./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu --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 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:56,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:56,137 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:39:56,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:56,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:56,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:56,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:56,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:56,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:56,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:56,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:56,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:56,173 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:56,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:56,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:56,175 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:56,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:56,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:56,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:56,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:56,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:56,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:56,179 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:39:56,179 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:39:56,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:56,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:56,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:56,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:56,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:56,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:56,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:56,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:56,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:56,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:56,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:56,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:56,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:56,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:56,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:56,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:56,186 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:56,186 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_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac [2023-11-19 07:39:56,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:56,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:56,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:56,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:56,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:56,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-19 07:39:59,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:59,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:59,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-19 07:39:59,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/data/14a8548c4/363f606a37a943a2a057a231ee6f37b5/FLAG720ea63f8 [2023-11-19 07:39:59,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/data/14a8548c4/363f606a37a943a2a057a231ee6f37b5 [2023-11-19 07:39:59,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:59,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:59,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:59,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:59,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:59,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:59" (1/1) ... [2023-11-19 07:39:59,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f591b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:59, skipping insertion in model container [2023-11-19 07:39:59,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:59" (1/1) ... [2023-11-19 07:39:59,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:00,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:00,362 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:00,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:00,474 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:00,480 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:00,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00 WrapperNode [2023-11-19 07:40:00,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:00,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:00,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:00,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:00,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,554 INFO L138 Inliner]: procedures = 159, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2023-11-19 07:40:00,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:00,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:00,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:00,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:00,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:00,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:00,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:00,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:00,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (1/1) ... [2023-11-19 07:40:00,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:00,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:00,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:00,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:40:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:40:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:40:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:40:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:40:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-19 07:40:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 07:40:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 07:40:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:00,716 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:40:00,909 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:00,912 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:01,104 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:01,117 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:01,117 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:40:01,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:01 BoogieIcfgContainer [2023-11-19 07:40:01,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:01,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:01,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:01,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:01,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:59" (1/3) ... [2023-11-19 07:40:01,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47793235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:01, skipping insertion in model container [2023-11-19 07:40:01,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:00" (2/3) ... [2023-11-19 07:40:01,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47793235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:01, skipping insertion in model container [2023-11-19 07:40:01,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:01" (3/3) ... [2023-11-19 07:40:01,131 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race.i [2023-11-19 07:40:01,147 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:40:01,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:01,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:40:01,157 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:40:01,224 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:40:01,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 104 transitions, 212 flow [2023-11-19 07:40:01,354 INFO L124 PetriNetUnfolderBase]: 7/136 cut-off events. [2023-11-19 07:40:01,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:01,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 136 events. 7/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2023-11-19 07:40:01,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 104 transitions, 212 flow [2023-11-19 07:40:01,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 104 transitions, 212 flow [2023-11-19 07:40:01,371 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:40:01,381 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 104 transitions, 212 flow [2023-11-19 07:40:01,384 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 104 transitions, 212 flow [2023-11-19 07:40:01,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 104 transitions, 212 flow [2023-11-19 07:40:01,433 INFO L124 PetriNetUnfolderBase]: 7/136 cut-off events. [2023-11-19 07:40:01,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:01,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 136 events. 7/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2023-11-19 07:40:01,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 2652 [2023-11-19 07:40:03,654 INFO L134 LiptonReduction]: Checked pairs total: 8163 [2023-11-19 07:40:03,672 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-11-19 07:40:03,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:03,694 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;@5184f041, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:03,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-19 07:40:03,697 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:40:03,697 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 07:40:03,697 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:03,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:03,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:40:03,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:40:03,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 357158, now seen corresponding path program 1 times [2023-11-19 07:40:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414980298] [2023-11-19 07:40:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:03,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:03,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414980298] [2023-11-19 07:40:03,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414980298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:03,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:03,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499062587] [2023-11-19 07:40:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:03,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:03,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:03,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:03,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:03,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 178 [2023-11-19 07:40:03,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:03,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:03,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 178 [2023-11-19 07:40:03,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:04,103 INFO L124 PetriNetUnfolderBase]: 90/297 cut-off events. [2023-11-19 07:40:04,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:04,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 297 events. 90/297 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1446 event pairs, 31 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 473. Up to 123 conditions per place. [2023-11-19 07:40:04,111 INFO L140 encePairwiseOnDemand]: 165/178 looper letters, 31 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2023-11-19 07:40:04,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 184 flow [2023-11-19 07:40:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-11-19 07:40:04,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5861423220973783 [2023-11-19 07:40:04,136 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-11-19 07:40:04,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-11-19 07:40:04,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:04,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-11-19 07:40:04,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,157 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 76 flow. Second operand 3 states and 313 transitions. [2023-11-19 07:40:04,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 184 flow [2023-11-19 07:40:04,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:40:04,163 INFO L231 Difference]: Finished difference. Result has 40 places, 42 transitions, 142 flow [2023-11-19 07:40:04,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=40, PETRI_TRANSITIONS=42} [2023-11-19 07:40:04,169 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2023-11-19 07:40:04,169 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 142 flow [2023-11-19 07:40:04,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:04,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:04,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:04,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:40:04,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -864513632, now seen corresponding path program 1 times [2023-11-19 07:40:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:04,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445554469] [2023-11-19 07:40:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:04,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:04,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445554469] [2023-11-19 07:40:04,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445554469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:04,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:04,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:04,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675668631] [2023-11-19 07:40:04,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:04,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:04,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:04,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:04,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 178 [2023-11-19 07:40:04,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 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) [2023-11-19 07:40:04,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:04,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 178 [2023-11-19 07:40:04,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:04,414 INFO L124 PetriNetUnfolderBase]: 72/256 cut-off events. [2023-11-19 07:40:04,414 INFO L125 PetriNetUnfolderBase]: For 105/110 co-relation queries the response was YES. [2023-11-19 07:40:04,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 256 events. 72/256 cut-off events. For 105/110 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1227 event pairs, 44 based on Foata normal form. 1/235 useless extension candidates. Maximal degree in co-relation 510. Up to 145 conditions per place. [2023-11-19 07:40:04,422 INFO L140 encePairwiseOnDemand]: 173/178 looper letters, 24 selfloop transitions, 6 changer transitions 0/50 dead transitions. [2023-11-19 07:40:04,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 50 transitions, 228 flow [2023-11-19 07:40:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-11-19 07:40:04,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5468164794007491 [2023-11-19 07:40:04,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-11-19 07:40:04,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-11-19 07:40:04,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:04,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-11-19 07:40:04,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,436 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 142 flow. Second operand 3 states and 292 transitions. [2023-11-19 07:40:04,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 50 transitions, 228 flow [2023-11-19 07:40:04,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:04,442 INFO L231 Difference]: Finished difference. Result has 41 places, 46 transitions, 168 flow [2023-11-19 07:40:04,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=41, PETRI_TRANSITIONS=46} [2023-11-19 07:40:04,443 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 4 predicate places. [2023-11-19 07:40:04,443 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 46 transitions, 168 flow [2023-11-19 07:40:04,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 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) [2023-11-19 07:40:04,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:04,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:04,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:04,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:40:04,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:04,445 INFO L85 PathProgramCache]: Analyzing trace with hash -758946130, now seen corresponding path program 1 times [2023-11-19 07:40:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:04,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055918502] [2023-11-19 07:40:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:04,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:04,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:04,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055918502] [2023-11-19 07:40:04,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055918502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:04,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:04,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:04,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430207899] [2023-11-19 07:40:04,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:04,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:04,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 178 [2023-11-19 07:40:04,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 46 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:04,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 178 [2023-11-19 07:40:04,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:04,551 INFO L124 PetriNetUnfolderBase]: 75/286 cut-off events. [2023-11-19 07:40:04,551 INFO L125 PetriNetUnfolderBase]: For 105/121 co-relation queries the response was YES. [2023-11-19 07:40:04,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 286 events. 75/286 cut-off events. For 105/121 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1534 event pairs, 33 based on Foata normal form. 6/271 useless extension candidates. Maximal degree in co-relation 557. Up to 115 conditions per place. [2023-11-19 07:40:04,554 INFO L140 encePairwiseOnDemand]: 174/178 looper letters, 24 selfloop transitions, 3 changer transitions 1/53 dead transitions. [2023-11-19 07:40:04,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 242 flow [2023-11-19 07:40:04,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:04,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2023-11-19 07:40:04,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5842696629213483 [2023-11-19 07:40:04,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2023-11-19 07:40:04,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2023-11-19 07:40:04,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:04,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2023-11-19 07:40:04,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,560 INFO L175 Difference]: Start difference. First operand has 41 places, 46 transitions, 168 flow. Second operand 3 states and 312 transitions. [2023-11-19 07:40:04,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 242 flow [2023-11-19 07:40:04,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:40:04,564 INFO L231 Difference]: Finished difference. Result has 44 places, 48 transitions, 184 flow [2023-11-19 07:40:04,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=44, PETRI_TRANSITIONS=48} [2023-11-19 07:40:04,565 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2023-11-19 07:40:04,566 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 48 transitions, 184 flow [2023-11-19 07:40:04,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:04,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:04,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:40:04,567 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:40:04,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:04,568 INFO L85 PathProgramCache]: Analyzing trace with hash -573505561, now seen corresponding path program 1 times [2023-11-19 07:40:04,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:04,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336490586] [2023-11-19 07:40:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:04,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:04,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:04,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336490586] [2023-11-19 07:40:04,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336490586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672310798] [2023-11-19 07:40:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:04,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:04,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:04,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:04,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 178 [2023-11-19 07:40:04,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:04,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 178 [2023-11-19 07:40:04,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:04,730 INFO L124 PetriNetUnfolderBase]: 68/268 cut-off events. [2023-11-19 07:40:04,730 INFO L125 PetriNetUnfolderBase]: For 121/140 co-relation queries the response was YES. [2023-11-19 07:40:04,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 268 events. 68/268 cut-off events. For 121/140 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1422 event pairs, 37 based on Foata normal form. 6/256 useless extension candidates. Maximal degree in co-relation 546. Up to 130 conditions per place. [2023-11-19 07:40:04,732 INFO L140 encePairwiseOnDemand]: 174/178 looper letters, 25 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2023-11-19 07:40:04,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 266 flow [2023-11-19 07:40:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-11-19 07:40:04,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730337078651685 [2023-11-19 07:40:04,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-11-19 07:40:04,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-11-19 07:40:04,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:04,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-11-19 07:40:04,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,739 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 184 flow. Second operand 3 states and 306 transitions. [2023-11-19 07:40:04,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 266 flow [2023-11-19 07:40:04,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:04,746 INFO L231 Difference]: Finished difference. Result has 45 places, 50 transitions, 202 flow [2023-11-19 07:40:04,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=45, PETRI_TRANSITIONS=50} [2023-11-19 07:40:04,748 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2023-11-19 07:40:04,749 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 50 transitions, 202 flow [2023-11-19 07:40:04,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:04,749 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-19 07:40:04,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:40:04,764 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:40:04,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:04,765 INFO L85 PathProgramCache]: Analyzing trace with hash -228269436, now seen corresponding path program 1 times [2023-11-19 07:40:04,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:04,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89226769] [2023-11-19 07:40:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:04,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:04,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:04,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:04,902 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:40:04,903 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-19 07:40:04,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-19 07:40:04,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-19 07:40:04,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-19 07:40:04,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-19 07:40:04,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-19 07:40:04,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-19 07:40:04,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-19 07:40:04,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-19 07:40:04,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-19 07:40:04,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-19 07:40:04,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-19 07:40:04,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:40:04,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:40:04,920 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:40:04,920 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:40:04,961 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:40:04,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 131 transitions, 272 flow [2023-11-19 07:40:05,026 INFO L124 PetriNetUnfolderBase]: 10/213 cut-off events. [2023-11-19 07:40:05,026 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:40:05,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 213 events. 10/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2023-11-19 07:40:05,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 131 transitions, 272 flow [2023-11-19 07:40:05,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 131 transitions, 272 flow [2023-11-19 07:40:05,030 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:40:05,030 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 131 transitions, 272 flow [2023-11-19 07:40:05,031 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 131 transitions, 272 flow [2023-11-19 07:40:05,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 131 transitions, 272 flow [2023-11-19 07:40:05,083 INFO L124 PetriNetUnfolderBase]: 10/213 cut-off events. [2023-11-19 07:40:05,083 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:40:05,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 213 events. 10/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2023-11-19 07:40:05,091 INFO L119 LiptonReduction]: Number of co-enabled transitions 6708 [2023-11-19 07:40:07,179 INFO L134 LiptonReduction]: Checked pairs total: 24740 [2023-11-19 07:40:07,179 INFO L136 LiptonReduction]: Total number of compositions: 82 [2023-11-19 07:40:07,182 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:07,183 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;@5184f041, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:07,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 07:40:07,184 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:40:07,184 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 07:40:07,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:07,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:07,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:40:07,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:07,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash 595412, now seen corresponding path program 1 times [2023-11-19 07:40:07,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:07,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600035445] [2023-11-19 07:40:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:07,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:07,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600035445] [2023-11-19 07:40:07,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600035445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:07,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:07,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:07,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294975304] [2023-11-19 07:40:07,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:07,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:07,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:07,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 213 [2023-11-19 07:40:07,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:07,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 213 [2023-11-19 07:40:07,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:07,969 INFO L124 PetriNetUnfolderBase]: 2801/5657 cut-off events. [2023-11-19 07:40:07,969 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-19 07:40:07,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10270 conditions, 5657 events. 2801/5657 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 42743 event pairs, 1119 based on Foata normal form. 0/5160 useless extension candidates. Maximal degree in co-relation 4518. Up to 2613 conditions per place. [2023-11-19 07:40:08,010 INFO L140 encePairwiseOnDemand]: 196/213 looper letters, 51 selfloop transitions, 11 changer transitions 0/80 dead transitions. [2023-11-19 07:40:08,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 80 transitions, 299 flow [2023-11-19 07:40:08,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-11-19 07:40:08,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6306729264475743 [2023-11-19 07:40:08,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-11-19 07:40:08,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-11-19 07:40:08,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:08,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-11-19 07:40:08,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,018 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 118 flow. Second operand 3 states and 403 transitions. [2023-11-19 07:40:08,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 80 transitions, 299 flow [2023-11-19 07:40:08,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:40:08,020 INFO L231 Difference]: Finished difference. Result has 60 places, 63 transitions, 210 flow [2023-11-19 07:40:08,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=60, PETRI_TRANSITIONS=63} [2023-11-19 07:40:08,024 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2023-11-19 07:40:08,024 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 210 flow [2023-11-19 07:40:08,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:08,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:08,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:40:08,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:08,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:08,029 INFO L85 PathProgramCache]: Analyzing trace with hash 131066156, now seen corresponding path program 1 times [2023-11-19 07:40:08,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:08,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106762049] [2023-11-19 07:40:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:08,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:08,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:08,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106762049] [2023-11-19 07:40:08,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106762049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:08,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:08,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:08,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290841847] [2023-11-19 07:40:08,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:08,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:08,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:08,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:08,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:08,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 213 [2023-11-19 07:40:08,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:08,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 213 [2023-11-19 07:40:08,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:08,332 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, threadThread1of2ForFork0InUse, 37#L692-2true, 141#true, threadThread2of2ForFork0InUse, 137#(= |#race~threads_alive~0| 0), 64#L690-3true, Black: 135#true]) [2023-11-19 07:40:08,332 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-19 07:40:08,332 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:40:08,332 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:40:08,332 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:40:08,333 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, 9#L690-1true, threadThread1of2ForFork0InUse, 37#L692-2true, threadThread2of2ForFork0InUse, 141#true, 137#(= |#race~threads_alive~0| 0), Black: 135#true]) [2023-11-19 07:40:08,333 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-19 07:40:08,333 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:40:08,333 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:40:08,333 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:40:08,335 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, threadThread1of2ForFork0InUse, 37#L692-2true, 141#true, threadThread2of2ForFork0InUse, 137#(= |#race~threads_alive~0| 0), 41#L690-5true, Black: 135#true]) [2023-11-19 07:40:08,336 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-19 07:40:08,336 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:40:08,336 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:40:08,336 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:40:08,371 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, 113#L691true, threadThread1of2ForFork0InUse, 37#L692-2true, threadThread2of2ForFork0InUse, 141#true, 137#(= |#race~threads_alive~0| 0), Black: 135#true]) [2023-11-19 07:40:08,371 INFO L294 olderBase$Statistics]: this new event has 35 ancestors and is cut-off event [2023-11-19 07:40:08,371 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:40:08,371 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:40:08,371 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:40:08,787 INFO L124 PetriNetUnfolderBase]: 2304/4945 cut-off events. [2023-11-19 07:40:08,787 INFO L125 PetriNetUnfolderBase]: For 2380/2499 co-relation queries the response was YES. [2023-11-19 07:40:08,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11092 conditions, 4945 events. 2304/4945 cut-off events. For 2380/2499 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 38894 event pairs, 1523 based on Foata normal form. 28/4601 useless extension candidates. Maximal degree in co-relation 4089. Up to 3251 conditions per place. [2023-11-19 07:40:08,832 INFO L140 encePairwiseOnDemand]: 206/213 looper letters, 43 selfloop transitions, 11 changer transitions 0/83 dead transitions. [2023-11-19 07:40:08,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 83 transitions, 382 flow [2023-11-19 07:40:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:08,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-19 07:40:08,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5993740219092332 [2023-11-19 07:40:08,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-19 07:40:08,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-19 07:40:08,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:08,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-19 07:40:08,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,840 INFO L175 Difference]: Start difference. First operand has 60 places, 63 transitions, 210 flow. Second operand 3 states and 383 transitions. [2023-11-19 07:40:08,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 83 transitions, 382 flow [2023-11-19 07:40:08,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 83 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:08,849 INFO L231 Difference]: Finished difference. Result has 61 places, 72 transitions, 275 flow [2023-11-19 07:40:08,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=61, PETRI_TRANSITIONS=72} [2023-11-19 07:40:08,850 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-11-19 07:40:08,851 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 72 transitions, 275 flow [2023-11-19 07:40:08,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:08,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:08,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:40:08,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:08,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:08,852 INFO L85 PathProgramCache]: Analyzing trace with hash 236604828, now seen corresponding path program 1 times [2023-11-19 07:40:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570590120] [2023-11-19 07:40:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:08,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:08,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:08,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570590120] [2023-11-19 07:40:08,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570590120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:08,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:08,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:08,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849113170] [2023-11-19 07:40:08,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:08,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:08,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:08,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 213 [2023-11-19 07:40:08,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 72 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:08,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 213 [2023-11-19 07:40:08,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:09,580 INFO L124 PetriNetUnfolderBase]: 2514/5738 cut-off events. [2023-11-19 07:40:09,580 INFO L125 PetriNetUnfolderBase]: For 1929/2450 co-relation queries the response was YES. [2023-11-19 07:40:09,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12217 conditions, 5738 events. 2514/5738 cut-off events. For 1929/2450 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 49295 event pairs, 1355 based on Foata normal form. 87/5283 useless extension candidates. Maximal degree in co-relation 8263. Up to 2670 conditions per place. [2023-11-19 07:40:09,635 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 42 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-11-19 07:40:09,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 88 transitions, 407 flow [2023-11-19 07:40:09,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:09,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-11-19 07:40:09,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6322378716744914 [2023-11-19 07:40:09,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-11-19 07:40:09,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-11-19 07:40:09,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:09,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-11-19 07:40:09,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:09,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:09,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:09,644 INFO L175 Difference]: Start difference. First operand has 61 places, 72 transitions, 275 flow. Second operand 3 states and 404 transitions. [2023-11-19 07:40:09,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 88 transitions, 407 flow [2023-11-19 07:40:09,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 88 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:40:09,658 INFO L231 Difference]: Finished difference. Result has 64 places, 75 transitions, 294 flow [2023-11-19 07:40:09,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=64, PETRI_TRANSITIONS=75} [2023-11-19 07:40:09,660 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-11-19 07:40:09,660 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 75 transitions, 294 flow [2023-11-19 07:40:09,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:09,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:09,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:09,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:40:09,661 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:09,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1060978391, now seen corresponding path program 1 times [2023-11-19 07:40:09,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:09,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203065344] [2023-11-19 07:40:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:09,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:09,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:09,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203065344] [2023-11-19 07:40:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203065344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:09,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:09,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427327182] [2023-11-19 07:40:09,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:09,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:09,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 213 [2023-11-19 07:40:09,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 75 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:09,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:09,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 213 [2023-11-19 07:40:09,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:10,568 INFO L124 PetriNetUnfolderBase]: 2641/6105 cut-off events. [2023-11-19 07:40:10,569 INFO L125 PetriNetUnfolderBase]: For 2692/3297 co-relation queries the response was YES. [2023-11-19 07:40:10,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13570 conditions, 6105 events. 2641/6105 cut-off events. For 2692/3297 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 54652 event pairs, 1520 based on Foata normal form. 108/5591 useless extension candidates. Maximal degree in co-relation 9108. Up to 3061 conditions per place. [2023-11-19 07:40:10,620 INFO L140 encePairwiseOnDemand]: 207/213 looper letters, 46 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2023-11-19 07:40:10,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 97 transitions, 483 flow [2023-11-19 07:40:10,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-11-19 07:40:10,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.622848200312989 [2023-11-19 07:40:10,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-11-19 07:40:10,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-11-19 07:40:10,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:10,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-11-19 07:40:10,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,628 INFO L175 Difference]: Start difference. First operand has 64 places, 75 transitions, 294 flow. Second operand 3 states and 398 transitions. [2023-11-19 07:40:10,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 97 transitions, 483 flow [2023-11-19 07:40:10,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 97 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:10,648 INFO L231 Difference]: Finished difference. Result has 66 places, 80 transitions, 342 flow [2023-11-19 07:40:10,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=66, PETRI_TRANSITIONS=80} [2023-11-19 07:40:10,649 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2023-11-19 07:40:10,649 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 80 transitions, 342 flow [2023-11-19 07:40:10,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:10,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:10,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:40:10,650 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:10,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1363492139, now seen corresponding path program 1 times [2023-11-19 07:40:10,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:10,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545088095] [2023-11-19 07:40:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:10,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:10,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:10,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545088095] [2023-11-19 07:40:10,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545088095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:40:10,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116336479] [2023-11-19 07:40:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:10,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:10,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:10,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:40:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:10,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:10,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:10,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:40:10,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116336479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:10,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:40:10,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-19 07:40:10,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034815206] [2023-11-19 07:40:10,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:10,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:10,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:10,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:10,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:40:10,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 213 [2023-11-19 07:40:10,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 80 transitions, 342 flow. Second operand has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:10,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 213 [2023-11-19 07:40:10,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:12,033 INFO L124 PetriNetUnfolderBase]: 3447/7641 cut-off events. [2023-11-19 07:40:12,034 INFO L125 PetriNetUnfolderBase]: For 3349/3956 co-relation queries the response was YES. [2023-11-19 07:40:12,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18030 conditions, 7641 events. 3447/7641 cut-off events. For 3349/3956 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 67126 event pairs, 909 based on Foata normal form. 201/7226 useless extension candidates. Maximal degree in co-relation 10121. Up to 2240 conditions per place. [2023-11-19 07:40:12,092 INFO L140 encePairwiseOnDemand]: 205/213 looper letters, 104 selfloop transitions, 16 changer transitions 3/168 dead transitions. [2023-11-19 07:40:12,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 168 transitions, 895 flow [2023-11-19 07:40:12,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:40:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:40:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 907 transitions. [2023-11-19 07:40:12,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.608316566063045 [2023-11-19 07:40:12,096 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 907 transitions. [2023-11-19 07:40:12,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 907 transitions. [2023-11-19 07:40:12,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:12,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 907 transitions. [2023-11-19 07:40:12,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.57142857142858) internal successors, (907), 7 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:12,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:12,104 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:12,104 INFO L175 Difference]: Start difference. First operand has 66 places, 80 transitions, 342 flow. Second operand 7 states and 907 transitions. [2023-11-19 07:40:12,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 168 transitions, 895 flow [2023-11-19 07:40:12,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 168 transitions, 865 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:12,113 INFO L231 Difference]: Finished difference. Result has 73 places, 95 transitions, 426 flow [2023-11-19 07:40:12,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=426, PETRI_PLACES=73, PETRI_TRANSITIONS=95} [2023-11-19 07:40:12,114 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2023-11-19 07:40:12,114 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 95 transitions, 426 flow [2023-11-19 07:40:12,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:12,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:12,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:12,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:12,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:12,332 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:12,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash 29023669, now seen corresponding path program 1 times [2023-11-19 07:40:12,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:12,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635237540] [2023-11-19 07:40:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:12,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:12,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:12,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635237540] [2023-11-19 07:40:12,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635237540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:12,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:12,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:12,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627694565] [2023-11-19 07:40:12,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:12,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:12,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 213 [2023-11-19 07:40:12,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 95 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:12,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:12,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 213 [2023-11-19 07:40:12,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:12,751 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, 9#L690-1true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-19 07:40:12,751 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-19 07:40:12,751 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:40:12,752 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:40:12,752 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:40:12,752 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), 64#L690-3true, Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-19 07:40:12,752 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-19 07:40:12,752 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:40:12,752 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:40:12,752 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:40:12,755 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, 41#L690-5true, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-19 07:40:12,755 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-19 07:40:12,755 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:40:12,755 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:40:12,755 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:40:12,803 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, 113#L691true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-19 07:40:12,803 INFO L294 olderBase$Statistics]: this new event has 35 ancestors and is cut-off event [2023-11-19 07:40:12,803 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:40:12,803 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:40:12,804 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:40:13,596 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([547] L705-1-->ULTIMATE.startEXIT: Formula: (and (= |v_ULTIMATE.start_main_#res#1_22| |v_ULTIMATE.start_#t~ret13#1_8|) (= |v_ULTIMATE.start_main_#res#1_22| v_~data~0_34)) InVars {~data~0=v_~data~0_34} OutVars{ULTIMATE.start_main_#t~post6#1=|v_ULTIMATE.start_main_#t~post6#1_50|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_34|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_52|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_22|, ULTIMATE.start_main_~#tid~0#1.offset=|v_ULTIMATE.start_main_~#tid~0#1.offset_95|, ULTIMATE.start_main_~#tid~0#1.base=|v_ULTIMATE.start_main_~#tid~0#1.base_101|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_85|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_43|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_48|, ULTIMATE.start_main_#t~post7#1=|v_ULTIMATE.start_main_#t~post7#1_36|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_50|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_49|, ULTIMATE.start_main_#t~ret12#1=|v_ULTIMATE.start_main_#t~ret12#1_55|, ULTIMATE.start_#t~ret13#1=|v_ULTIMATE.start_#t~ret13#1_8|, ~data~0=v_~data~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post6#1, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~#tid~0#1.offset, ULTIMATE.start_main_~#tid~0#1.base, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~post7#1, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_~threads_total~0#1, ULTIMATE.start_main_#t~ret12#1, ULTIMATE.start_#t~ret13#1][75], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 2#ULTIMATE.startEXITtrue, threadThread2of2ForFork0InUse, 166#(<= 0 ~threads_alive~0), Black: 135#true, 5#threadEXITtrue, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 106#L692-1true, 227#true, Black: 146#true, Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-19 07:40:13,596 INFO L294 olderBase$Statistics]: this new event has 43 ancestors and is cut-off event [2023-11-19 07:40:13,596 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-19 07:40:13,596 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-19 07:40:13,596 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-19 07:40:13,884 INFO L124 PetriNetUnfolderBase]: 4478/9265 cut-off events. [2023-11-19 07:40:13,885 INFO L125 PetriNetUnfolderBase]: For 7980/8745 co-relation queries the response was YES. [2023-11-19 07:40:13,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25031 conditions, 9265 events. 4478/9265 cut-off events. For 7980/8745 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 79237 event pairs, 2056 based on Foata normal form. 203/8674 useless extension candidates. Maximal degree in co-relation 21512. Up to 6119 conditions per place. [2023-11-19 07:40:13,952 INFO L140 encePairwiseOnDemand]: 205/213 looper letters, 68 selfloop transitions, 15 changer transitions 0/121 dead transitions. [2023-11-19 07:40:13,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 121 transitions, 709 flow [2023-11-19 07:40:13,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-19 07:40:13,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6103286384976526 [2023-11-19 07:40:13,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-19 07:40:13,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-19 07:40:13,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:13,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-19 07:40:13,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:13,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:13,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:13,959 INFO L175 Difference]: Start difference. First operand has 73 places, 95 transitions, 426 flow. Second operand 3 states and 390 transitions. [2023-11-19 07:40:13,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 121 transitions, 709 flow [2023-11-19 07:40:13,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 709 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:40:13,974 INFO L231 Difference]: Finished difference. Result has 76 places, 106 transitions, 549 flow [2023-11-19 07:40:13,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=549, PETRI_PLACES=76, PETRI_TRANSITIONS=106} [2023-11-19 07:40:13,976 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2023-11-19 07:40:13,976 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 106 transitions, 549 flow [2023-11-19 07:40:13,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:13,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:13,977 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:13,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:40:13,977 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:13,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1071481673, now seen corresponding path program 1 times [2023-11-19 07:40:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:13,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787375684] [2023-11-19 07:40:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:40:14,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:14,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787375684] [2023-11-19 07:40:14,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787375684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:14,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:14,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:14,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457021425] [2023-11-19 07:40:14,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:14,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:14,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:14,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:14,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:14,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 213 [2023-11-19 07:40:14,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 106 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:14,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:14,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 213 [2023-11-19 07:40:14,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:15,089 INFO L124 PetriNetUnfolderBase]: 3885/8288 cut-off events. [2023-11-19 07:40:15,089 INFO L125 PetriNetUnfolderBase]: For 11421/13313 co-relation queries the response was YES. [2023-11-19 07:40:15,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24637 conditions, 8288 events. 3885/8288 cut-off events. For 11421/13313 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 73216 event pairs, 1589 based on Foata normal form. 427/7852 useless extension candidates. Maximal degree in co-relation 20622. Up to 4624 conditions per place. [2023-11-19 07:40:15,144 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 70 selfloop transitions, 6 changer transitions 0/132 dead transitions. [2023-11-19 07:40:15,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 132 transitions, 823 flow [2023-11-19 07:40:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-11-19 07:40:15,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.621283255086072 [2023-11-19 07:40:15,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-11-19 07:40:15,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-11-19 07:40:15,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:15,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-11-19 07:40:15,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,151 INFO L175 Difference]: Start difference. First operand has 76 places, 106 transitions, 549 flow. Second operand 3 states and 397 transitions. [2023-11-19 07:40:15,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 132 transitions, 823 flow [2023-11-19 07:40:15,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 132 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:40:15,170 INFO L231 Difference]: Finished difference. Result has 78 places, 109 transitions, 574 flow [2023-11-19 07:40:15,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=78, PETRI_TRANSITIONS=109} [2023-11-19 07:40:15,171 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 21 predicate places. [2023-11-19 07:40:15,171 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 109 transitions, 574 flow [2023-11-19 07:40:15,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:15,172 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:15,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:40:15,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 07:40:15,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:15,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2129836717, now seen corresponding path program 1 times [2023-11-19 07:40:15,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:15,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225654461] [2023-11-19 07:40:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:15,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:15,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:15,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:15,218 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:40:15,221 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-19 07:40:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-19 07:40:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-19 07:40:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-19 07:40:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-19 07:40:15,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-19 07:40:15,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 07:40:15,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-19 07:40:15,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-19 07:40:15,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-19 07:40:15,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-19 07:40:15,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-19 07:40:15,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-19 07:40:15,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-19 07:40:15,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-19 07:40:15,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:40:15,225 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:15,230 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-19 07:40:15,230 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:40:15,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:40:15,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-19 07:40:15,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-19 07:40:15,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-19 07:40:15,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:40:15 BasicIcfg [2023-11-19 07:40:15,286 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:40:15,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:40:15,286 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:40:15,286 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:40:15,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:01" (3/4) ... [2023-11-19 07:40:15,289 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:40:15,290 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:40:15,290 INFO L158 Benchmark]: Toolchain (without parser) took 15402.61ms. Allocated memory was 132.1MB in the beginning and 729.8MB in the end (delta: 597.7MB). Free memory was 69.2MB in the beginning and 321.2MB in the end (delta: -251.9MB). Peak memory consumption was 348.2MB. Max. memory is 16.1GB. [2023-11-19 07:40:15,291 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:15,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.45ms. Allocated memory was 132.1MB in the beginning and 182.5MB in the end (delta: 50.3MB). Free memory was 69.1MB in the beginning and 142.9MB in the end (delta: -73.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-19 07:40:15,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.20ms. Allocated memory is still 182.5MB. Free memory was 142.9MB in the beginning and 140.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:15,292 INFO L158 Benchmark]: Boogie Preprocessor took 71.83ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 139.9MB in the end (delta: 859.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:15,292 INFO L158 Benchmark]: RCFGBuilder took 493.84ms. Allocated memory is still 182.5MB. Free memory was 139.9MB in the beginning and 124.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:40:15,292 INFO L158 Benchmark]: TraceAbstraction took 14161.34ms. Allocated memory was 182.5MB in the beginning and 729.8MB in the end (delta: 547.4MB). Free memory was 124.0MB in the beginning and 321.2MB in the end (delta: -197.2MB). Peak memory consumption was 350.0MB. Max. memory is 16.1GB. [2023-11-19 07:40:15,293 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 729.8MB. Free memory is still 321.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:15,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.45ms. Allocated memory was 132.1MB in the beginning and 182.5MB in the end (delta: 50.3MB). Free memory was 69.1MB in the beginning and 142.9MB in the end (delta: -73.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.20ms. Allocated memory is still 182.5MB. Free memory was 142.9MB in the beginning and 140.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.83ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 139.9MB in the end (delta: 859.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 493.84ms. Allocated memory is still 182.5MB. Free memory was 139.9MB in the beginning and 124.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14161.34ms. Allocated memory was 182.5MB in the beginning and 729.8MB in the end (delta: 547.4MB). Free memory was 124.0MB in the beginning and 321.2MB in the end (delta: -197.2MB). Peak memory consumption was 350.0MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 729.8MB. Free memory is still 321.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 103 PlacesBefore, 37 PlacesAfterwards, 104 TransitionsBefore, 36 TransitionsAfterwards, 2652 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 8163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3710, independent: 3380, independent conditional: 0, independent unconditional: 3380, dependent: 330, dependent conditional: 0, dependent unconditional: 330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1306, independent: 1260, independent conditional: 0, independent unconditional: 1260, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3710, independent: 2120, independent conditional: 0, independent unconditional: 2120, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 1306, unknown conditional: 0, unknown unconditional: 1306] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 132 PlacesBefore, 57 PlacesAfterwards, 131 TransitionsBefore, 54 TransitionsAfterwards, 6708 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 24740 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8486, independent: 7957, independent conditional: 0, independent unconditional: 7957, dependent: 529, dependent conditional: 0, dependent unconditional: 529, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3217, independent: 3136, independent conditional: 0, independent unconditional: 3136, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8486, independent: 4821, independent conditional: 0, independent unconditional: 4821, dependent: 448, dependent conditional: 0, dependent unconditional: 448, unknown: 3217, unknown conditional: 0, unknown unconditional: 3217] , Statistics on independence cache: Total cache size (in pairs): 485, Positive cache size: 433, Positive conditional cache size: 0, Positive unconditional cache size: 433, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 692]: Data race detected [2023-11-19 07:40:15,323 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:40:15,324 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-19 07:40:15,324 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-19 07:40:15,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-19 07:40:15,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:40:15,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-19 07:40:15,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-19 07:40:15,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; [L686] 0 int data = 0; [L687] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 int threads_total = __VERIFIER_nondet_int(); [L697] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) [L697] RET 0 assume_abort_if_not(threads_total >= 0) [L698] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=2] [L698] COND TRUE 0 i < threads_total [L699] 0 threads_alive++ [L700] 0 pthread_t tid; [L701] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L702] EXPR 0 \read(tid) [L702] 0 pthread_detach(tid) [L698] 0 i++ [L698] COND TRUE 0 i < threads_total [L699] 0 threads_alive++ VAL [arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L690] 1 data = __VERIFIER_nondet_int() [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] [L699] 0 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] Now there is a data race on ~threads_alive~0 between C: threads_alive++ [699] and C: threads_alive-- [692] - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 128 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 50 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 155 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.3s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 661 IncrementalHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 22 mSDtfsCounter, 661 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 2 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 8/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:40:15,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6537271c-a956-472c-89b1-1a46be35bf3c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE