./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/40_barrier_vf-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/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_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/40_barrier_vf-pthread.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/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_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/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 828cbbb8bb1b7fb83d1c4d35071bdac7e1b4ae65dfc83ebb19446976ecd8d980 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:28,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:28,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:50:28,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:28,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:28,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:28,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:28,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:28,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:28,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:28,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:28,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:28,644 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:28,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:28,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:28,647 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:28,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:28,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:28,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:28,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:28,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:28,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:28,651 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:50:28,652 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:28,652 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:28,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:28,653 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:28,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:28,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:28,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:28,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:28,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:28,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:28,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:28,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:28,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:28,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:28,659 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:28,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:28,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:28,660 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:28,661 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_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 828cbbb8bb1b7fb83d1c4d35071bdac7e1b4ae65dfc83ebb19446976ecd8d980 [2023-11-19 07:50:28,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:29,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:29,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:29,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:29,011 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:29,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/40_barrier_vf-pthread.i [2023-11-19 07:50:32,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:32,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:32,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/sv-benchmarks/c/pthread-ext/40_barrier_vf-pthread.i [2023-11-19 07:50:32,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/data/e771298ef/5f5d8f17c5c04067b3b688dd368615f2/FLAG36873c421 [2023-11-19 07:50:32,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/data/e771298ef/5f5d8f17c5c04067b3b688dd368615f2 [2023-11-19 07:50:32,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:32,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:32,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:32,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:32,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:32,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:32" (1/1) ... [2023-11-19 07:50:32,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1362e4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:32, skipping insertion in model container [2023-11-19 07:50:32,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:32" (1/1) ... [2023-11-19 07:50:32,711 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:33,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:33,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:33,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:33,143 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:33,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33 WrapperNode [2023-11-19 07:50:33,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:33,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:33,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:33,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:33,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,198 INFO L138 Inliner]: procedures = 164, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2023-11-19 07:50:33,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:33,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:33,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:33,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:33,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:33,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:33,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:33,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:33,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (1/1) ... [2023-11-19 07:50:33,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:33,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:33,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:33,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a67fbe8-c138-45a8-8cf3-510b0d79ba99/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:50:33,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:50:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:50:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:50:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:50:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:50:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:50:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:33,362 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 07:50:33,565 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:33,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:33,807 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:33,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:33,819 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:50:33,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:33 BoogieIcfgContainer [2023-11-19 07:50:33,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:33,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:33,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:33,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:33,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:32" (1/3) ... [2023-11-19 07:50:33,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9c21e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:33, skipping insertion in model container [2023-11-19 07:50:33,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:33" (2/3) ... [2023-11-19 07:50:33,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9c21e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:33, skipping insertion in model container [2023-11-19 07:50:33,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:33" (3/3) ... [2023-11-19 07:50:33,835 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-pthread.i [2023-11-19 07:50:33,845 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:50:33,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:33,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:50:33,855 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:50:33,918 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:50:33,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 98 transitions, 200 flow [2023-11-19 07:50:34,014 INFO L124 PetriNetUnfolderBase]: 7/109 cut-off events. [2023-11-19 07:50:34,015 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:34,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 109 events. 7/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 139 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 66. Up to 4 conditions per place. [2023-11-19 07:50:34,021 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 98 transitions, 200 flow [2023-11-19 07:50:34,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 98 transitions, 200 flow [2023-11-19 07:50:34,031 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:50:34,042 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 98 transitions, 200 flow [2023-11-19 07:50:34,045 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 98 transitions, 200 flow [2023-11-19 07:50:34,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 98 transitions, 200 flow [2023-11-19 07:50:34,077 INFO L124 PetriNetUnfolderBase]: 7/109 cut-off events. [2023-11-19 07:50:34,078 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:34,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 109 events. 7/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 139 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 66. Up to 4 conditions per place. [2023-11-19 07:50:34,082 INFO L119 LiptonReduction]: Number of co-enabled transitions 1484 [2023-11-19 07:50:37,653 INFO L134 LiptonReduction]: Checked pairs total: 1333 [2023-11-19 07:50:37,653 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-11-19 07:50:37,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:37,681 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;@989f979, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:37,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 07:50:37,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:50:37,685 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-19 07:50:37,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:37,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:37,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:50:37,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:50:37,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash 12999872, now seen corresponding path program 1 times [2023-11-19 07:50:37,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:37,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859958730] [2023-11-19 07:50:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:37,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:37,910 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 07:50:37,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:37,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859958730] [2023-11-19 07:50:37,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859958730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:37,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:37,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:50:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866067380] [2023-11-19 07:50:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:37,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:50:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:50:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:50:37,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 212 [2023-11-19 07:50:37,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 16 transitions, 36 flow. Second operand has 2 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 07:50:37,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:37,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 212 [2023-11-19 07:50:37,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:38,021 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2023-11-19 07:50:38,022 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:38,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 15 events. 5/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 2 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 20. Up to 14 conditions per place. [2023-11-19 07:50:38,024 INFO L140 encePairwiseOnDemand]: 203/212 looper letters, 6 selfloop transitions, 0 changer transitions 0/7 dead transitions. [2023-11-19 07:50:38,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 7 transitions, 30 flow [2023-11-19 07:50:38,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:50:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:50:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 195 transitions. [2023-11-19 07:50:38,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45990566037735847 [2023-11-19 07:50:38,050 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 195 transitions. [2023-11-19 07:50:38,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 195 transitions. [2023-11-19 07:50:38,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:38,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 195 transitions. [2023-11-19 07:50:38,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states 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 07:50:38,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 07:50:38,080 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 07:50:38,082 INFO L175 Difference]: Start difference. First operand has 17 places, 16 transitions, 36 flow. Second operand 2 states and 195 transitions. [2023-11-19 07:50:38,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 7 transitions, 30 flow [2023-11-19 07:50:38,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:38,089 INFO L231 Difference]: Finished difference. Result has 10 places, 7 transitions, 18 flow [2023-11-19 07:50:38,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=10, PETRI_TRANSITIONS=7} [2023-11-19 07:50:38,098 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -7 predicate places. [2023-11-19 07:50:38,099 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 7 transitions, 18 flow [2023-11-19 07:50:38,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 07:50:38,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:38,101 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:50:38,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:50:38,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-19 07:50:38,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash -392051462, now seen corresponding path program 1 times [2023-11-19 07:50:38,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:38,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965264045] [2023-11-19 07:50:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:50:38,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:50:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:50:38,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:50:38,217 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:50:38,218 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2023-11-19 07:50:38,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-11-19 07:50:38,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-11-19 07:50:38,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-11-19 07:50:38,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-11-19 07:50:38,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-11-19 07:50:38,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-11-19 07:50:38,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-11-19 07:50:38,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-11-19 07:50:38,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-11-19 07:50:38,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-11-19 07:50:38,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-11-19 07:50:38,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-11-19 07:50:38,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:50:38,224 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:50:38,228 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:50:38,228 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:50:38,269 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:50:38,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 314 flow [2023-11-19 07:50:38,377 INFO L124 PetriNetUnfolderBase]: 13/176 cut-off events. [2023-11-19 07:50:38,378 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:50:38,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 176 events. 13/176 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 388 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 119. Up to 6 conditions per place. [2023-11-19 07:50:38,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 152 transitions, 314 flow [2023-11-19 07:50:38,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 152 transitions, 314 flow [2023-11-19 07:50:38,390 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:50:38,391 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 152 transitions, 314 flow [2023-11-19 07:50:38,391 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 152 transitions, 314 flow [2023-11-19 07:50:38,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 314 flow [2023-11-19 07:50:38,457 INFO L124 PetriNetUnfolderBase]: 13/176 cut-off events. [2023-11-19 07:50:38,457 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:50:38,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 176 events. 13/176 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 388 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 119. Up to 6 conditions per place. [2023-11-19 07:50:38,470 INFO L119 LiptonReduction]: Number of co-enabled transitions 8692 [2023-11-19 07:50:41,526 INFO L134 LiptonReduction]: Checked pairs total: 40549 [2023-11-19 07:50:41,529 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-11-19 07:50:41,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:41,542 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;@989f979, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:41,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-11-19 07:50:41,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:50:41,549 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-19 07:50:41,549 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:50:41,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:41,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:50:41,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 07:50:41,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 122694160, now seen corresponding path program 1 times [2023-11-19 07:50:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470342464] [2023-11-19 07:50:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,622 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 07:50:41,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470342464] [2023-11-19 07:50:41,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470342464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:41,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:41,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960218211] [2023-11-19 07:50:41,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:41,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:41,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:41,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:41,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 252 [2023-11-19 07:50:41,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states 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 07:50:41,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:41,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 252 [2023-11-19 07:50:41,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:41,998 INFO L124 PetriNetUnfolderBase]: 764/2021 cut-off events. [2023-11-19 07:50:41,999 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-19 07:50:42,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3371 conditions, 2021 events. 764/2021 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 15520 event pairs, 258 based on Foata normal form. 262/2036 useless extension candidates. Maximal degree in co-relation 1991. Up to 822 conditions per place. [2023-11-19 07:50:42,015 INFO L140 encePairwiseOnDemand]: 230/252 looper letters, 50 selfloop transitions, 12 changer transitions 0/93 dead transitions. [2023-11-19 07:50:42,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 93 transitions, 325 flow [2023-11-19 07:50:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:42,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-11-19 07:50:42,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2023-11-19 07:50:42,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-11-19 07:50:42,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-11-19 07:50:42,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:42,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-11-19 07:50:42,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:42,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states 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 07:50:42,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states 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 07:50:42,032 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 152 flow. Second operand 3 states and 444 transitions. [2023-11-19 07:50:42,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 93 transitions, 325 flow [2023-11-19 07:50:42,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 93 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:42,038 INFO L231 Difference]: Finished difference. Result has 71 places, 77 transitions, 244 flow [2023-11-19 07:50:42,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=71, PETRI_TRANSITIONS=77} [2023-11-19 07:50:42,039 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places. [2023-11-19 07:50:42,039 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 244 flow [2023-11-19 07:50:42,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states 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 07:50:42,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:42,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:42,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:50:42,045 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 07:50:42,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:42,045 INFO L85 PathProgramCache]: Analyzing trace with hash 824085116, now seen corresponding path program 1 times [2023-11-19 07:50:42,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:42,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901621730] [2023-11-19 07:50:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:42,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:42,144 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 07:50:42,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:42,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901621730] [2023-11-19 07:50:42,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901621730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:42,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:42,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:42,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261978747] [2023-11-19 07:50:42,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:42,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:42,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:42,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:42,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 252 [2023-11-19 07:50:42,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 77 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 07:50:42,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:42,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 252 [2023-11-19 07:50:42,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:42,499 INFO L124 PetriNetUnfolderBase]: 738/1997 cut-off events. [2023-11-19 07:50:42,499 INFO L125 PetriNetUnfolderBase]: For 465/483 co-relation queries the response was YES. [2023-11-19 07:50:42,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3959 conditions, 1997 events. 738/1997 cut-off events. For 465/483 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 15543 event pairs, 405 based on Foata normal form. 2/1706 useless extension candidates. Maximal degree in co-relation 2146. Up to 1010 conditions per place. [2023-11-19 07:50:42,518 INFO L140 encePairwiseOnDemand]: 244/252 looper letters, 43 selfloop transitions, 11 changer transitions 0/96 dead transitions. [2023-11-19 07:50:42,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 96 transitions, 421 flow [2023-11-19 07:50:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:42,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2023-11-19 07:50:42,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5502645502645502 [2023-11-19 07:50:42,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2023-11-19 07:50:42,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2023-11-19 07:50:42,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:42,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2023-11-19 07:50:42,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 07:50:42,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states 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 07:50:42,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states 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 07:50:42,528 INFO L175 Difference]: Start difference. First operand has 71 places, 77 transitions, 244 flow. Second operand 3 states and 416 transitions. [2023-11-19 07:50:42,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 96 transitions, 421 flow [2023-11-19 07:50:42,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 96 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:50:42,540 INFO L231 Difference]: Finished difference. Result has 73 places, 86 transitions, 318 flow [2023-11-19 07:50:42,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=73, PETRI_TRANSITIONS=86} [2023-11-19 07:50:42,543 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2023-11-19 07:50:42,544 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 86 transitions, 318 flow [2023-11-19 07:50:42,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 07:50:42,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:42,545 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:50:42,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:50:42,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 07:50:42,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:42,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1575691190, now seen corresponding path program 1 times [2023-11-19 07:50:42,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:42,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059202147] [2023-11-19 07:50:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:42,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:50:42,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:50:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:50:42,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:50:42,620 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:50:42,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2023-11-19 07:50:42,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2023-11-19 07:50:42,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2023-11-19 07:50:42,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2023-11-19 07:50:42,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2023-11-19 07:50:42,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2023-11-19 07:50:42,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2023-11-19 07:50:42,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2023-11-19 07:50:42,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2023-11-19 07:50:42,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2023-11-19 07:50:42,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2023-11-19 07:50:42,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2023-11-19 07:50:42,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2023-11-19 07:50:42,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2023-11-19 07:50:42,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2023-11-19 07:50:42,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2023-11-19 07:50:42,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2023-11-19 07:50:42,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2023-11-19 07:50:42,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2023-11-19 07:50:42,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:50:42,625 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:50:42,626 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:50:42,627 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:50:42,656 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:50:42,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 206 transitions, 430 flow [2023-11-19 07:50:42,696 INFO L124 PetriNetUnfolderBase]: 19/243 cut-off events. [2023-11-19 07:50:42,696 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:50:42,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 243 events. 19/243 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 723 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 180. Up to 8 conditions per place. [2023-11-19 07:50:42,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 206 transitions, 430 flow [2023-11-19 07:50:42,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 206 transitions, 430 flow [2023-11-19 07:50:42,703 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:50:42,703 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 206 transitions, 430 flow [2023-11-19 07:50:42,704 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 206 transitions, 430 flow [2023-11-19 07:50:42,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 206 transitions, 430 flow [2023-11-19 07:50:42,740 INFO L124 PetriNetUnfolderBase]: 19/243 cut-off events. [2023-11-19 07:50:42,741 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:50:42,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 243 events. 19/243 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 723 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 180. Up to 8 conditions per place. [2023-11-19 07:50:42,761 INFO L119 LiptonReduction]: Number of co-enabled transitions 21624 [2023-11-19 07:50:45,966 INFO L134 LiptonReduction]: Checked pairs total: 108404 [2023-11-19 07:50:45,967 INFO L136 LiptonReduction]: Total number of compositions: 132 [2023-11-19 07:50:45,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:45,970 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;@989f979, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:45,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-19 07:50:45,972 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:50:45,972 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-19 07:50:45,973 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:50:45,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:45,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:50:45,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:50:45,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:45,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1179437482, now seen corresponding path program 1 times [2023-11-19 07:50:45,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563896684] [2023-11-19 07:50:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:45,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,026 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 07:50:46,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:46,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563896684] [2023-11-19 07:50:46,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563896684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:46,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:46,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:46,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586307561] [2023-11-19 07:50:46,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:46,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:46,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:46,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 338 [2023-11-19 07:50:46,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 07:50:46,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:46,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 338 [2023-11-19 07:50:46,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:51,651 INFO L124 PetriNetUnfolderBase]: 22707/47847 cut-off events. [2023-11-19 07:50:51,652 INFO L125 PetriNetUnfolderBase]: For 1813/1813 co-relation queries the response was YES. [2023-11-19 07:50:51,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81725 conditions, 47847 events. 22707/47847 cut-off events. For 1813/1813 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 524631 event pairs, 8560 based on Foata normal form. 7236/47902 useless extension candidates. Maximal degree in co-relation 25275. Up to 19859 conditions per place. [2023-11-19 07:50:52,213 INFO L140 encePairwiseOnDemand]: 305/338 looper letters, 72 selfloop transitions, 18 changer transitions 0/136 dead transitions. [2023-11-19 07:50:52,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 136 transitions, 482 flow [2023-11-19 07:50:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:52,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 600 transitions. [2023-11-19 07:50:52,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.591715976331361 [2023-11-19 07:50:52,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 600 transitions. [2023-11-19 07:50:52,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 600 transitions. [2023-11-19 07:50:52,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:52,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 600 transitions. [2023-11-19 07:50:52,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 07:50:52,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 07:50:52,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 07:50:52,225 INFO L175 Difference]: Start difference. First operand has 102 places, 104 transitions, 226 flow. Second operand 3 states and 600 transitions. [2023-11-19 07:50:52,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 136 transitions, 482 flow [2023-11-19 07:50:52,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 136 transitions, 478 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:52,231 INFO L231 Difference]: Finished difference. Result has 102 places, 113 transitions, 362 flow [2023-11-19 07:50:52,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=102, PETRI_TRANSITIONS=113} [2023-11-19 07:50:52,235 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2023-11-19 07:50:52,235 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 113 transitions, 362 flow [2023-11-19 07:50:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 07:50:52,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:52,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:52,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:50:52,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:50:52,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1484287368, now seen corresponding path program 1 times [2023-11-19 07:50:52,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:52,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741365931] [2023-11-19 07:50:52,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:52,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:52,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:52,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741365931] [2023-11-19 07:50:52,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741365931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:52,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:52,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:52,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900424813] [2023-11-19 07:50:52,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:52,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:52,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:52,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:52,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:52,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 338 [2023-11-19 07:50:52,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 113 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 07:50:52,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:52,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 338 [2023-11-19 07:50:52,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:56,133 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([980] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_172| |v_~#MTX~0.base_119|))) (and (= (store |v_#pthreadsMutex_172| |v_~#MTX~0.base_119| (store .cse0 |v_~#MTX~0.offset_119| 1)) |v_#pthreadsMutex_171|) (= (select .cse0 |v_~#MTX~0.offset_119|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_172|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_171|, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1_13|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1][142], [183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 47#L699-4true, 56#L709-5true, Black: 200#true, 202#(= |#race~count~0| 0), 10#L693-5true]) [2023-11-19 07:50:56,133 INFO L294 olderBase$Statistics]: this new event has 43 ancestors and is cut-off event [2023-11-19 07:50:56,133 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:50:56,133 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:50:56,134 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:50:56,414 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([980] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_172| |v_~#MTX~0.base_119|))) (and (= (store |v_#pthreadsMutex_172| |v_~#MTX~0.base_119| (store .cse0 |v_~#MTX~0.offset_119| 1)) |v_#pthreadsMutex_171|) (= (select .cse0 |v_~#MTX~0.offset_119|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_172|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_171|, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1_13|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1][142], [183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 47#L699-4true, 64#L709-4true, Black: 200#true, 202#(= |#race~count~0| 0), 10#L693-5true]) [2023-11-19 07:50:56,414 INFO L294 olderBase$Statistics]: this new event has 46 ancestors and is cut-off event [2023-11-19 07:50:56,414 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:50:56,415 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:50:56,415 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:50:56,916 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][135], [183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 99#L695-2true, thr1Thread3of3ForFork0InUse, 169#L699-4true, 56#L709-5true, Black: 200#true, 202#(= |#race~count~0| 0)]) [2023-11-19 07:50:56,916 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:50:56,916 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:50:56,917 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:50:56,917 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:50:57,094 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][135], [183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, 99#L695-2true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 169#L699-4true, 64#L709-4true, Black: 200#true, 202#(= |#race~count~0| 0)]) [2023-11-19 07:50:57,095 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:50:57,095 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:50:57,095 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:50:57,095 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:50:57,120 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][135], [120#L697-1true, 183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 169#L699-4true, 56#L709-5true, Black: 200#true, 202#(= |#race~count~0| 0)]) [2023-11-19 07:50:57,120 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:50:57,120 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:50:57,120 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:50:57,120 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:50:57,340 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][135], [120#L697-1true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), 183#L693-8true, thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 169#L699-4true, 64#L709-4true, Black: 200#true, 202#(= |#race~count~0| 0)]) [2023-11-19 07:50:57,341 INFO L294 olderBase$Statistics]: this new event has 55 ancestors and is cut-off event [2023-11-19 07:50:57,341 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:50:57,341 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:50:57,341 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:50:57,418 INFO L124 PetriNetUnfolderBase]: 21305/47531 cut-off events. [2023-11-19 07:50:57,419 INFO L125 PetriNetUnfolderBase]: For 13992/14698 co-relation queries the response was YES. [2023-11-19 07:50:57,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96681 conditions, 47531 events. 21305/47531 cut-off events. For 13992/14698 co-relation queries the response was YES. Maximal size of possible extension queue 1795. Compared 543446 event pairs, 11903 based on Foata normal form. 78/39595 useless extension candidates. Maximal degree in co-relation 56443. Up to 25338 conditions per place. [2023-11-19 07:50:57,830 INFO L140 encePairwiseOnDemand]: 326/338 looper letters, 63 selfloop transitions, 21 changer transitions 0/147 dead transitions. [2023-11-19 07:50:57,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 147 transitions, 662 flow [2023-11-19 07:50:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:57,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-11-19 07:50:57,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5601577909270217 [2023-11-19 07:50:57,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-11-19 07:50:57,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-11-19 07:50:57,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:57,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-11-19 07:50:57,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 07:50:57,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 07:50:57,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 07:50:57,841 INFO L175 Difference]: Start difference. First operand has 102 places, 113 transitions, 362 flow. Second operand 3 states and 568 transitions. [2023-11-19 07:50:57,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 147 transitions, 662 flow [2023-11-19 07:50:57,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 147 transitions, 608 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:50:57,903 INFO L231 Difference]: Finished difference. Result has 104 places, 132 transitions, 524 flow [2023-11-19 07:50:57,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=104, PETRI_TRANSITIONS=132} [2023-11-19 07:50:57,904 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2023-11-19 07:50:57,905 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 132 transitions, 524 flow [2023-11-19 07:50:57,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 07:50:57,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:57,906 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:57,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:50:57,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:50:57,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1524557834, now seen corresponding path program 1 times [2023-11-19 07:50:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:57,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652524369] [2023-11-19 07:50:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:57,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:57,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652524369] [2023-11-19 07:50:57,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652524369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:57,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:57,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:57,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790220494] [2023-11-19 07:50:57,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:57,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:57,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:57,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:57,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:57,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 338 [2023-11-19 07:50:57,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 132 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states 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 07:50:57,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:57,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 338 [2023-11-19 07:50:57,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:51:01,641 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([980] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_172| |v_~#MTX~0.base_119|))) (and (= (store |v_#pthreadsMutex_172| |v_~#MTX~0.base_119| (store .cse0 |v_~#MTX~0.offset_119| 1)) |v_#pthreadsMutex_171|) (= (select .cse0 |v_~#MTX~0.offset_119|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_172|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_171|, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1_13|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1][142], [183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, Black: 206#true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 47#L699-4true, 56#L709-5true, Black: 200#true, 10#L693-5true, 212#true]) [2023-11-19 07:51:01,641 INFO L294 olderBase$Statistics]: this new event has 43 ancestors and is cut-off event [2023-11-19 07:51:01,642 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:51:01,642 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:51:01,642 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:51:02,013 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([980] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_172| |v_~#MTX~0.base_119|))) (and (= (store |v_#pthreadsMutex_172| |v_~#MTX~0.base_119| (store .cse0 |v_~#MTX~0.offset_119| 1)) |v_#pthreadsMutex_171|) (= (select .cse0 |v_~#MTX~0.offset_119|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_172|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_119|, #pthreadsMutex=|v_#pthreadsMutex_171|, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1_13|, ~#MTX~0.offset=|v_~#MTX~0.offset_119|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread3of3ForFork0_Barrier2_#t~nondet6#1][142], [208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), 183#L693-8true, thr1Thread1of3ForFork0InUse, Black: 206#true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 47#L699-4true, 64#L709-4true, Black: 200#true, 10#L693-5true, 212#true]) [2023-11-19 07:51:02,013 INFO L294 olderBase$Statistics]: this new event has 46 ancestors and is cut-off event [2023-11-19 07:51:02,013 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:51:02,013 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:51:02,013 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:51:02,436 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][118], [208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), 183#L693-8true, thr1Thread1of3ForFork0InUse, Black: 206#true, 99#L695-2true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 169#L699-4true, 56#L709-5true, Black: 200#true, 212#true]) [2023-11-19 07:51:02,436 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:51:02,436 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:51:02,436 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:51:02,436 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:51:02,629 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][118], [183#L693-8true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), thr1Thread1of3ForFork0InUse, Black: 206#true, thr1Thread2of3ForFork0InUse, 99#L695-2true, thr1Thread3of3ForFork0InUse, 169#L699-4true, 64#L709-4true, Black: 200#true, 212#true]) [2023-11-19 07:51:02,629 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:51:02,629 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:51:02,630 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:51:02,630 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:51:02,884 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][118], [120#L697-1true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), 183#L693-8true, thr1Thread1of3ForFork0InUse, Black: 206#true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 169#L699-4true, 56#L709-5true, Black: 200#true, 212#true]) [2023-11-19 07:51:02,884 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:51:02,885 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:51:02,890 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:51:02,890 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:51:02,969 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1012] L700-1-->L699-4: Formula: (let ((.cse0 (select |v_#pthreadsMutex_188| |v_~#MTX~0.base_129|))) (and (= (store |v_#pthreadsMutex_188| |v_~#MTX~0.base_129| (store .cse0 |v_~#MTX~0.offset_129| 1)) |v_#pthreadsMutex_187|) (= (select .cse0 |v_~#MTX~0.offset_129|) 0))) InVars {~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_188|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|} OutVars{~#MTX~0.base=|v_~#MTX~0.base_129|, #pthreadsMutex=|v_#pthreadsMutex_187|, ~#MTX~0.offset=|v_~#MTX~0.offset_129|, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1_17|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1][118], [120#L697-1true, 208#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet3#1| |#race~count~0|), 183#L693-8true, thr1Thread1of3ForFork0InUse, Black: 206#true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 169#L699-4true, 64#L709-4true, Black: 200#true, 212#true]) [2023-11-19 07:51:02,970 INFO L294 olderBase$Statistics]: this new event has 55 ancestors and is cut-off event [2023-11-19 07:51:02,970 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:51:02,970 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:51:02,970 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:51:03,044 INFO L124 PetriNetUnfolderBase]: 23150/51190 cut-off events. [2023-11-19 07:51:03,044 INFO L125 PetriNetUnfolderBase]: For 25819/28041 co-relation queries the response was YES. [2023-11-19 07:51:03,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111041 conditions, 51190 events. 23150/51190 cut-off events. For 25819/28041 co-relation queries the response was YES. Maximal size of possible extension queue 1958. Compared 588018 event pairs, 12882 based on Foata normal form. 334/42191 useless extension candidates. Maximal degree in co-relation 58214. Up to 29631 conditions per place. [2023-11-19 07:51:03,460 INFO L140 encePairwiseOnDemand]: 327/338 looper letters, 80 selfloop transitions, 29 changer transitions 0/172 dead transitions. [2023-11-19 07:51:03,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 172 transitions, 939 flow [2023-11-19 07:51:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:51:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:51:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2023-11-19 07:51:03,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591715976331361 [2023-11-19 07:51:03,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 567 transitions. [2023-11-19 07:51:03,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 567 transitions. [2023-11-19 07:51:03,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:51:03,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 567 transitions. [2023-11-19 07:51:03,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states 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 07:51:03,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 07:51:03,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 07:51:03,473 INFO L175 Difference]: Start difference. First operand has 104 places, 132 transitions, 524 flow. Second operand 3 states and 567 transitions. [2023-11-19 07:51:03,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 172 transitions, 939 flow [2023-11-19 07:51:03,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 172 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:51:03,678 INFO L231 Difference]: Finished difference. Result has 105 places, 157 transitions, 759 flow [2023-11-19 07:51:03,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=759, PETRI_PLACES=105, PETRI_TRANSITIONS=157} [2023-11-19 07:51:03,681 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 3 predicate places. [2023-11-19 07:51:03,681 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 157 transitions, 759 flow [2023-11-19 07:51:03,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states 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 07:51:03,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:51:03,682 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-11-19 07:51:03,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:51:03,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:51:03,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:03,683 INFO L85 PathProgramCache]: Analyzing trace with hash -128046012, now seen corresponding path program 1 times [2023-11-19 07:51:03,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:03,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268139016] [2023-11-19 07:51:03,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:03,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:51:03,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:51:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:51:03,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:51:03,726 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:51:03,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-19 07:51:03,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-19 07:51:03,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-19 07:51:03,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-19 07:51:03,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-19 07:51:03,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-19 07:51:03,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-19 07:51:03,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-19 07:51:03,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-19 07:51:03,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-19 07:51:03,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-19 07:51:03,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-19 07:51:03,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-19 07:51:03,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-19 07:51:03,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-19 07:51:03,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-19 07:51:03,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-19 07:51:03,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-19 07:51:03,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-19 07:51:03,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-19 07:51:03,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-19 07:51:03,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-19 07:51:03,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-19 07:51:03,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-19 07:51:03,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-19 07:51:03,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:51:03,734 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:51:03,734 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:51:03,735 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-19 07:51:03,790 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:51:03,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 260 transitions, 548 flow [2023-11-19 07:51:03,850 INFO L124 PetriNetUnfolderBase]: 25/310 cut-off events. [2023-11-19 07:51:03,850 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 07:51:03,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 310 events. 25/310 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1053 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 251. Up to 10 conditions per place. [2023-11-19 07:51:03,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 260 transitions, 548 flow [2023-11-19 07:51:03,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 260 transitions, 548 flow [2023-11-19 07:51:03,862 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:51:03,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 260 transitions, 548 flow [2023-11-19 07:51:03,862 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 260 transitions, 548 flow [2023-11-19 07:51:03,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 260 transitions, 548 flow [2023-11-19 07:51:03,910 INFO L124 PetriNetUnfolderBase]: 25/310 cut-off events. [2023-11-19 07:51:03,911 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 07:51:03,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 310 events. 25/310 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1053 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 251. Up to 10 conditions per place. [2023-11-19 07:51:03,937 INFO L119 LiptonReduction]: Number of co-enabled transitions 40280 [2023-11-19 07:51:07,264 INFO L134 LiptonReduction]: Checked pairs total: 230671 [2023-11-19 07:51:07,264 INFO L136 LiptonReduction]: Total number of compositions: 163 [2023-11-19 07:51:07,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:51:07,267 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;@989f979, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:51:07,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-19 07:51:07,270 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:51:07,270 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-19 07:51:07,271 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:51:07,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:51:07,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:51:07,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-19 07:51:07,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash 44180784, now seen corresponding path program 1 times [2023-11-19 07:51:07,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:07,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931491259] [2023-11-19 07:51:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:07,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:07,309 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 07:51:07,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:07,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931491259] [2023-11-19 07:51:07,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931491259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:07,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:07,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:51:07,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315854654] [2023-11-19 07:51:07,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:07,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:51:07,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:07,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:51:07,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:51:07,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 423 [2023-11-19 07:51:07,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 136 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states 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 07:51:07,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:51:07,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 423 [2023-11-19 07:51:07,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand