:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-12 02:17:33,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-12 02:17:33,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-12 02:17:33,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-12 02:17:33,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-12 02:17:33,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-12 02:17:33,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-12 02:17:33,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-12 02:17:33,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-12 02:17:33,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-12 02:17:33,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-12 02:17:33,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-12 02:17:33,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-12 02:17:33,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-12 02:17:33,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-12 02:17:33,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-12 02:17:33,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-12 02:17:33,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:17:33,493 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:33,494 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:33,494 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-11-12 02:17:33,531 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:33,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 252 transitions, 558 flow [2023-11-12 02:17:33,609 INFO L124 PetriNetUnfolderBase]: 37/328 cut-off events. [2023-11-12 02:17:33,610 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-12 02:17:33,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 328 events. 37/328 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1066 event pairs, 0 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 296. Up to 14 conditions per place. [2023-11-12 02:17:33,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 252 transitions, 558 flow [2023-11-12 02:17:33,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 252 transitions, 558 flow [2023-11-12 02:17:33,622 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:33,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 252 transitions, 558 flow [2023-11-12 02:17:33,622 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 252 transitions, 558 flow [2023-11-12 02:17:33,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 252 transitions, 558 flow [2023-11-12 02:17:33,696 INFO L124 PetriNetUnfolderBase]: 37/328 cut-off events. [2023-11-12 02:17:33,696 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-12 02:17:33,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 328 events. 37/328 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1066 event pairs, 0 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 296. Up to 14 conditions per place. [2023-11-12 02:17:33,720 INFO L119 LiptonReduction]: Number of co-enabled transitions 48396 [2023-11-12 02:17:40,082 INFO L134 LiptonReduction]: Checked pairs total: 49432 [2023-11-12 02:17:40,082 INFO L136 LiptonReduction]: Total number of compositions: 294 [2023-11-12 02:17:40,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:40,094 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:40,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-11-12 02:17:40,095 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:40,096 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:17:40,096 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:40,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:40,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:40,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-12 02:17:40,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:40,097 INFO L85 PathProgramCache]: Analyzing trace with hash 73772326, now seen corresponding path program 1 times [2023-11-12 02:17:40,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:40,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030672499] [2023-11-12 02:17:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:40,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:40,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:40,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030672499] [2023-11-12 02:17:40,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030672499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:40,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:40,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:40,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278613428] [2023-11-12 02:17:40,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:40,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:40,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:40,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:40,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:40,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 546 [2023-11-12 02:17:40,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 150 flow. Second operand has 2 states, 2 states have (on average 192.0) internal successors, (384), 2 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:40,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:40,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 546 [2023-11-12 02:17:40,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:41,952 INFO L124 PetriNetUnfolderBase]: 7292/10449 cut-off events. [2023-11-12 02:17:41,952 INFO L125 PetriNetUnfolderBase]: For 9628/9628 co-relation queries the response was YES. [2023-11-12 02:17:42,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22304 conditions, 10449 events. 7292/10449 cut-off events. For 9628/9628 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 57386 event pairs, 7292 based on Foata normal form. 0/10085 useless extension candidates. Maximal degree in co-relation 6460. Up to 9479 conditions per place. [2023-11-12 02:17:42,103 INFO L140 encePairwiseOnDemand]: 521/546 looper letters, 20 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-11-12 02:17:42,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 23 transitions, 140 flow [2023-11-12 02:17:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:42,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:42,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 425 transitions. [2023-11-12 02:17:42,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3891941391941392 [2023-11-12 02:17:42,106 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 425 transitions. [2023-11-12 02:17:42,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 425 transitions. [2023-11-12 02:17:42,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:42,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 425 transitions. [2023-11-12 02:17:42,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:42,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:42,112 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:42,112 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 150 flow. Second operand 2 states and 425 transitions. [2023-11-12 02:17:42,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 23 transitions, 140 flow [2023-11-12 02:17:42,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 23 transitions, 120 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:42,120 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 80 flow [2023-11-12 02:17:42,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2023-11-12 02:17:42,121 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -24 predicate places. [2023-11-12 02:17:42,122 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 80 flow [2023-11-12 02:17:42,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.0) internal successors, (384), 2 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:42,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:42,122 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:42,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:17:42,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-12 02:17:42,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:42,123 INFO L85 PathProgramCache]: Analyzing trace with hash -703326625, now seen corresponding path program 1 times [2023-11-12 02:17:42,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791217929] [2023-11-12 02:17:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:42,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:42,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:42,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:42,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:42,194 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2023-11-12 02:17:42,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-11-12 02:17:42,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-11-12 02:17:42,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-11-12 02:17:42,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-11-12 02:17:42,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-11-12 02:17:42,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-11-12 02:17:42,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-11-12 02:17:42,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-11-12 02:17:42,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-11-12 02:17:42,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-11-12 02:17:42,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2023-11-12 02:17:42,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2023-11-12 02:17:42,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-11-12 02:17:42,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-11-12 02:17:42,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-11-12 02:17:42,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-11-12 02:17:42,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-11-12 02:17:42,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-11-12 02:17:42,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-11-12 02:17:42,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-11-12 02:17:42,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-11-12 02:17:42,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-11-12 02:17:42,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:17:42,198 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:42,199 WARN L234 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:42,199 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-11-12 02:17:42,240 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:42,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 290 transitions, 650 flow [2023-11-12 02:17:42,319 INFO L124 PetriNetUnfolderBase]: 43/379 cut-off events. [2023-11-12 02:17:42,320 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-12 02:17:42,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 379 events. 43/379 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1286 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 354. Up to 16 conditions per place. [2023-11-12 02:17:42,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 269 places, 290 transitions, 650 flow [2023-11-12 02:17:42,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 290 transitions, 650 flow [2023-11-12 02:17:42,331 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:42,331 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 290 transitions, 650 flow [2023-11-12 02:17:42,331 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 290 transitions, 650 flow [2023-11-12 02:17:42,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 290 transitions, 650 flow [2023-11-12 02:17:42,411 INFO L124 PetriNetUnfolderBase]: 43/379 cut-off events. [2023-11-12 02:17:42,412 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-12 02:17:42,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 379 events. 43/379 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1286 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 354. Up to 16 conditions per place. [2023-11-12 02:17:42,443 INFO L119 LiptonReduction]: Number of co-enabled transitions 66304 [2023-11-12 02:17:49,542 INFO L134 LiptonReduction]: Checked pairs total: 66156 [2023-11-12 02:17:49,543 INFO L136 LiptonReduction]: Total number of compositions: 340 [2023-11-12 02:17:49,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:49,545 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;@235e5b2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:49,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-11-12 02:17:49,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:49,546 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:17:49,547 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:49,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:49,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:49,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-12 02:17:49,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash 94232689, now seen corresponding path program 1 times [2023-11-12 02:17:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887720693] [2023-11-12 02:17:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:49,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:49,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:49,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887720693] [2023-11-12 02:17:49,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887720693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:49,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:49,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:49,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404680323] [2023-11-12 02:17:49,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:49,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:49,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:49,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:49,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:49,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 630 [2023-11-12 02:17:49,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 220.0) internal successors, (440), 2 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:49,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:49,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 630 [2023-11-12 02:17:49,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:54,605 INFO L124 PetriNetUnfolderBase]: 26246/35721 cut-off events. [2023-11-12 02:17:54,605 INFO L125 PetriNetUnfolderBase]: For 40003/40003 co-relation queries the response was YES. [2023-11-12 02:17:54,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76737 conditions, 35721 events. 26246/35721 cut-off events. For 40003/40003 co-relation queries the response was YES. Maximal size of possible extension queue 1425. Compared 205628 event pairs, 26246 based on Foata normal form. 0/34628 useless extension candidates. Maximal degree in co-relation 22660. Up to 32807 conditions per place. [2023-11-12 02:17:54,915 INFO L140 encePairwiseOnDemand]: 601/630 looper letters, 23 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-11-12 02:17:54,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 168 flow [2023-11-12 02:17:54,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 488 transitions. [2023-11-12 02:17:54,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3873015873015873 [2023-11-12 02:17:54,919 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 488 transitions. [2023-11-12 02:17:54,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 488 transitions. [2023-11-12 02:17:54,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:54,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 488 transitions. [2023-11-12 02:17:54,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 244.0) internal successors, (488), 2 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:54,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 630.0) internal successors, (1890), 3 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:54,927 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 630.0) internal successors, (1890), 3 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:54,927 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 180 flow. Second operand 2 states and 488 transitions. [2023-11-12 02:17:54,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 168 flow [2023-11-12 02:17:54,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 138 flow, removed 15 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:54,963 INFO L231 Difference]: Finished difference. Result has 42 places, 26 transitions, 92 flow [2023-11-12 02:17:54,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=630, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=42, PETRI_TRANSITIONS=26} [2023-11-12 02:17:54,965 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -28 predicate places. [2023-11-12 02:17:54,965 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 92 flow [2023-11-12 02:17:54,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 220.0) internal successors, (440), 2 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:54,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:54,966 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:54,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:17:54,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-12 02:17:54,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:54,967 INFO L85 PathProgramCache]: Analyzing trace with hash -505476617, now seen corresponding path program 1 times [2023-11-12 02:17:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887238830] [2023-11-12 02:17:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:54,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:54,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:55,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:55,031 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:55,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-11-12 02:17:55,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-11-12 02:17:55,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-11-12 02:17:55,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-11-12 02:17:55,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-11-12 02:17:55,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-11-12 02:17:55,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-11-12 02:17:55,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-11-12 02:17:55,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-11-12 02:17:55,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-11-12 02:17:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-11-12 02:17:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-11-12 02:17:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-11-12 02:17:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-11-12 02:17:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-11-12 02:17:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-11-12 02:17:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-11-12 02:17:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-11-12 02:17:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-11-12 02:17:55,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-11-12 02:17:55,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-11-12 02:17:55,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-11-12 02:17:55,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-11-12 02:17:55,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-11-12 02:17:55,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-11-12 02:17:55,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-11-12 02:17:55,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-11-12 02:17:55,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-11-12 02:17:55,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-11-12 02:17:55,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-11-12 02:17:55,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-11-12 02:17:55,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-11-12 02:17:55,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-11-12 02:17:55,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:17:55,039 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:55,040 WARN L234 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:55,040 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-11-12 02:17:55,089 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:55,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 328 transitions, 744 flow [2023-11-12 02:17:55,221 INFO L124 PetriNetUnfolderBase]: 49/430 cut-off events. [2023-11-12 02:17:55,221 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-11-12 02:17:55,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 430 events. 49/430 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1474 event pairs, 0 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 413. Up to 18 conditions per place. [2023-11-12 02:17:55,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 304 places, 328 transitions, 744 flow [2023-11-12 02:17:55,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 328 transitions, 744 flow [2023-11-12 02:17:55,237 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:55,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 328 transitions, 744 flow [2023-11-12 02:17:55,237 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 328 transitions, 744 flow [2023-11-12 02:17:55,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 328 transitions, 744 flow