./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7b1b4de6077c19ce6e7b3206b7aec935b2c49ded10f81f01daddf9a689038c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:08:16,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:08:16,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:08:16,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:08:16,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:08:16,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:08:16,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:08:16,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:08:17,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:08:17,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:08:17,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:08:17,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:08:17,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:08:17,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:08:17,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:08:17,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:08:17,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:08:17,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:08:17,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:08:17,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:08:17,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:08:17,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:08:17,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:08:17,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:08:17,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:08:17,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:08:17,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:08:17,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:08:17,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:08:17,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:08:17,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:08:17,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:08:17,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:08:17,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:08:17,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:08:17,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:08:17,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:08:17,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:08:17,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:08:17,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:08:17,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:08:17,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:08:17,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:08:17,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:08:17,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:08:17,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:08:17,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:08:17,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:08:17,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:08:17,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:08:17,101 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:08:17,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:08:17,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:08:17,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:08:17,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:08:17,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:08:17,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:08:17,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:08:17,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:08:17,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:08:17,105 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:08:17,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:08:17,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:08:17,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:08:17,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:08:17,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:08:17,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:08:17,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:08:17,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:08:17,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:08:17,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:08:17,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:08:17,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:08:17,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:08:17,109 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:08:17,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:08:17,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:08:17,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7b1b4de6077c19ce6e7b3206b7aec935b2c49ded10f81f01daddf9a689038c1 [2022-11-20 11:08:17,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:08:17,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:08:17,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:08:17,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:08:17,459 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:08:17,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i [2022-11-20 11:08:20,556 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:08:20,795 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:08:20,796 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i [2022-11-20 11:08:20,821 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/data/f1bebe681/322113b7e7fe479990551fa189004919/FLAG396fefdb6 [2022-11-20 11:08:20,840 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/data/f1bebe681/322113b7e7fe479990551fa189004919 [2022-11-20 11:08:20,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:08:20,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:08:20,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:08:20,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:08:20,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:08:20,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:08:20" (1/1) ... [2022-11-20 11:08:20,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65da2238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:20, skipping insertion in model container [2022-11-20 11:08:20,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:08:20" (1/1) ... [2022-11-20 11:08:20,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:08:20,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:08:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[30307,30320] [2022-11-20 11:08:21,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[30489,30502] [2022-11-20 11:08:21,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[30660,30673] [2022-11-20 11:08:21,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[31038,31051] [2022-11-20 11:08:21,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[31460,31473] [2022-11-20 11:08:21,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:08:21,259 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:08:21,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[30307,30320] [2022-11-20 11:08:21,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[30489,30502] [2022-11-20 11:08:21,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[30660,30673] [2022-11-20 11:08:21,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[31038,31051] [2022-11-20 11:08:21,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/sv-benchmarks/c/pthread-ext/41_FreeBSD_abd_kbd_sliced.i[31460,31473] [2022-11-20 11:08:21,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:08:21,340 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:08:21,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21 WrapperNode [2022-11-20 11:08:21,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:08:21,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:08:21,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:08:21,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:08:21,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,396 INFO L138 Inliner]: procedures = 174, calls = 30, calls flagged for inlining = 22, calls inlined = 33, statements flattened = 303 [2022-11-20 11:08:21,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:08:21,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:08:21,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:08:21,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:08:21,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:08:21,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:08:21,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:08:21,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:08:21,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (1/1) ... [2022-11-20 11:08:21,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:08:21,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:21,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:08:21,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5485be4-017a-4a90-8b8a-8570ed057bff/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:08:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 11:08:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 11:08:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:08:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:08:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:08:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:08:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:08:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:08:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:08:21,581 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:08:21,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:08:21,708 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:08:22,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:08:22,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:08:22,632 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:08:22,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:22 BoogieIcfgContainer [2022-11-20 11:08:22,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:08:22,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:08:22,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:08:22,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:08:22,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:08:20" (1/3) ... [2022-11-20 11:08:22,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebe91f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:08:22, skipping insertion in model container [2022-11-20 11:08:22,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:21" (2/3) ... [2022-11-20 11:08:22,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebe91f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:08:22, skipping insertion in model container [2022-11-20 11:08:22,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:22" (3/3) ... [2022-11-20 11:08:22,644 INFO L112 eAbstractionObserver]: Analyzing ICFG 41_FreeBSD_abd_kbd_sliced.i [2022-11-20 11:08:22,653 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:08:22,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:08:22,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2022-11-20 11:08:22,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:08:22,751 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:08:22,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 205 transitions, 415 flow [2022-11-20 11:08:22,864 INFO L130 PetriNetUnfolder]: 20/216 cut-off events. [2022-11-20 11:08:22,864 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:08:22,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 216 events. 20/216 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 666 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 187. Up to 7 conditions per place. [2022-11-20 11:08:22,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 205 transitions, 415 flow [2022-11-20 11:08:22,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 205 transitions, 415 flow [2022-11-20 11:08:22,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:08:22,896 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;@5b7e83b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:08:22,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-20 11:08:22,913 INFO L130 PetriNetUnfolder]: 3/51 cut-off events. [2022-11-20 11:08:22,913 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:08:22,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:22,914 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:22,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2022-11-20 11:08:22,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:22,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1216745730, now seen corresponding path program 1 times [2022-11-20 11:08:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:22,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628526627] [2022-11-20 11:08:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:22,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:08:23,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:08:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:08:23,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:08:23,149 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:08:23,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (80 of 81 remaining) [2022-11-20 11:08:23,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (79 of 81 remaining) [2022-11-20 11:08:23,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (78 of 81 remaining) [2022-11-20 11:08:23,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (77 of 81 remaining) [2022-11-20 11:08:23,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (76 of 81 remaining) [2022-11-20 11:08:23,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 81 remaining) [2022-11-20 11:08:23,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (74 of 81 remaining) [2022-11-20 11:08:23,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 81 remaining) [2022-11-20 11:08:23,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 81 remaining) [2022-11-20 11:08:23,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (71 of 81 remaining) [2022-11-20 11:08:23,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (70 of 81 remaining) [2022-11-20 11:08:23,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (69 of 81 remaining) [2022-11-20 11:08:23,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (68 of 81 remaining) [2022-11-20 11:08:23,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (67 of 81 remaining) [2022-11-20 11:08:23,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (66 of 81 remaining) [2022-11-20 11:08:23,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONDATA_RACE (65 of 81 remaining) [2022-11-20 11:08:23,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONDATA_RACE (64 of 81 remaining) [2022-11-20 11:08:23,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (63 of 81 remaining) [2022-11-20 11:08:23,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (62 of 81 remaining) [2022-11-20 11:08:23,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 81 remaining) [2022-11-20 11:08:23,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONDATA_RACE (60 of 81 remaining) [2022-11-20 11:08:23,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 81 remaining) [2022-11-20 11:08:23,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONDATA_RACE (58 of 81 remaining) [2022-11-20 11:08:23,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (57 of 81 remaining) [2022-11-20 11:08:23,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (56 of 81 remaining) [2022-11-20 11:08:23,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (55 of 81 remaining) [2022-11-20 11:08:23,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONDATA_RACE (54 of 81 remaining) [2022-11-20 11:08:23,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONDATA_RACE (53 of 81 remaining) [2022-11-20 11:08:23,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (52 of 81 remaining) [2022-11-20 11:08:23,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (51 of 81 remaining) [2022-11-20 11:08:23,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (50 of 81 remaining) [2022-11-20 11:08:23,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (49 of 81 remaining) [2022-11-20 11:08:23,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (48 of 81 remaining) [2022-11-20 11:08:23,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONDATA_RACE (47 of 81 remaining) [2022-11-20 11:08:23,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONDATA_RACE (46 of 81 remaining) [2022-11-20 11:08:23,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (45 of 81 remaining) [2022-11-20 11:08:23,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (44 of 81 remaining) [2022-11-20 11:08:23,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (43 of 81 remaining) [2022-11-20 11:08:23,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (42 of 81 remaining) [2022-11-20 11:08:23,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (41 of 81 remaining) [2022-11-20 11:08:23,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (40 of 81 remaining) [2022-11-20 11:08:23,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 81 remaining) [2022-11-20 11:08:23,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 81 remaining) [2022-11-20 11:08:23,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 81 remaining) [2022-11-20 11:08:23,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 81 remaining) [2022-11-20 11:08:23,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 81 remaining) [2022-11-20 11:08:23,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 81 remaining) [2022-11-20 11:08:23,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 81 remaining) [2022-11-20 11:08:23,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 81 remaining) [2022-11-20 11:08:23,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (31 of 81 remaining) [2022-11-20 11:08:23,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (30 of 81 remaining) [2022-11-20 11:08:23,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (29 of 81 remaining) [2022-11-20 11:08:23,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (28 of 81 remaining) [2022-11-20 11:08:23,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (27 of 81 remaining) [2022-11-20 11:08:23,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 81 remaining) [2022-11-20 11:08:23,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONDATA_RACE (25 of 81 remaining) [2022-11-20 11:08:23,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONDATA_RACE (24 of 81 remaining) [2022-11-20 11:08:23,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (23 of 81 remaining) [2022-11-20 11:08:23,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 81 remaining) [2022-11-20 11:08:23,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 81 remaining) [2022-11-20 11:08:23,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONDATA_RACE (20 of 81 remaining) [2022-11-20 11:08:23,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 81 remaining) [2022-11-20 11:08:23,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONDATA_RACE (18 of 81 remaining) [2022-11-20 11:08:23,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (17 of 81 remaining) [2022-11-20 11:08:23,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (16 of 81 remaining) [2022-11-20 11:08:23,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (15 of 81 remaining) [2022-11-20 11:08:23,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONDATA_RACE (14 of 81 remaining) [2022-11-20 11:08:23,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONDATA_RACE (13 of 81 remaining) [2022-11-20 11:08:23,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (12 of 81 remaining) [2022-11-20 11:08:23,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (11 of 81 remaining) [2022-11-20 11:08:23,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (10 of 81 remaining) [2022-11-20 11:08:23,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (9 of 81 remaining) [2022-11-20 11:08:23,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (8 of 81 remaining) [2022-11-20 11:08:23,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONDATA_RACE (7 of 81 remaining) [2022-11-20 11:08:23,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONDATA_RACE (6 of 81 remaining) [2022-11-20 11:08:23,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (5 of 81 remaining) [2022-11-20 11:08:23,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (4 of 81 remaining) [2022-11-20 11:08:23,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (3 of 81 remaining) [2022-11-20 11:08:23,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (2 of 81 remaining) [2022-11-20 11:08:23,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (1 of 81 remaining) [2022-11-20 11:08:23,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (0 of 81 remaining) [2022-11-20 11:08:23,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:08:23,188 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:08:23,192 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:08:23,192 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 11:08:23,288 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:08:23,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 348 places, 380 transitions, 772 flow [2022-11-20 11:08:23,453 INFO L130 PetriNetUnfolder]: 39/404 cut-off events. [2022-11-20 11:08:23,454 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:08:23,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 404 events. 39/404 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1875 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 361. Up to 7 conditions per place. [2022-11-20 11:08:23,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 348 places, 380 transitions, 772 flow [2022-11-20 11:08:23,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 348 places, 380 transitions, 772 flow [2022-11-20 11:08:23,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:08:23,484 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;@5b7e83b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:08:23,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2022-11-20 11:08:23,492 INFO L130 PetriNetUnfolder]: 4/63 cut-off events. [2022-11-20 11:08:23,492 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:08:23,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:23,492 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:23,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2022-11-20 11:08:23,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:23,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1127454745, now seen corresponding path program 1 times [2022-11-20 11:08:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:23,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705013385] [2022-11-20 11:08:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:23,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:23,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705013385] [2022-11-20 11:08:23,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705013385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:23,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:23,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:08:23,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412534798] [2022-11-20 11:08:23,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:23,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:08:23,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:08:23,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:08:23,614 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 380 [2022-11-20 11:08:23,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 380 transitions, 772 flow. Second operand has 2 states, 2 states have (on average 269.0) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:23,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:23,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 380 [2022-11-20 11:08:23,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:24,148 INFO L130 PetriNetUnfolder]: 294/2074 cut-off events. [2022-11-20 11:08:24,149 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-20 11:08:24,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 2074 events. 294/2074 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 19238 event pairs, 143 based on Foata normal form. 390/2075 useless extension candidates. Maximal degree in co-relation 311. Up to 370 conditions per place. [2022-11-20 11:08:24,175 INFO L137 encePairwiseOnDemand]: 306/380 looper letters, 28 selfloop transitions, 0 changer transitions 0/287 dead transitions. [2022-11-20 11:08:24,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 287 transitions, 642 flow [2022-11-20 11:08:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:08:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 11:08:24,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 638 transitions. [2022-11-20 11:08:24,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8394736842105263 [2022-11-20 11:08:24,199 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 638 transitions. [2022-11-20 11:08:24,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 638 transitions. [2022-11-20 11:08:24,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:24,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 638 transitions. [2022-11-20 11:08:24,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 319.0) internal successors, (638), 2 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:24,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:24,222 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:24,224 INFO L175 Difference]: Start difference. First operand has 348 places, 380 transitions, 772 flow. Second operand 2 states and 638 transitions. [2022-11-20 11:08:24,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 287 transitions, 642 flow [2022-11-20 11:08:24,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 287 transitions, 640 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-20 11:08:24,244 INFO L231 Difference]: Finished difference. Result has 275 places, 287 transitions, 584 flow [2022-11-20 11:08:24,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=584, PETRI_PLACES=275, PETRI_TRANSITIONS=287} [2022-11-20 11:08:24,251 INFO L288 CegarLoopForPetriNet]: 348 programPoint places, -73 predicate places. [2022-11-20 11:08:24,252 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 287 transitions, 584 flow [2022-11-20 11:08:24,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 269.0) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:24,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:24,253 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:24,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:08:24,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2022-11-20 11:08:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:24,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1152197747, now seen corresponding path program 1 times [2022-11-20 11:08:24,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:24,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185768525] [2022-11-20 11:08:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:24,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:24,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:24,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:24,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185768525] [2022-11-20 11:08:24,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185768525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:24,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:24,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:08:24,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256751534] [2022-11-20 11:08:24,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:24,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:24,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:24,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:24,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:24,402 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 380 [2022-11-20 11:08:24,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 287 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:24,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:24,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 380 [2022-11-20 11:08:24,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:25,534 INFO L130 PetriNetUnfolder]: 1456/6898 cut-off events. [2022-11-20 11:08:25,534 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-11-20 11:08:25,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9233 conditions, 6898 events. 1456/6898 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 76023 event pairs, 192 based on Foata normal form. 0/5439 useless extension candidates. Maximal degree in co-relation 9228. Up to 1467 conditions per place. [2022-11-20 11:08:25,671 INFO L137 encePairwiseOnDemand]: 324/380 looper letters, 59 selfloop transitions, 46 changer transitions 0/334 dead transitions. [2022-11-20 11:08:25,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 334 transitions, 893 flow [2022-11-20 11:08:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:08:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 829 transitions. [2022-11-20 11:08:25,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7271929824561404 [2022-11-20 11:08:25,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 829 transitions. [2022-11-20 11:08:25,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 829 transitions. [2022-11-20 11:08:25,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:25,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 829 transitions. [2022-11-20 11:08:25,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:25,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:25,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:25,693 INFO L175 Difference]: Start difference. First operand has 275 places, 287 transitions, 584 flow. Second operand 3 states and 829 transitions. [2022-11-20 11:08:25,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 334 transitions, 893 flow [2022-11-20 11:08:25,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 334 transitions, 893 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:08:25,701 INFO L231 Difference]: Finished difference. Result has 279 places, 333 transitions, 972 flow [2022-11-20 11:08:25,701 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=972, PETRI_PLACES=279, PETRI_TRANSITIONS=333} [2022-11-20 11:08:25,702 INFO L288 CegarLoopForPetriNet]: 348 programPoint places, -69 predicate places. [2022-11-20 11:08:25,702 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 333 transitions, 972 flow [2022-11-20 11:08:25,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:25,703 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:25,703 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:25,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:08:25,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2022-11-20 11:08:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash -328269004, now seen corresponding path program 1 times [2022-11-20 11:08:25,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:25,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31669481] [2022-11-20 11:08:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:08:25,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:08:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:08:25,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:08:25,739 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:08:25,740 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (120 of 121 remaining) [2022-11-20 11:08:25,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (119 of 121 remaining) [2022-11-20 11:08:25,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (118 of 121 remaining) [2022-11-20 11:08:25,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (117 of 121 remaining) [2022-11-20 11:08:25,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (116 of 121 remaining) [2022-11-20 11:08:25,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (115 of 121 remaining) [2022-11-20 11:08:25,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (114 of 121 remaining) [2022-11-20 11:08:25,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (113 of 121 remaining) [2022-11-20 11:08:25,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (112 of 121 remaining) [2022-11-20 11:08:25,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (111 of 121 remaining) [2022-11-20 11:08:25,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (110 of 121 remaining) [2022-11-20 11:08:25,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (109 of 121 remaining) [2022-11-20 11:08:25,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (108 of 121 remaining) [2022-11-20 11:08:25,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (107 of 121 remaining) [2022-11-20 11:08:25,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (106 of 121 remaining) [2022-11-20 11:08:25,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONDATA_RACE (105 of 121 remaining) [2022-11-20 11:08:25,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONDATA_RACE (104 of 121 remaining) [2022-11-20 11:08:25,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (103 of 121 remaining) [2022-11-20 11:08:25,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (102 of 121 remaining) [2022-11-20 11:08:25,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (101 of 121 remaining) [2022-11-20 11:08:25,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONDATA_RACE (100 of 121 remaining) [2022-11-20 11:08:25,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (99 of 121 remaining) [2022-11-20 11:08:25,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONDATA_RACE (98 of 121 remaining) [2022-11-20 11:08:25,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (97 of 121 remaining) [2022-11-20 11:08:25,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (96 of 121 remaining) [2022-11-20 11:08:25,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (95 of 121 remaining) [2022-11-20 11:08:25,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONDATA_RACE (94 of 121 remaining) [2022-11-20 11:08:25,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONDATA_RACE (93 of 121 remaining) [2022-11-20 11:08:25,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (92 of 121 remaining) [2022-11-20 11:08:25,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (91 of 121 remaining) [2022-11-20 11:08:25,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (90 of 121 remaining) [2022-11-20 11:08:25,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (89 of 121 remaining) [2022-11-20 11:08:25,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (88 of 121 remaining) [2022-11-20 11:08:25,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONDATA_RACE (87 of 121 remaining) [2022-11-20 11:08:25,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONDATA_RACE (86 of 121 remaining) [2022-11-20 11:08:25,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (85 of 121 remaining) [2022-11-20 11:08:25,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (84 of 121 remaining) [2022-11-20 11:08:25,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (83 of 121 remaining) [2022-11-20 11:08:25,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (82 of 121 remaining) [2022-11-20 11:08:25,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (81 of 121 remaining) [2022-11-20 11:08:25,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (80 of 121 remaining) [2022-11-20 11:08:25,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (79 of 121 remaining) [2022-11-20 11:08:25,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (78 of 121 remaining) [2022-11-20 11:08:25,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (77 of 121 remaining) [2022-11-20 11:08:25,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (76 of 121 remaining) [2022-11-20 11:08:25,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 121 remaining) [2022-11-20 11:08:25,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (74 of 121 remaining) [2022-11-20 11:08:25,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 121 remaining) [2022-11-20 11:08:25,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 121 remaining) [2022-11-20 11:08:25,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (71 of 121 remaining) [2022-11-20 11:08:25,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (70 of 121 remaining) [2022-11-20 11:08:25,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (69 of 121 remaining) [2022-11-20 11:08:25,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (68 of 121 remaining) [2022-11-20 11:08:25,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (67 of 121 remaining) [2022-11-20 11:08:25,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (66 of 121 remaining) [2022-11-20 11:08:25,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONDATA_RACE (65 of 121 remaining) [2022-11-20 11:08:25,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONDATA_RACE (64 of 121 remaining) [2022-11-20 11:08:25,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (63 of 121 remaining) [2022-11-20 11:08:25,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (62 of 121 remaining) [2022-11-20 11:08:25,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 121 remaining) [2022-11-20 11:08:25,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONDATA_RACE (60 of 121 remaining) [2022-11-20 11:08:25,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 121 remaining) [2022-11-20 11:08:25,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONDATA_RACE (58 of 121 remaining) [2022-11-20 11:08:25,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (57 of 121 remaining) [2022-11-20 11:08:25,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (56 of 121 remaining) [2022-11-20 11:08:25,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (55 of 121 remaining) [2022-11-20 11:08:25,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONDATA_RACE (54 of 121 remaining) [2022-11-20 11:08:25,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONDATA_RACE (53 of 121 remaining) [2022-11-20 11:08:25,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (52 of 121 remaining) [2022-11-20 11:08:25,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (51 of 121 remaining) [2022-11-20 11:08:25,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (50 of 121 remaining) [2022-11-20 11:08:25,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (49 of 121 remaining) [2022-11-20 11:08:25,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (48 of 121 remaining) [2022-11-20 11:08:25,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONDATA_RACE (47 of 121 remaining) [2022-11-20 11:08:25,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONDATA_RACE (46 of 121 remaining) [2022-11-20 11:08:25,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (45 of 121 remaining) [2022-11-20 11:08:25,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (44 of 121 remaining) [2022-11-20 11:08:25,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (43 of 121 remaining) [2022-11-20 11:08:25,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (42 of 121 remaining) [2022-11-20 11:08:25,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (41 of 121 remaining) [2022-11-20 11:08:25,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (40 of 121 remaining) [2022-11-20 11:08:25,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 121 remaining) [2022-11-20 11:08:25,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 121 remaining) [2022-11-20 11:08:25,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 121 remaining) [2022-11-20 11:08:25,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 121 remaining) [2022-11-20 11:08:25,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 121 remaining) [2022-11-20 11:08:25,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 121 remaining) [2022-11-20 11:08:25,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 121 remaining) [2022-11-20 11:08:25,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 121 remaining) [2022-11-20 11:08:25,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (31 of 121 remaining) [2022-11-20 11:08:25,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (30 of 121 remaining) [2022-11-20 11:08:25,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (29 of 121 remaining) [2022-11-20 11:08:25,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (28 of 121 remaining) [2022-11-20 11:08:25,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (27 of 121 remaining) [2022-11-20 11:08:25,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 121 remaining) [2022-11-20 11:08:25,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONDATA_RACE (25 of 121 remaining) [2022-11-20 11:08:25,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONDATA_RACE (24 of 121 remaining) [2022-11-20 11:08:25,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (23 of 121 remaining) [2022-11-20 11:08:25,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 121 remaining) [2022-11-20 11:08:25,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 121 remaining) [2022-11-20 11:08:25,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONDATA_RACE (20 of 121 remaining) [2022-11-20 11:08:25,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 121 remaining) [2022-11-20 11:08:25,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONDATA_RACE (18 of 121 remaining) [2022-11-20 11:08:25,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (17 of 121 remaining) [2022-11-20 11:08:25,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (16 of 121 remaining) [2022-11-20 11:08:25,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (15 of 121 remaining) [2022-11-20 11:08:25,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONDATA_RACE (14 of 121 remaining) [2022-11-20 11:08:25,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONDATA_RACE (13 of 121 remaining) [2022-11-20 11:08:25,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (12 of 121 remaining) [2022-11-20 11:08:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (11 of 121 remaining) [2022-11-20 11:08:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (10 of 121 remaining) [2022-11-20 11:08:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (9 of 121 remaining) [2022-11-20 11:08:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (8 of 121 remaining) [2022-11-20 11:08:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONDATA_RACE (7 of 121 remaining) [2022-11-20 11:08:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONDATA_RACE (6 of 121 remaining) [2022-11-20 11:08:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (5 of 121 remaining) [2022-11-20 11:08:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (4 of 121 remaining) [2022-11-20 11:08:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (3 of 121 remaining) [2022-11-20 11:08:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (2 of 121 remaining) [2022-11-20 11:08:25,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (1 of 121 remaining) [2022-11-20 11:08:25,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (0 of 121 remaining) [2022-11-20 11:08:25,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:08:25,765 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 11:08:25,766 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:08:25,766 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 11:08:25,830 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:08:25,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 507 places, 555 transitions, 1131 flow [2022-11-20 11:08:26,000 INFO L130 PetriNetUnfolder]: 58/592 cut-off events. [2022-11-20 11:08:26,000 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 11:08:26,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 592 events. 58/592 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3241 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 535. Up to 8 conditions per place. [2022-11-20 11:08:26,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 507 places, 555 transitions, 1131 flow [2022-11-20 11:08:26,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 507 places, 555 transitions, 1131 flow [2022-11-20 11:08:26,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:08:26,040 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;@5b7e83b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:08:26,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 161 error locations. [2022-11-20 11:08:26,083 INFO L130 PetriNetUnfolder]: 4/63 cut-off events. [2022-11-20 11:08:26,083 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:08:26,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:26,084 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:26,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 157 more)] === [2022-11-20 11:08:26,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash -913718375, now seen corresponding path program 1 times [2022-11-20 11:08:26,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:26,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312210624] [2022-11-20 11:08:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:26,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:26,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:26,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312210624] [2022-11-20 11:08:26,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312210624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:26,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:26,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:08:26,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433149819] [2022-11-20 11:08:26,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:26,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:08:26,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:26,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:08:26,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:08:26,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 555 [2022-11-20 11:08:26,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 555 transitions, 1131 flow. Second operand has 2 states, 2 states have (on average 389.0) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:26,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:26,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 555 [2022-11-20 11:08:26,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:31,688 INFO L130 PetriNetUnfolder]: 6228/28587 cut-off events. [2022-11-20 11:08:31,688 INFO L131 PetriNetUnfolder]: For 1414/1414 co-relation queries the response was YES. [2022-11-20 11:08:31,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36958 conditions, 28587 events. 6228/28587 cut-off events. For 1414/1414 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 408138 event pairs, 3894 based on Foata normal form. 6644/30304 useless extension candidates. Maximal degree in co-relation 2516. Up to 7266 conditions per place. [2022-11-20 11:08:32,138 INFO L137 encePairwiseOnDemand]: 445/555 looper letters, 42 selfloop transitions, 0 changer transitions 0/419 dead transitions. [2022-11-20 11:08:32,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 419 transitions, 943 flow [2022-11-20 11:08:32,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:08:32,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 11:08:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 928 transitions. [2022-11-20 11:08:32,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.836036036036036 [2022-11-20 11:08:32,145 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 928 transitions. [2022-11-20 11:08:32,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 928 transitions. [2022-11-20 11:08:32,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:32,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 928 transitions. [2022-11-20 11:08:32,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 464.0) internal successors, (928), 2 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:32,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:32,154 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:32,154 INFO L175 Difference]: Start difference. First operand has 507 places, 555 transitions, 1131 flow. Second operand 2 states and 928 transitions. [2022-11-20 11:08:32,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 419 transitions, 943 flow [2022-11-20 11:08:32,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 419 transitions, 937 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-20 11:08:32,170 INFO L231 Difference]: Finished difference. Result has 400 places, 419 transitions, 853 flow [2022-11-20 11:08:32,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=853, PETRI_PLACES=400, PETRI_TRANSITIONS=419} [2022-11-20 11:08:32,174 INFO L288 CegarLoopForPetriNet]: 507 programPoint places, -107 predicate places. [2022-11-20 11:08:32,174 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 419 transitions, 853 flow [2022-11-20 11:08:32,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 389.0) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:32,175 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:32,175 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:32,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:08:32,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 157 more)] === [2022-11-20 11:08:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:32,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1909958625, now seen corresponding path program 1 times [2022-11-20 11:08:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679385541] [2022-11-20 11:08:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:32,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:32,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:32,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679385541] [2022-11-20 11:08:32,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679385541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:32,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:32,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:08:32,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700071986] [2022-11-20 11:08:32,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:32,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:32,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:32,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:32,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:32,266 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 555 [2022-11-20 11:08:32,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 419 transitions, 853 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:32,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:32,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 555 [2022-11-20 11:08:32,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:09:06,256 INFO L130 PetriNetUnfolder]: 94616/272193 cut-off events. [2022-11-20 11:09:06,257 INFO L131 PetriNetUnfolder]: For 3001/3001 co-relation queries the response was YES. [2022-11-20 11:09:07,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398926 conditions, 272193 events. 94616/272193 cut-off events. For 3001/3001 co-relation queries the response was YES. Maximal size of possible extension queue 8985. Compared 4369098 event pairs, 18441 based on Foata normal form. 0/209155 useless extension candidates. Maximal degree in co-relation 398920. Up to 84263 conditions per place. [2022-11-20 11:09:09,352 INFO L137 encePairwiseOnDemand]: 471/555 looper letters, 89 selfloop transitions, 69 changer transitions 0/490 dead transitions. [2022-11-20 11:09:09,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 490 transitions, 1321 flow [2022-11-20 11:09:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:09:09,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1202 transitions. [2022-11-20 11:09:09,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.721921921921922 [2022-11-20 11:09:09,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1202 transitions. [2022-11-20 11:09:09,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1202 transitions. [2022-11-20 11:09:09,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:09:09,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1202 transitions. [2022-11-20 11:09:09,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.6666666666667) internal successors, (1202), 3 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:09:09,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:09:09,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:09:09,368 INFO L175 Difference]: Start difference. First operand has 400 places, 419 transitions, 853 flow. Second operand 3 states and 1202 transitions. [2022-11-20 11:09:09,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 490 transitions, 1321 flow [2022-11-20 11:09:09,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 490 transitions, 1321 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:09:09,380 INFO L231 Difference]: Finished difference. Result has 404 places, 488 transitions, 1435 flow [2022-11-20 11:09:09,381 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1435, PETRI_PLACES=404, PETRI_TRANSITIONS=488} [2022-11-20 11:09:09,381 INFO L288 CegarLoopForPetriNet]: 507 programPoint places, -103 predicate places. [2022-11-20 11:09:09,382 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 488 transitions, 1435 flow [2022-11-20 11:09:09,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:09:09,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:09:09,383 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:09,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:09:09,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 157 more)] === [2022-11-20 11:09:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:09,384 INFO L85 PathProgramCache]: Analyzing trace with hash 425807481, now seen corresponding path program 1 times [2022-11-20 11:09:09,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:09:09,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492159380] [2022-11-20 11:09:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:09,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:09:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:09:09,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:09:09,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492159380] [2022-11-20 11:09:09,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492159380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:09,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:09,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:09:09,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507555605] [2022-11-20 11:09:09,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:09,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:09,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:09:09,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:09,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 555 [2022-11-20 11:09:09,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 488 transitions, 1435 flow. Second operand has 3 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:09:09,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:09:09,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 555 [2022-11-20 11:09:09,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand