./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R --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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- 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-38b53e6 [2022-11-25 18:22:22,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:22:22,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:22:22,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:22:22,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:22:22,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:22:22,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:22:22,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:22:22,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:22:22,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:22:22,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:22:22,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:22:22,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:22:22,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:22:22,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:22:22,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:22:22,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:22:22,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:22:22,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:22:22,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:22:22,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:22:22,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:22:22,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:22:22,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:22:22,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:22:22,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:22:22,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:22:22,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:22:22,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:22:22,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:22:22,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:22:22,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:22:22,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:22:22,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:22:22,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:22:22,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:22:22,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:22:22,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:22:22,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:22:22,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:22:22,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:22:22,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:22:22,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:22:22,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:22:22,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:22:22,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:22:22,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:22:22,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:22:22,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:22:22,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:22:22,236 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:22:22,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:22:22,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:22:22,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:22:22,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:22:22,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:22:22,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:22:22,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:22:22,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:22:22,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:22:22,239 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:22:22,239 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:22:22,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:22:22,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:22:22,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:22:22,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:22:22,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:22:22,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:22:22,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:22:22,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:22:22,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:22:22,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:22:22,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:22:22,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:22:22,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:22:22,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:22:22,244 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:22:22,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:22:22,244 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2022-11-25 18:22:22,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:22:22,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:22:22,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:22:22,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:22:22,576 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:22:22,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-25 18:22:25,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:22:26,177 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:22:26,178 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-25 18:22:26,207 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/data/918d1ae6a/3825bb2591174e73a669627ea6e14d49/FLAGf21c2588b [2022-11-25 18:22:26,228 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/data/918d1ae6a/3825bb2591174e73a669627ea6e14d49 [2022-11-25 18:22:26,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:22:26,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:22:26,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:22:26,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:22:26,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:22:26,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:22:26" (1/1) ... [2022-11-25 18:22:26,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766cd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:26, skipping insertion in model container [2022-11-25 18:22:26,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:22:26" (1/1) ... [2022-11-25 18:22:26,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:22:26,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:22:27,329 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:22:27,341 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,344 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,353 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,354 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,355 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-25 18:22:27,360 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:22:27,362 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-25 18:22:27,364 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,366 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,370 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,374 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,378 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:22:27,388 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,390 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,391 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,393 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,394 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,396 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,397 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,398 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:22:27,419 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:22:27,504 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:22:27,505 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,506 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,508 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,508 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,509 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-25 18:22:27,511 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:22:27,511 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-25 18:22:27,512 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,513 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,514 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,515 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,517 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:22:27,519 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,520 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,522 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,522 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,524 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,525 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,527 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:22:27,528 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-25 18:22:27,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:22:27,733 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:22:27,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27 WrapperNode [2022-11-25 18:22:27,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:22:27,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:22:27,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:22:27,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:22:27,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,863 INFO L138 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2022-11-25 18:22:27,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:22:27,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:22:27,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:22:27,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:22:27,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:22:27,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:22:27,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:22:27,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:22:27,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (1/1) ... [2022-11-25 18:22:27,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:22:27,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:22:28,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:22:28,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:22:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-25 18:22:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-25 18:22:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-25 18:22:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-25 18:22:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-25 18:22:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-25 18:22:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:22:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:22:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:22:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:22:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:22:28,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:22:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:22:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-25 18:22:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 18:22:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:22:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:22:28,066 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:22:28,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:22:28,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:22:28,843 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:22:28,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:22:28,870 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-25 18:22:28,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:22:28 BoogieIcfgContainer [2022-11-25 18:22:28,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:22:28,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:22:28,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:22:28,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:22:28,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:22:26" (1/3) ... [2022-11-25 18:22:28,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547d6ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:22:28, skipping insertion in model container [2022-11-25 18:22:28,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:27" (2/3) ... [2022-11-25 18:22:28,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547d6ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:22:28, skipping insertion in model container [2022-11-25 18:22:28,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:22:28" (3/3) ... [2022-11-25 18:22:28,885 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2022-11-25 18:22:28,895 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:22:28,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:22:28,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 18:22:28,907 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:22:28,985 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:22:29,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 276 transitions, 568 flow [2022-11-25 18:22:29,190 INFO L130 PetriNetUnfolder]: 32/274 cut-off events. [2022-11-25 18:22:29,190 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:22:29,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 32/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 616 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 165. Up to 5 conditions per place. [2022-11-25 18:22:29,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 276 transitions, 568 flow [2022-11-25 18:22:29,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 257 transitions, 526 flow [2022-11-25 18:22:29,217 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:22:29,239 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 257 transitions, 526 flow [2022-11-25 18:22:29,247 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 257 transitions, 526 flow [2022-11-25 18:22:29,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 235 places, 257 transitions, 526 flow [2022-11-25 18:22:29,318 INFO L130 PetriNetUnfolder]: 29/257 cut-off events. [2022-11-25 18:22:29,319 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:22:29,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 257 events. 29/257 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 581 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 165. Up to 5 conditions per place. [2022-11-25 18:22:29,334 INFO L119 LiptonReduction]: Number of co-enabled transitions 17344 [2022-11-25 18:22:43,378 INFO L134 LiptonReduction]: Checked pairs total: 25575 [2022-11-25 18:22:43,379 INFO L136 LiptonReduction]: Total number of compositions: 280 [2022-11-25 18:22:43,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:22:43,424 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;@79253b94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:22:43,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-25 18:22:43,427 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:22:43,427 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:22:43,427 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:43,428 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:22:43,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:43,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1115, now seen corresponding path program 1 times [2022-11-25 18:22:43,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:43,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612983138] [2022-11-25 18:22:43,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:43,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:43,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:43,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612983138] [2022-11-25 18:22:43,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612983138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:43,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:43,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:22:43,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007733984] [2022-11-25 18:22:43,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:43,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:22:43,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:22:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:22:43,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2022-11-25 18:22:43,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 67 transitions, 146 flow. Second operand has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 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) [2022-11-25 18:22:43,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:43,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2022-11-25 18:22:43,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:43,996 INFO L130 PetriNetUnfolder]: 568/952 cut-off events. [2022-11-25 18:22:43,997 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-25 18:22:44,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1844 conditions, 952 events. 568/952 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4207 event pairs, 414 based on Foata normal form. 135/747 useless extension candidates. Maximal degree in co-relation 1704. Up to 865 conditions per place. [2022-11-25 18:22:44,006 INFO L137 encePairwiseOnDemand]: 536/556 looper letters, 29 selfloop transitions, 0 changer transitions 1/33 dead transitions. [2022-11-25 18:22:44,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 138 flow [2022-11-25 18:22:44,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:22:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:22:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 540 transitions. [2022-11-25 18:22:44,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4856115107913669 [2022-11-25 18:22:44,031 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 540 transitions. [2022-11-25 18:22:44,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 540 transitions. [2022-11-25 18:22:44,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:44,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 540 transitions. [2022-11-25 18:22:44,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 270.0) internal successors, (540), 2 states have internal predecessors, (540), 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) [2022-11-25 18:22:44,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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) [2022-11-25 18:22:44,053 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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) [2022-11-25 18:22:44,055 INFO L175 Difference]: Start difference. First operand has 53 places, 67 transitions, 146 flow. Second operand 2 states and 540 transitions. [2022-11-25 18:22:44,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 138 flow [2022-11-25 18:22:44,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 18:22:44,061 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 67 flow [2022-11-25 18:22:44,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=67, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2022-11-25 18:22:44,067 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -20 predicate places. [2022-11-25 18:22:44,068 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 67 flow [2022-11-25 18:22:44,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 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) [2022-11-25 18:22:44,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:44,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 18:22:44,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:22:44,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:44,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1635517403, now seen corresponding path program 1 times [2022-11-25 18:22:44,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:44,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460132241] [2022-11-25 18:22:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:44,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:44,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:44,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460132241] [2022-11-25 18:22:44,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460132241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:44,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:44,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:22:44,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327316512] [2022-11-25 18:22:44,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:44,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:22:44,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:44,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:22:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:22:44,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 556 [2022-11-25 18:22:44,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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) [2022-11-25 18:22:44,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:44,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 556 [2022-11-25 18:22:44,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:44,736 INFO L130 PetriNetUnfolder]: 456/739 cut-off events. [2022-11-25 18:22:44,736 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:22:44,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1452 conditions, 739 events. 456/739 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3019 event pairs, 138 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 1449. Up to 382 conditions per place. [2022-11-25 18:22:44,741 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 43 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2022-11-25 18:22:44,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 47 transitions, 185 flow [2022-11-25 18:22:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:22:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:22:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-11-25 18:22:44,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45863309352517984 [2022-11-25 18:22:44,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-11-25 18:22:44,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-11-25 18:22:44,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:44,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-11-25 18:22:44,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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) [2022-11-25 18:22:44,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:44,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:44,755 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 67 flow. Second operand 3 states and 765 transitions. [2022-11-25 18:22:44,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 47 transitions, 185 flow [2022-11-25 18:22:44,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 47 transitions, 185 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:22:44,757 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 67 flow [2022-11-25 18:22:44,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2022-11-25 18:22:44,758 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -20 predicate places. [2022-11-25 18:22:44,758 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 67 flow [2022-11-25 18:22:44,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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) [2022-11-25 18:22:44,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:44,759 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:44,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:22:44,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:44,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:44,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2115168512, now seen corresponding path program 1 times [2022-11-25 18:22:44,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:44,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308973255] [2022-11-25 18:22:44,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:44,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:44,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:44,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308973255] [2022-11-25 18:22:44,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308973255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:44,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:44,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:22:44,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761165094] [2022-11-25 18:22:44,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:44,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:22:44,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:44,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:22:44,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:22:44,852 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 556 [2022-11-25 18:22:44,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 67 flow. Second operand has 3 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) [2022-11-25 18:22:44,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:44,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 556 [2022-11-25 18:22:44,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:45,071 INFO L130 PetriNetUnfolder]: 548/898 cut-off events. [2022-11-25 18:22:45,071 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-11-25 18:22:45,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1813 conditions, 898 events. 548/898 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3548 event pairs, 338 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 1809. Up to 760 conditions per place. [2022-11-25 18:22:45,076 INFO L137 encePairwiseOnDemand]: 552/556 looper letters, 39 selfloop transitions, 3 changer transitions 2/46 dead transitions. [2022-11-25 18:22:45,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 46 transitions, 188 flow [2022-11-25 18:22:45,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:22:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:22:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2022-11-25 18:22:45,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4550359712230216 [2022-11-25 18:22:45,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 759 transitions. [2022-11-25 18:22:45,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 759 transitions. [2022-11-25 18:22:45,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:45,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 759 transitions. [2022-11-25 18:22:45,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2022-11-25 18:22:45,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:45,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:45,088 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 67 flow. Second operand 3 states and 759 transitions. [2022-11-25 18:22:45,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 46 transitions, 188 flow [2022-11-25 18:22:45,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:22:45,090 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 83 flow [2022-11-25 18:22:45,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2022-11-25 18:22:45,091 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -18 predicate places. [2022-11-25 18:22:45,091 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 83 flow [2022-11-25 18:22:45,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-25 18:22:45,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:45,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:45,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:22:45,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:45,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1670823591, now seen corresponding path program 1 times [2022-11-25 18:22:45,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:45,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369103128] [2022-11-25 18:22:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:45,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:45,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:45,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369103128] [2022-11-25 18:22:45,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369103128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:45,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:45,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:22:45,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597880929] [2022-11-25 18:22:45,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:45,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:22:45,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:45,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:22:45,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:22:45,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 556 [2022-11-25 18:22:45,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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) [2022-11-25 18:22:45,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:45,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 556 [2022-11-25 18:22:45,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:45,447 INFO L130 PetriNetUnfolder]: 965/1480 cut-off events. [2022-11-25 18:22:45,447 INFO L131 PetriNetUnfolder]: For 135/155 co-relation queries the response was YES. [2022-11-25 18:22:45,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3347 conditions, 1480 events. 965/1480 cut-off events. For 135/155 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5872 event pairs, 300 based on Foata normal form. 0/1004 useless extension candidates. Maximal degree in co-relation 3342. Up to 803 conditions per place. [2022-11-25 18:22:45,456 INFO L137 encePairwiseOnDemand]: 551/556 looper letters, 51 selfloop transitions, 5 changer transitions 1/58 dead transitions. [2022-11-25 18:22:45,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 58 transitions, 260 flow [2022-11-25 18:22:45,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:22:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:22:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2022-11-25 18:22:45,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46103117505995206 [2022-11-25 18:22:45,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 769 transitions. [2022-11-25 18:22:45,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 769 transitions. [2022-11-25 18:22:45,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:45,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 769 transitions. [2022-11-25 18:22:45,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:22:45,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:45,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:45,468 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 83 flow. Second operand 3 states and 769 transitions. [2022-11-25 18:22:45,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 58 transitions, 260 flow [2022-11-25 18:22:45,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 58 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:22:45,474 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 122 flow [2022-11-25 18:22:45,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2022-11-25 18:22:45,476 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -16 predicate places. [2022-11-25 18:22:45,476 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 122 flow [2022-11-25 18:22:45,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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) [2022-11-25 18:22:45,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:45,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:45,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:22:45,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:45,479 INFO L85 PathProgramCache]: Analyzing trace with hash -849127335, now seen corresponding path program 1 times [2022-11-25 18:22:45,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:45,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018938090] [2022-11-25 18:22:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:45,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:45,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:45,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018938090] [2022-11-25 18:22:45,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018938090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:45,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:45,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:22:45,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980721197] [2022-11-25 18:22:45,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:45,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:22:45,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:45,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:22:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:22:45,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 556 [2022-11-25 18:22:45,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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) [2022-11-25 18:22:45,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:45,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 556 [2022-11-25 18:22:45,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:46,064 INFO L130 PetriNetUnfolder]: 858/1335 cut-off events. [2022-11-25 18:22:46,064 INFO L131 PetriNetUnfolder]: For 456/484 co-relation queries the response was YES. [2022-11-25 18:22:46,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3242 conditions, 1335 events. 858/1335 cut-off events. For 456/484 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5307 event pairs, 521 based on Foata normal form. 0/988 useless extension candidates. Maximal degree in co-relation 3236. Up to 1236 conditions per place. [2022-11-25 18:22:46,071 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 30 selfloop transitions, 1 changer transitions 9/44 dead transitions. [2022-11-25 18:22:46,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 228 flow [2022-11-25 18:22:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:22:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:22:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2022-11-25 18:22:46,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45083932853717024 [2022-11-25 18:22:46,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2022-11-25 18:22:46,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2022-11-25 18:22:46,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:46,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2022-11-25 18:22:46,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 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) [2022-11-25 18:22:46,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:46,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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) [2022-11-25 18:22:46,085 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 122 flow. Second operand 3 states and 752 transitions. [2022-11-25 18:22:46,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 228 flow [2022-11-25 18:22:46,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:22:46,093 INFO L231 Difference]: Finished difference. Result has 36 places, 35 transitions, 112 flow [2022-11-25 18:22:46,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=36, PETRI_TRANSITIONS=35} [2022-11-25 18:22:46,097 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -17 predicate places. [2022-11-25 18:22:46,097 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 35 transitions, 112 flow [2022-11-25 18:22:46,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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) [2022-11-25 18:22:46,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:46,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:46,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:22:46,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:46,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:46,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2014181865, now seen corresponding path program 1 times [2022-11-25 18:22:46,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:46,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089699636] [2022-11-25 18:22:46,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:46,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:46,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:46,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:46,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089699636] [2022-11-25 18:22:46,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089699636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:46,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:46,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:22:46,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234441385] [2022-11-25 18:22:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:46,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:22:46,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:46,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:22:46,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:22:46,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 556 [2022-11-25 18:22:46,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 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) [2022-11-25 18:22:46,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:46,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 556 [2022-11-25 18:22:46,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:46,803 INFO L130 PetriNetUnfolder]: 1772/2661 cut-off events. [2022-11-25 18:22:46,804 INFO L131 PetriNetUnfolder]: For 651/695 co-relation queries the response was YES. [2022-11-25 18:22:46,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6257 conditions, 2661 events. 1772/2661 cut-off events. For 651/695 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11722 event pairs, 372 based on Foata normal form. 50/1946 useless extension candidates. Maximal degree in co-relation 6251. Up to 1099 conditions per place. [2022-11-25 18:22:46,816 INFO L137 encePairwiseOnDemand]: 549/556 looper letters, 67 selfloop transitions, 9 changer transitions 10/90 dead transitions. [2022-11-25 18:22:46,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 90 transitions, 447 flow [2022-11-25 18:22:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:22:46,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:22:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1241 transitions. [2022-11-25 18:22:46,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4464028776978417 [2022-11-25 18:22:46,820 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1241 transitions. [2022-11-25 18:22:46,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1241 transitions. [2022-11-25 18:22:46,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:46,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1241 transitions. [2022-11-25 18:22:46,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2022-11-25 18:22:46,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 556.0) internal successors, (3336), 6 states have internal predecessors, (3336), 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) [2022-11-25 18:22:46,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 556.0) internal successors, (3336), 6 states have internal predecessors, (3336), 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) [2022-11-25 18:22:46,832 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 112 flow. Second operand 5 states and 1241 transitions. [2022-11-25 18:22:46,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 90 transitions, 447 flow [2022-11-25 18:22:46,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 90 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:22:46,835 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 191 flow [2022-11-25 18:22:46,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2022-11-25 18:22:46,838 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2022-11-25 18:22:46,838 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 191 flow [2022-11-25 18:22:46,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 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) [2022-11-25 18:22:46,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:46,839 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:46,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:22:46,840 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash 966011817, now seen corresponding path program 2 times [2022-11-25 18:22:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:46,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819845604] [2022-11-25 18:22:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:46,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:47,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:47,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819845604] [2022-11-25 18:22:47,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819845604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:47,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:47,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:22:47,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99721755] [2022-11-25 18:22:47,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:47,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:22:47,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:47,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:22:47,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:22:47,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 556 [2022-11-25 18:22:47,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 191 flow. Second operand has 4 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 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) [2022-11-25 18:22:47,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:47,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 556 [2022-11-25 18:22:47,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:47,581 INFO L130 PetriNetUnfolder]: 2095/3211 cut-off events. [2022-11-25 18:22:47,581 INFO L131 PetriNetUnfolder]: For 2556/2604 co-relation queries the response was YES. [2022-11-25 18:22:47,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9608 conditions, 3211 events. 2095/3211 cut-off events. For 2556/2604 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 14885 event pairs, 377 based on Foata normal form. 46/2847 useless extension candidates. Maximal degree in co-relation 9599. Up to 1301 conditions per place. [2022-11-25 18:22:47,598 INFO L137 encePairwiseOnDemand]: 547/556 looper letters, 65 selfloop transitions, 16 changer transitions 8/93 dead transitions. [2022-11-25 18:22:47,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 93 transitions, 564 flow [2022-11-25 18:22:47,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:22:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:22:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1001 transitions. [2022-11-25 18:22:47,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45008992805755393 [2022-11-25 18:22:47,601 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1001 transitions. [2022-11-25 18:22:47,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1001 transitions. [2022-11-25 18:22:47,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:47,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1001 transitions. [2022-11-25 18:22:47,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 250.25) internal successors, (1001), 4 states have internal predecessors, (1001), 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) [2022-11-25 18:22:47,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 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) [2022-11-25 18:22:47,609 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 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) [2022-11-25 18:22:47,609 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 191 flow. Second operand 4 states and 1001 transitions. [2022-11-25 18:22:47,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 93 transitions, 564 flow [2022-11-25 18:22:47,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 93 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:22:47,614 INFO L231 Difference]: Finished difference. Result has 49 places, 53 transitions, 326 flow [2022-11-25 18:22:47,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=49, PETRI_TRANSITIONS=53} [2022-11-25 18:22:47,615 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -4 predicate places. [2022-11-25 18:22:47,615 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 53 transitions, 326 flow [2022-11-25 18:22:47,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 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) [2022-11-25 18:22:47,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:47,616 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:47,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:22:47,616 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:22:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash 918038697, now seen corresponding path program 3 times [2022-11-25 18:22:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:47,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435016805] [2022-11-25 18:22:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:47,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:47,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435016805] [2022-11-25 18:22:47,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435016805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:47,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:47,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:22:47,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459460951] [2022-11-25 18:22:47,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:47,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:22:47,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:47,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:22:47,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:22:47,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 556 [2022-11-25 18:22:47,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 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) [2022-11-25 18:22:47,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:47,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 556 [2022-11-25 18:22:47,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:48,180 INFO L130 PetriNetUnfolder]: 1322/2036 cut-off events. [2022-11-25 18:22:48,180 INFO L131 PetriNetUnfolder]: For 2532/2532 co-relation queries the response was YES. [2022-11-25 18:22:48,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6661 conditions, 2036 events. 1322/2036 cut-off events. For 2532/2532 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 8822 event pairs, 367 based on Foata normal form. 4/1769 useless extension candidates. Maximal degree in co-relation 6649. Up to 688 conditions per place. [2022-11-25 18:22:48,188 INFO L137 encePairwiseOnDemand]: 549/556 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2022-11-25 18:22:48,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 71 transitions, 480 flow [2022-11-25 18:22:48,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:22:48,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:22:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 990 transitions. [2022-11-25 18:22:48,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44514388489208634 [2022-11-25 18:22:48,192 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 990 transitions. [2022-11-25 18:22:48,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 990 transitions. [2022-11-25 18:22:48,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:48,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 990 transitions. [2022-11-25 18:22:48,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 247.5) internal successors, (990), 4 states have internal predecessors, (990), 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) [2022-11-25 18:22:48,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 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) [2022-11-25 18:22:48,200 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 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) [2022-11-25 18:22:48,201 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 326 flow. Second operand 4 states and 990 transitions. [2022-11-25 18:22:48,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 71 transitions, 480 flow [2022-11-25 18:22:48,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 71 transitions, 435 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-11-25 18:22:48,213 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2022-11-25 18:22:48,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2022-11-25 18:22:48,216 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -7 predicate places. [2022-11-25 18:22:48,217 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2022-11-25 18:22:48,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 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) [2022-11-25 18:22:48,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-11-25 18:22:48,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-11-25 18:22:48,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-11-25 18:22:48,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-11-25 18:22:48,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-11-25 18:22:48,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-11-25 18:22:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-11-25 18:22:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-11-25 18:22:48,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-11-25 18:22:48,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-11-25 18:22:48,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-11-25 18:22:48,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-11-25 18:22:48,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-11-25 18:22:48,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-11-25 18:22:48,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-11-25 18:22:48,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-11-25 18:22:48,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2022-11-25 18:22:48,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2022-11-25 18:22:48,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-11-25 18:22:48,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-11-25 18:22:48,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-11-25 18:22:48,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-11-25 18:22:48,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-11-25 18:22:48,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-11-25 18:22:48,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-11-25 18:22:48,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-11-25 18:22:48,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-11-25 18:22:48,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:22:48,237 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2022-11-25 18:22:48,248 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:22:48,248 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:22:48,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:22:48 BasicIcfg [2022-11-25 18:22:48,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:22:48,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:22:48,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:22:48,253 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:22:48,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:22:28" (3/4) ... [2022-11-25 18:22:48,259 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:22:48,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2022-11-25 18:22:48,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2022-11-25 18:22:48,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-25 18:22:48,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-25 18:22:48,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 18:22:48,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:22:48,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:22:48,323 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:22:48,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:22:48,324 INFO L158 Benchmark]: Toolchain (without parser) took 22091.07ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 159.0MB in the beginning and 230.1MB in the end (delta: -71.1MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,324 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:22:48,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1499.98ms. Allocated memory is still 209.7MB. Free memory was 158.4MB in the beginning and 167.3MB in the end (delta: -9.0MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.95ms. Allocated memory is still 209.7MB. Free memory was 167.3MB in the beginning and 163.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,325 INFO L158 Benchmark]: Boogie Preprocessor took 103.18ms. Allocated memory is still 209.7MB. Free memory was 163.4MB in the beginning and 160.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,325 INFO L158 Benchmark]: RCFGBuilder took 904.30ms. Allocated memory is still 209.7MB. Free memory was 160.1MB in the beginning and 132.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,326 INFO L158 Benchmark]: TraceAbstraction took 19376.85ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 132.0MB in the beginning and 233.3MB in the end (delta: -101.3MB). Peak memory consumption was 142.7MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,326 INFO L158 Benchmark]: Witness Printer took 70.02ms. Allocated memory is still 302.0MB. Free memory was 233.3MB in the beginning and 230.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:22:48,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1499.98ms. Allocated memory is still 209.7MB. Free memory was 158.4MB in the beginning and 167.3MB in the end (delta: -9.0MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.95ms. Allocated memory is still 209.7MB. Free memory was 167.3MB in the beginning and 163.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.18ms. Allocated memory is still 209.7MB. Free memory was 163.4MB in the beginning and 160.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 904.30ms. Allocated memory is still 209.7MB. Free memory was 160.1MB in the beginning and 132.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19376.85ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 132.0MB in the beginning and 233.3MB in the end (delta: -101.3MB). Peak memory consumption was 142.7MB. Max. memory is 16.1GB. * Witness Printer took 70.02ms. Allocated memory is still 302.0MB. Free memory was 233.3MB in the beginning and 230.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 235 PlacesBefore, 53 PlacesAfterwards, 257 TransitionsBefore, 67 TransitionsAfterwards, 17344 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 163 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 38 ConcurrentYvCompositions, 8 ChoiceCompositions, 280 TotalNumberOfCompositions, 25575 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19606, independent: 19402, independent conditional: 0, independent unconditional: 19402, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13218, independent: 13147, independent conditional: 0, independent unconditional: 13147, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13218, independent: 12952, independent conditional: 0, independent unconditional: 12952, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 266, independent: 195, independent conditional: 0, independent unconditional: 195, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 357, independent: 202, independent conditional: 0, independent unconditional: 202, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19606, independent: 6255, independent conditional: 0, independent unconditional: 6255, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 13218, unknown conditional: 0, unknown unconditional: 13218] , Statistics on independence cache: Total cache size (in pairs): 566, Positive cache size: 552, Positive conditional cache size: 0, Positive unconditional cache size: 552, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1850]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1853]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 350 locations, 27 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: 19.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 833 IncrementalHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 23 mSDtfsCounter, 833 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=7, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 18:22:48,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff67ae2-1215-4906-a18e-1bf59df6be4a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE