./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:29:25,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:25,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:25,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:25,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:25,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:25,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:25,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:25,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:25,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:25,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:25,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:25,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:25,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:25,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:25,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:25,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:25,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:25,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:25,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:25,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:25,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:25,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:25,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:25,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:25,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:25,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:25,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:25,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:25,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:25,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:25,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:25,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:25,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:25,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:25,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:25,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:25,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:25,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:25,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:25,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:25,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:29:25,713 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:25,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:25,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:25,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:25,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:25,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:25,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:25,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:25,717 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:25,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:25,718 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:29:25,718 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:29:25,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:25,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:29:25,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:25,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:25,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:25,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:25,720 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:29:25,720 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:29:25,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:25,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:25,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:25,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:25,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:25,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:25,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:25,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:25,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:25,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:25,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:25,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:29:25,724 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:25,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:25,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:25,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-20 09:29:25,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:25,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:25,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:25,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:25,987 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:25,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-20 09:29:29,270 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:29,671 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:29,671 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-20 09:29:29,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/data/84727148a/dcd2ccc6ecc54bb2a21a1e1698cd6113/FLAGbb69b4e9d [2022-11-20 09:29:29,720 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/data/84727148a/dcd2ccc6ecc54bb2a21a1e1698cd6113 [2022-11-20 09:29:29,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:29,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:29,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:29,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:29,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:29,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e56d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29, skipping insertion in model container [2022-11-20 09:29:29,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:29,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:30,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:30,761 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:30,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:31,048 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:31,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31 WrapperNode [2022-11-20 09:29:31,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:31,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:31,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:31,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:31,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,122 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-20 09:29:31,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:31,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:31,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:31,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:31,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:31,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:31,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:31,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:31,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:31,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:31,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:31,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-20 09:29:31,269 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-20 09:29:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-20 09:29:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-20 09:29:31,270 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-20 09:29:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-20 09:29:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:31,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:29:31,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 09:29:31,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:31,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:31,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:31,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:31,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-20 09:29:31,275 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 09:29:31,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:29:31,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:29:31,277 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:29:31,646 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:31,648 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:32,084 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:32,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:32,102 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-20 09:29:32,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:32 BoogieIcfgContainer [2022-11-20 09:29:32,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:32,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:32,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:32,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:32,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:29" (1/3) ... [2022-11-20 09:29:32,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1eb990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:32, skipping insertion in model container [2022-11-20 09:29:32,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31" (2/3) ... [2022-11-20 09:29:32,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1eb990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:32, skipping insertion in model container [2022-11-20 09:29:32,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:32" (3/3) ... [2022-11-20 09:29:32,114 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-20 09:29:32,122 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:29:32,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:32,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-20 09:29:32,132 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:29:32,281 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 09:29:32,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 276 transitions, 568 flow [2022-11-20 09:29:32,501 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2022-11-20 09:29:32,502 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 09:29:32,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 31/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 654 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-11-20 09:29:32,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 276 transitions, 568 flow [2022-11-20 09:29:32,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 263 transitions, 538 flow [2022-11-20 09:29:32,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:32,552 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=LoopsAndPotentialCycles, 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;@2af838ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:32,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-20 09:29:32,566 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-11-20 09:29:32,570 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:29:32,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:32,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:32,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:32,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:32,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1785351063, now seen corresponding path program 1 times [2022-11-20 09:29:32,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:32,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990442632] [2022-11-20 09:29:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:32,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:33,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:33,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990442632] [2022-11-20 09:29:33,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990442632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:33,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:33,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:33,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290161376] [2022-11-20 09:29:33,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:33,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:33,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:33,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:33,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 276 [2022-11-20 09:29:33,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 263 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 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) [2022-11-20 09:29:33,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:33,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 276 [2022-11-20 09:29:33,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:33,281 INFO L130 PetriNetUnfolder]: 33/576 cut-off events. [2022-11-20 09:29:33,281 INFO L131 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-11-20 09:29:33,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 576 events. 33/576 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3158 event pairs, 15 based on Foata normal form. 87/567 useless extension candidates. Maximal degree in co-relation 483. Up to 52 conditions per place. [2022-11-20 09:29:33,323 INFO L137 encePairwiseOnDemand]: 255/276 looper letters, 13 selfloop transitions, 2 changer transitions 3/229 dead transitions. [2022-11-20 09:29:33,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 229 transitions, 500 flow [2022-11-20 09:29:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2022-11-20 09:29:33,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8852657004830918 [2022-11-20 09:29:33,343 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2022-11-20 09:29:33,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2022-11-20 09:29:33,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:33,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2022-11-20 09:29:33,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2022-11-20 09:29:33,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:33,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:33,365 INFO L175 Difference]: Start difference. First operand has 241 places, 263 transitions, 538 flow. Second operand 3 states and 733 transitions. [2022-11-20 09:29:33,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 229 transitions, 500 flow [2022-11-20 09:29:33,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 229 transitions, 492 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:29:33,374 INFO L231 Difference]: Finished difference. Result has 230 places, 226 transitions, 460 flow [2022-11-20 09:29:33,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=230, PETRI_TRANSITIONS=226} [2022-11-20 09:29:33,381 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -11 predicate places. [2022-11-20 09:29:33,381 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 226 transitions, 460 flow [2022-11-20 09:29:33,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 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) [2022-11-20 09:29:33,382 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:33,382 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:33,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:29:33,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:33,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:33,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1201519494, now seen corresponding path program 1 times [2022-11-20 09:29:33,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:33,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540970367] [2022-11-20 09:29:33,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:33,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:33,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:33,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540970367] [2022-11-20 09:29:33,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540970367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:33,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:33,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:33,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937591795] [2022-11-20 09:29:33,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:33,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:33,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:33,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:33,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 276 [2022-11-20 09:29:33,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 226 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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) [2022-11-20 09:29:33,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:33,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 276 [2022-11-20 09:29:33,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:33,742 INFO L130 PetriNetUnfolder]: 124/548 cut-off events. [2022-11-20 09:29:33,743 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 09:29:33,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 548 events. 124/548 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3157 event pairs, 72 based on Foata normal form. 1/509 useless extension candidates. Maximal degree in co-relation 726. Up to 223 conditions per place. [2022-11-20 09:29:33,748 INFO L137 encePairwiseOnDemand]: 260/276 looper letters, 17 selfloop transitions, 7 changer transitions 8/227 dead transitions. [2022-11-20 09:29:33,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 227 transitions, 520 flow [2022-11-20 09:29:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 699 transitions. [2022-11-20 09:29:33,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8442028985507246 [2022-11-20 09:29:33,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 699 transitions. [2022-11-20 09:29:33,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 699 transitions. [2022-11-20 09:29:33,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:33,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 699 transitions. [2022-11-20 09:29:33,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 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) [2022-11-20 09:29:33,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:33,758 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:33,759 INFO L175 Difference]: Start difference. First operand has 230 places, 226 transitions, 460 flow. Second operand 3 states and 699 transitions. [2022-11-20 09:29:33,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 227 transitions, 520 flow [2022-11-20 09:29:33,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 227 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:33,769 INFO L231 Difference]: Finished difference. Result has 220 places, 217 transitions, 468 flow [2022-11-20 09:29:33,769 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=220, PETRI_TRANSITIONS=217} [2022-11-20 09:29:33,770 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -21 predicate places. [2022-11-20 09:29:33,771 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 217 transitions, 468 flow [2022-11-20 09:29:33,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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) [2022-11-20 09:29:33,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:33,772 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:33,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:29:33,773 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash -975861444, now seen corresponding path program 1 times [2022-11-20 09:29:33,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:33,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611829721] [2022-11-20 09:29:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:33,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:34,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:34,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:34,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611829721] [2022-11-20 09:29:34,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611829721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:34,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:34,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:34,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235058213] [2022-11-20 09:29:34,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:34,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:34,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:34,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 276 [2022-11-20 09:29:34,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 217 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2022-11-20 09:29:34,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:34,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 276 [2022-11-20 09:29:34,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:34,142 INFO L130 PetriNetUnfolder]: 45/616 cut-off events. [2022-11-20 09:29:34,143 INFO L131 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2022-11-20 09:29:34,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 616 events. 45/616 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3546 event pairs, 9 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 466. Up to 63 conditions per place. [2022-11-20 09:29:34,150 INFO L137 encePairwiseOnDemand]: 272/276 looper letters, 10 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2022-11-20 09:29:34,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 218 transitions, 495 flow [2022-11-20 09:29:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 722 transitions. [2022-11-20 09:29:34,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8719806763285024 [2022-11-20 09:29:34,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 722 transitions. [2022-11-20 09:29:34,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 722 transitions. [2022-11-20 09:29:34,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:34,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 722 transitions. [2022-11-20 09:29:34,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2022-11-20 09:29:34,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:34,159 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:34,160 INFO L175 Difference]: Start difference. First operand has 220 places, 217 transitions, 468 flow. Second operand 3 states and 722 transitions. [2022-11-20 09:29:34,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 218 transitions, 495 flow [2022-11-20 09:29:34,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 218 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:29:34,167 INFO L231 Difference]: Finished difference. Result has 215 places, 217 transitions, 478 flow [2022-11-20 09:29:34,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=215, PETRI_TRANSITIONS=217} [2022-11-20 09:29:34,170 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -26 predicate places. [2022-11-20 09:29:34,170 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 217 transitions, 478 flow [2022-11-20 09:29:34,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2022-11-20 09:29:34,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:34,172 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:34,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:29:34,172 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:34,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:34,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1511086953, now seen corresponding path program 1 times [2022-11-20 09:29:34,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:34,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465237310] [2022-11-20 09:29:34,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:34,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:34,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:34,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:34,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465237310] [2022-11-20 09:29:34,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465237310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:34,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:34,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:34,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835759521] [2022-11-20 09:29:34,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:34,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:34,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:34,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:34,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:34,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 276 [2022-11-20 09:29:34,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 217 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 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) [2022-11-20 09:29:34,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:34,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 276 [2022-11-20 09:29:34,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:34,696 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [33#L1843-3true, 76#L1819-3true, 269#true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true]) [2022-11-20 09:29:34,697 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:34,697 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:34,697 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 09:29:34,697 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:34,705 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][105], [33#L1843-3true, 76#L1819-3true, 269#true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true]) [2022-11-20 09:29:34,705 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:34,706 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-20 09:29:34,706 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:34,706 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:34,714 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [33#L1843-3true, 269#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true]) [2022-11-20 09:29:34,715 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 09:29:34,715 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:34,715 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 09:29:34,716 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:34,716 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-20 09:29:34,746 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([708] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][173], [33#L1843-3true, Black: 259#true, 16#L1811-2true, 269#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 119#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-20 09:29:34,746 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-20 09:29:34,747 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-20 09:29:34,747 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-20 09:29:34,747 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:34,752 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][149], [33#L1843-3true, 16#L1811-2true, Black: 259#true, 269#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 261#(= |#race~stderr~0| 0), 119#L1824-2true]) [2022-11-20 09:29:34,753 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-20 09:29:34,753 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-20 09:29:34,753 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-20 09:29:34,753 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:34,766 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][149], [16#L1811-2true, Black: 259#true, 175#L1845-5true, 269#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 119#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-20 09:29:34,767 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-20 09:29:34,767 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-20 09:29:34,767 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 09:29:34,767 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-20 09:29:34,790 INFO L130 PetriNetUnfolder]: 218/1606 cut-off events. [2022-11-20 09:29:34,791 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 09:29:34,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 1606 events. 218/1606 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12150 event pairs, 35 based on Foata normal form. 0/1417 useless extension candidates. Maximal degree in co-relation 1922. Up to 184 conditions per place. [2022-11-20 09:29:34,809 INFO L137 encePairwiseOnDemand]: 265/276 looper letters, 24 selfloop transitions, 8 changer transitions 0/231 dead transitions. [2022-11-20 09:29:34,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 231 transitions, 572 flow [2022-11-20 09:29:34,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:34,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2022-11-20 09:29:34,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756038647342995 [2022-11-20 09:29:34,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 725 transitions. [2022-11-20 09:29:34,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 725 transitions. [2022-11-20 09:29:34,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:34,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 725 transitions. [2022-11-20 09:29:34,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 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) [2022-11-20 09:29:34,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:34,818 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:34,819 INFO L175 Difference]: Start difference. First operand has 215 places, 217 transitions, 478 flow. Second operand 3 states and 725 transitions. [2022-11-20 09:29:34,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 231 transitions, 572 flow [2022-11-20 09:29:34,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 231 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:29:34,825 INFO L231 Difference]: Finished difference. Result has 219 places, 225 transitions, 548 flow [2022-11-20 09:29:34,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=219, PETRI_TRANSITIONS=225} [2022-11-20 09:29:34,826 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -22 predicate places. [2022-11-20 09:29:34,826 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 225 transitions, 548 flow [2022-11-20 09:29:34,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 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) [2022-11-20 09:29:34,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:34,827 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:34,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:29:34,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:34,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:34,829 INFO L85 PathProgramCache]: Analyzing trace with hash -643493671, now seen corresponding path program 1 times [2022-11-20 09:29:34,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:34,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981131435] [2022-11-20 09:29:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:35,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:35,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981131435] [2022-11-20 09:29:35,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981131435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:35,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:35,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:35,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433285362] [2022-11-20 09:29:35,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:35,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:35,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:35,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:35,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:35,544 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 276 [2022-11-20 09:29:35,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 225 transitions, 548 flow. Second operand has 6 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 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) [2022-11-20 09:29:35,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:35,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 276 [2022-11-20 09:29:35,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:35,817 INFO L130 PetriNetUnfolder]: 110/1123 cut-off events. [2022-11-20 09:29:35,817 INFO L131 PetriNetUnfolder]: For 40/68 co-relation queries the response was YES. [2022-11-20 09:29:35,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1123 events. 110/1123 cut-off events. For 40/68 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7462 event pairs, 13 based on Foata normal form. 16/1027 useless extension candidates. Maximal degree in co-relation 1302. Up to 138 conditions per place. [2022-11-20 09:29:35,829 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 14 selfloop transitions, 4 changer transitions 0/224 dead transitions. [2022-11-20 09:29:35,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 224 transitions, 582 flow [2022-11-20 09:29:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:29:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1381 transitions. [2022-11-20 09:29:35,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8339371980676329 [2022-11-20 09:29:35,833 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1381 transitions. [2022-11-20 09:29:35,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1381 transitions. [2022-11-20 09:29:35,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:35,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1381 transitions. [2022-11-20 09:29:35,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.16666666666666) internal successors, (1381), 6 states have internal predecessors, (1381), 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) [2022-11-20 09:29:35,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 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) [2022-11-20 09:29:35,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 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) [2022-11-20 09:29:35,842 INFO L175 Difference]: Start difference. First operand has 219 places, 225 transitions, 548 flow. Second operand 6 states and 1381 transitions. [2022-11-20 09:29:35,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 224 transitions, 582 flow [2022-11-20 09:29:35,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 224 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:35,850 INFO L231 Difference]: Finished difference. Result has 221 places, 224 transitions, 538 flow [2022-11-20 09:29:35,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=538, PETRI_PLACES=221, PETRI_TRANSITIONS=224} [2022-11-20 09:29:35,852 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -20 predicate places. [2022-11-20 09:29:35,853 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 224 transitions, 538 flow [2022-11-20 09:29:35,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 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) [2022-11-20 09:29:35,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:35,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:35,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:29:35,854 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:35,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:35,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1925387304, now seen corresponding path program 1 times [2022-11-20 09:29:35,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:35,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430822219] [2022-11-20 09:29:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:35,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:35,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:35,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430822219] [2022-11-20 09:29:35,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430822219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:35,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:35,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:35,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244833181] [2022-11-20 09:29:35,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:35,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:35,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:35,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:35,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 276 [2022-11-20 09:29:35,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 224 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 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) [2022-11-20 09:29:35,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:35,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 276 [2022-11-20 09:29:35,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:36,223 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true]) [2022-11-20 09:29:36,223 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 09:29:36,223 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:36,223 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 09:29:36,224 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:36,241 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true]) [2022-11-20 09:29:36,241 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:36,241 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:36,241 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 09:29:36,242 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:36,242 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-20 09:29:36,249 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][105], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true]) [2022-11-20 09:29:36,249 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:36,249 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:36,250 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:36,250 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-20 09:29:36,301 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([708] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][171], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, Black: 259#true, 282#true, 16#L1811-2true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true, 119#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-20 09:29:36,301 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-20 09:29:36,301 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:36,302 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-20 09:29:36,302 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-20 09:29:36,306 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 16#L1811-2true, Black: 259#true, 282#true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true, 261#(= |#race~stderr~0| 0), 119#L1824-2true]) [2022-11-20 09:29:36,307 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-20 09:29:36,307 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:36,307 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-20 09:29:36,307 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-20 09:29:36,322 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 16#L1811-2true, Black: 259#true, 282#true, 175#L1845-5true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true, 119#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-20 09:29:36,322 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-20 09:29:36,322 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-20 09:29:36,322 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 09:29:36,322 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-20 09:29:36,346 INFO L130 PetriNetUnfolder]: 266/1956 cut-off events. [2022-11-20 09:29:36,346 INFO L131 PetriNetUnfolder]: For 134/173 co-relation queries the response was YES. [2022-11-20 09:29:36,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 1956 events. 266/1956 cut-off events. For 134/173 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15912 event pairs, 50 based on Foata normal form. 6/1754 useless extension candidates. Maximal degree in co-relation 2569. Up to 246 conditions per place. [2022-11-20 09:29:36,367 INFO L137 encePairwiseOnDemand]: 269/276 looper letters, 35 selfloop transitions, 10 changer transitions 0/241 dead transitions. [2022-11-20 09:29:36,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 687 flow [2022-11-20 09:29:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions. [2022-11-20 09:29:36,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8659420289855072 [2022-11-20 09:29:36,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 717 transitions. [2022-11-20 09:29:36,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions. [2022-11-20 09:29:36,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:36,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions. [2022-11-20 09:29:36,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2022-11-20 09:29:36,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:36,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:36,374 INFO L175 Difference]: Start difference. First operand has 221 places, 224 transitions, 538 flow. Second operand 3 states and 717 transitions. [2022-11-20 09:29:36,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 687 flow [2022-11-20 09:29:36,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 241 transitions, 680 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:29:36,381 INFO L231 Difference]: Finished difference. Result has 221 places, 232 transitions, 617 flow [2022-11-20 09:29:36,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=617, PETRI_PLACES=221, PETRI_TRANSITIONS=232} [2022-11-20 09:29:36,384 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -20 predicate places. [2022-11-20 09:29:36,384 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 232 transitions, 617 flow [2022-11-20 09:29:36,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 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) [2022-11-20 09:29:36,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:36,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:36,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:29:36,385 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1122457233, now seen corresponding path program 1 times [2022-11-20 09:29:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:36,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004045688] [2022-11-20 09:29:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:36,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:36,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004045688] [2022-11-20 09:29:36,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004045688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:36,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:36,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478851140] [2022-11-20 09:29:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:36,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:36,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:36,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 276 [2022-11-20 09:29:36,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 232 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2022-11-20 09:29:36,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:36,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 276 [2022-11-20 09:29:36,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:36,729 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:36,729 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 09:29:36,729 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:36,729 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 09:29:36,729 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:36,743 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 269#true, 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:36,744 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:36,744 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-20 09:29:36,744 INFO L386 tUnfolder$Statistics]: existing Event has 115 ancestors and is cut-off event [2022-11-20 09:29:36,744 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-20 09:29:36,754 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:36,755 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:36,755 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:36,755 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 09:29:36,755 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:36,755 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-20 09:29:36,765 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][105], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:36,765 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:36,765 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-20 09:29:36,765 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-20 09:29:36,765 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-20 09:29:36,828 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([708] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][170], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 16#L1811-2true, 282#true, Black: 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 261#(= |#race~stderr~0| 0), 119#L1824-2true]) [2022-11-20 09:29:36,829 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-20 09:29:36,829 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-20 09:29:36,829 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-20 09:29:36,829 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:36,835 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 16#L1811-2true, Black: 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 261#(= |#race~stderr~0| 0), 119#L1824-2true]) [2022-11-20 09:29:36,835 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-20 09:29:36,835 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:36,835 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-20 09:29:36,835 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-20 09:29:36,850 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 288#true, 16#L1811-2true, Black: 259#true, 282#true, 175#L1845-5true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 119#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-20 09:29:36,851 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-20 09:29:36,851 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 09:29:36,851 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-20 09:29:36,851 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-20 09:29:36,875 INFO L130 PetriNetUnfolder]: 287/1940 cut-off events. [2022-11-20 09:29:36,875 INFO L131 PetriNetUnfolder]: For 505/651 co-relation queries the response was YES. [2022-11-20 09:29:36,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2976 conditions, 1940 events. 287/1940 cut-off events. For 505/651 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 15339 event pairs, 43 based on Foata normal form. 4/1748 useless extension candidates. Maximal degree in co-relation 2768. Up to 258 conditions per place. [2022-11-20 09:29:36,892 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 38 selfloop transitions, 9 changer transitions 0/244 dead transitions. [2022-11-20 09:29:36,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 244 transitions, 764 flow [2022-11-20 09:29:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-20 09:29:36,895 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623188405797102 [2022-11-20 09:29:36,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-20 09:29:36,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-20 09:29:36,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:36,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-20 09:29:36,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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) [2022-11-20 09:29:36,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:36,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2022-11-20 09:29:36,899 INFO L175 Difference]: Start difference. First operand has 221 places, 232 transitions, 617 flow. Second operand 3 states and 714 transitions. [2022-11-20 09:29:36,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 244 transitions, 764 flow [2022-11-20 09:29:36,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 244 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:36,905 INFO L231 Difference]: Finished difference. Result has 223 places, 237 transitions, 665 flow [2022-11-20 09:29:36,906 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=665, PETRI_PLACES=223, PETRI_TRANSITIONS=237} [2022-11-20 09:29:36,907 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -18 predicate places. [2022-11-20 09:29:36,907 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 237 transitions, 665 flow [2022-11-20 09:29:36,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2022-11-20 09:29:36,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:36,908 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:36,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:29:36,908 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1503483389, now seen corresponding path program 1 times [2022-11-20 09:29:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:36,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148956994] [2022-11-20 09:29:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:37,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:37,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148956994] [2022-11-20 09:29:37,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148956994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:37,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:37,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:37,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453794304] [2022-11-20 09:29:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:37,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:37,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:37,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:37,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 276 [2022-11-20 09:29:37,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 237 transitions, 665 flow. Second operand has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 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) [2022-11-20 09:29:37,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:37,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 276 [2022-11-20 09:29:37,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:37,759 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([702] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][185], [Black: 269#true, 288#true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 10#L1830-1true, 23#L1808-7true]) [2022-11-20 09:29:37,760 INFO L383 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-11-20 09:29:37,760 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:37,760 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-20 09:29:37,760 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-20 09:29:37,777 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][194], [Black: 269#true, 288#true, 15#L1825-1true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 23#L1808-7true]) [2022-11-20 09:29:37,777 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:37,777 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-20 09:29:37,777 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-20 09:29:37,777 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-20 09:29:37,852 INFO L130 PetriNetUnfolder]: 198/1575 cut-off events. [2022-11-20 09:29:37,852 INFO L131 PetriNetUnfolder]: For 248/312 co-relation queries the response was YES. [2022-11-20 09:29:37,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2303 conditions, 1575 events. 198/1575 cut-off events. For 248/312 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11830 event pairs, 13 based on Foata normal form. 4/1424 useless extension candidates. Maximal degree in co-relation 2097. Up to 189 conditions per place. [2022-11-20 09:29:37,864 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 13 selfloop transitions, 4 changer transitions 0/236 dead transitions. [2022-11-20 09:29:37,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 236 transitions, 697 flow [2022-11-20 09:29:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:29:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2022-11-20 09:29:37,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-20 09:29:37,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1380 transitions. [2022-11-20 09:29:37,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1380 transitions. [2022-11-20 09:29:37,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:37,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1380 transitions. [2022-11-20 09:29:37,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 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) [2022-11-20 09:29:37,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 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) [2022-11-20 09:29:37,876 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 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) [2022-11-20 09:29:37,876 INFO L175 Difference]: Start difference. First operand has 223 places, 237 transitions, 665 flow. Second operand 6 states and 1380 transitions. [2022-11-20 09:29:37,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 236 transitions, 697 flow [2022-11-20 09:29:37,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 236 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:37,883 INFO L231 Difference]: Finished difference. Result has 225 places, 236 transitions, 653 flow [2022-11-20 09:29:37,883 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=653, PETRI_PLACES=225, PETRI_TRANSITIONS=236} [2022-11-20 09:29:37,884 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -16 predicate places. [2022-11-20 09:29:37,884 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 236 transitions, 653 flow [2022-11-20 09:29:37,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 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) [2022-11-20 09:29:37,885 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:37,885 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:37,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:29:37,885 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1174924328, now seen corresponding path program 1 times [2022-11-20 09:29:37,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:37,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989822129] [2022-11-20 09:29:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:37,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:38,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:38,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989822129] [2022-11-20 09:29:38,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989822129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:38,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:38,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:38,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552509213] [2022-11-20 09:29:38,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:38,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:38,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:38,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 09:29:38,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 236 transitions, 653 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2022-11-20 09:29:38,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:38,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 09:29:38,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:38,469 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([702] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][201], [Black: 269#true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 10#L1830-1true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:38,469 INFO L383 tUnfolder$Statistics]: this new event has 121 ancestors and is cut-off event [2022-11-20 09:29:38,469 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-20 09:29:38,470 INFO L386 tUnfolder$Statistics]: existing Event has 119 ancestors and is cut-off event [2022-11-20 09:29:38,470 INFO L386 tUnfolder$Statistics]: existing Event has 119 ancestors and is cut-off event [2022-11-20 09:29:38,495 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][211], [Black: 269#true, 33#L1843-3true, 15#L1825-1true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:38,495 INFO L383 tUnfolder$Statistics]: this new event has 123 ancestors and is cut-off event [2022-11-20 09:29:38,495 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-20 09:29:38,495 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-20 09:29:38,495 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-20 09:29:38,531 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([702] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][202], [Black: 269#true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 23#L1808-7true, 10#L1830-1true]) [2022-11-20 09:29:38,531 INFO L383 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-11-20 09:29:38,531 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-20 09:29:38,531 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-20 09:29:38,531 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-20 09:29:38,557 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][210], [Black: 269#true, 33#L1843-3true, 15#L1825-1true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 23#L1808-7true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-20 09:29:38,557 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:29:38,557 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-20 09:29:38,557 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-20 09:29:38,557 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-20 09:29:38,665 INFO L130 PetriNetUnfolder]: 381/3096 cut-off events. [2022-11-20 09:29:38,666 INFO L131 PetriNetUnfolder]: For 268/314 co-relation queries the response was YES. [2022-11-20 09:29:38,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4569 conditions, 3096 events. 381/3096 cut-off events. For 268/314 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 29705 event pairs, 27 based on Foata normal form. 23/2832 useless extension candidates. Maximal degree in co-relation 4329. Up to 308 conditions per place. [2022-11-20 09:29:38,690 INFO L137 encePairwiseOnDemand]: 268/276 looper letters, 33 selfloop transitions, 12 changer transitions 0/258 dead transitions. [2022-11-20 09:29:38,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 258 transitions, 790 flow [2022-11-20 09:29:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:29:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:29:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 946 transitions. [2022-11-20 09:29:38,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8568840579710145 [2022-11-20 09:29:38,693 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 946 transitions. [2022-11-20 09:29:38,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 946 transitions. [2022-11-20 09:29:38,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:38,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 946 transitions. [2022-11-20 09:29:38,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 236.5) internal successors, (946), 4 states have internal predecessors, (946), 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) [2022-11-20 09:29:38,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2022-11-20 09:29:38,699 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2022-11-20 09:29:38,699 INFO L175 Difference]: Start difference. First operand has 225 places, 236 transitions, 653 flow. Second operand 4 states and 946 transitions. [2022-11-20 09:29:38,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 258 transitions, 790 flow [2022-11-20 09:29:38,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 258 transitions, 783 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:29:38,706 INFO L231 Difference]: Finished difference. Result has 226 places, 247 transitions, 723 flow [2022-11-20 09:29:38,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=723, PETRI_PLACES=226, PETRI_TRANSITIONS=247} [2022-11-20 09:29:38,707 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -15 predicate places. [2022-11-20 09:29:38,707 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 247 transitions, 723 flow [2022-11-20 09:29:38,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2022-11-20 09:29:38,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:38,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:38,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:29:38,708 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-20 09:29:38,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:38,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1927343144, now seen corresponding path program 2 times [2022-11-20 09:29:38,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:38,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447112123] [2022-11-20 09:29:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:38,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:38,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:38,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:38,796 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:29:38,797 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-20 09:29:38,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-20 09:29:38,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-20 09:29:38,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-20 09:29:38,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-20 09:29:38,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-20 09:29:38,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-20 09:29:38,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-20 09:29:38,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-20 09:29:38,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-20 09:29:38,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-20 09:29:38,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-20 09:29:38,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-20 09:29:38,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-20 09:29:38,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-20 09:29:38,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-20 09:29:38,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-20 09:29:38,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-20 09:29:38,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-20 09:29:38,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-20 09:29:38,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-20 09:29:38,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-20 09:29:38,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-20 09:29:38,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-20 09:29:38,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-20 09:29:38,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-20 09:29:38,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-20 09:29:38,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-20 09:29:38,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-20 09:29:38,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-20 09:29:38,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-20 09:29:38,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:29:38,804 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:38,811 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:29:38,811 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:29:38,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:29:38 BasicIcfg [2022-11-20 09:29:38,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:29:38,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:29:38,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:29:38,890 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:29:38,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:32" (3/4) ... [2022-11-20 09:29:38,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:29:38,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:29:38,894 INFO L158 Benchmark]: Toolchain (without parser) took 9169.53ms. Allocated memory was 132.1MB in the beginning and 264.2MB in the end (delta: 132.1MB). Free memory was 91.8MB in the beginning and 79.0MB in the end (delta: 12.8MB). Peak memory consumption was 147.2MB. Max. memory is 16.1GB. [2022-11-20 09:29:38,894 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 132.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:38,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1319.06ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 91.8MB in the beginning and 93.4MB in the end (delta: -1.7MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-20 09:29:38,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.46ms. Allocated memory is still 159.4MB. Free memory was 93.4MB in the beginning and 90.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:29:38,895 INFO L158 Benchmark]: Boogie Preprocessor took 67.17ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:38,896 INFO L158 Benchmark]: RCFGBuilder took 914.05ms. Allocated memory is still 159.4MB. Free memory was 87.2MB in the beginning and 58.8MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:38,896 INFO L158 Benchmark]: TraceAbstraction took 6782.43ms. Allocated memory was 159.4MB in the beginning and 264.2MB in the end (delta: 104.9MB). Free memory was 57.8MB in the beginning and 79.0MB in the end (delta: -21.2MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-11-20 09:29:38,896 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 264.2MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:38,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 132.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1319.06ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 91.8MB in the beginning and 93.4MB in the end (delta: -1.7MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.46ms. Allocated memory is still 159.4MB. Free memory was 93.4MB in the beginning and 90.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.17ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 914.05ms. Allocated memory is still 159.4MB. Free memory was 87.2MB in the beginning and 58.8MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6782.43ms. Allocated memory was 159.4MB in the beginning and 264.2MB in the end (delta: 104.9MB). Free memory was 57.8MB in the beginning and 79.0MB in the end (delta: -21.2MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 264.2MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1830]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex={25:0}] [L1798] 0 long counter; VAL [counter=0, mutex={25:0}] [L1799] 0 time_t end_time; VAL [counter=0, end_time=0, mutex={25:0}] [L1836] 0 int status; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, end_time=0, mutex={25:0}] [L1837] 0 pthread_t counter_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=0, mutex={25:0}] [L1838] 0 pthread_t monitor_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}] [L1839] 0 end_time = time (((void *)0)) + 60 VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, end_time = time (((void *)0)) + 60=1150, monitor_thread_id={26:0}, mutex={25:0}, time (((void *)0))=0] [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=0, status=0] [L1841] COND FALSE 0 !(status != 0) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, status=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=0, status=0] [L1817] 2 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}] [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}] [L1801] 1 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0, time (((void *)0))=0] [L1819] 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0, time (((void *)0))=0] [L1819] COND TRUE 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, pthread_mutex_lock (&mutex)=0, pthread_mutex_trylock (&mutex)=16, status=16] [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, pthread_mutex_lock (&mutex)=0, status=16] [L1804] 1 status = pthread_mutex_lock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, pthread_mutex_lock (&mutex)=0, status=16, status=0] [L1805] COND FALSE 1 !(status != 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, status=16, status=0] [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1807] COND TRUE 1 spin < 10000000 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1154, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1154, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1808] and C: counter++ [1830] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 359 locations, 31 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 115 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred in iteration=9, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 702 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 09:29:39,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a331c37-78a0-425e-b723-30151dbc8250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE