./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8 --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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- 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-2329fc7 [2022-12-13 16:13:50,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:13:50,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:13:50,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:13:50,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:13:50,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:13:50,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:13:50,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:13:50,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:13:50,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:13:50,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:13:50,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:13:50,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:13:50,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:13:50,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:13:50,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:13:50,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:13:50,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:13:50,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:13:50,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:13:50,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:13:50,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:13:50,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:13:50,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:13:50,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:13:50,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:13:50,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:13:50,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:13:50,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:13:50,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:13:50,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:13:50,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:13:50,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:13:50,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:13:50,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:13:50,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:13:50,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:13:50,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:13:50,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:13:50,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:13:50,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:13:50,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:13:50,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:13:50,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:13:50,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:13:50,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:13:50,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:13:50,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:13:50,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:13:50,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:13:50,558 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:13:50,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:13:50,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:13:50,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:13:50,560 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:13:50,560 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:13:50,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:13:50,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:13:50,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:13:50,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:13:50,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:13:50,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:13:50,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:13:50,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:13:50,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:13:50,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:13:50,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:13:50,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:13:50,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:13:50,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:13:50,562 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:13:50,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:13:50,563 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:13:50,563 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2022-12-13 16:13:50,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:13:50,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:13:50,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:13:50,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:13:50,773 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:13:50,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2022-12-13 16:13:53,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:13:53,537 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:13:53,538 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2022-12-13 16:13:53,550 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/data/13a8faf0e/b58efd52b25640f3a740556e30a18d87/FLAGf095e3166 [2022-12-13 16:13:53,562 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/data/13a8faf0e/b58efd52b25640f3a740556e30a18d87 [2022-12-13 16:13:53,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:13:53,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:13:53,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:13:53,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:13:53,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:13:53,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:13:53" (1/1) ... [2022-12-13 16:13:53,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f937d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:53, skipping insertion in model container [2022-12-13 16:13:53,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:13:53" (1/1) ... [2022-12-13 16:13:53,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:13:53,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:13:53,902 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_c77680d8-9bdd-4bab-b9df-106178ea350a/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2022-12-13 16:13:53,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:13:53,940 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:13:53,976 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_c77680d8-9bdd-4bab-b9df-106178ea350a/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2022-12-13 16:13:53,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:13:54,032 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:13:54,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54 WrapperNode [2022-12-13 16:13:54,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:13:54,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:13:54,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:13:54,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:13:54,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,085 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 264 [2022-12-13 16:13:54,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:13:54,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:13:54,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:13:54,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:13:54,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:13:54,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:13:54,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:13:54,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:13:54,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (1/1) ... [2022-12-13 16:13:54,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:13:54,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:13:54,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:13:54,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77680d8-9bdd-4bab-b9df-106178ea350a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:13:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:13:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:13:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:13:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:13:54,187 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:13:54,296 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:13:54,298 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:13:54,641 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:13:54,649 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:13:54,649 INFO L300 CfgBuilder]: Removed 22 assume(true) statements. [2022-12-13 16:13:54,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:13:54 BoogieIcfgContainer [2022-12-13 16:13:54,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:13:54,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:13:54,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:13:54,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:13:54,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:13:53" (1/3) ... [2022-12-13 16:13:54,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc785b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:13:54, skipping insertion in model container [2022-12-13 16:13:54,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:13:54" (2/3) ... [2022-12-13 16:13:54,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc785b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:13:54, skipping insertion in model container [2022-12-13 16:13:54,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:13:54" (3/3) ... [2022-12-13 16:13:54,661 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2022-12-13 16:13:54,669 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:13:54,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:13:54,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 16:13:54,678 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:13:54,741 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 16:13:54,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 278 transitions, 564 flow [2022-12-13 16:13:54,878 INFO L130 PetriNetUnfolder]: 43/389 cut-off events. [2022-12-13 16:13:54,878 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:13:54,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 389 events. 43/389 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1573 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2022-12-13 16:13:54,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 278 transitions, 564 flow [2022-12-13 16:13:54,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 276 transitions, 560 flow [2022-12-13 16:13:54,899 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:13:54,907 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 276 transitions, 560 flow [2022-12-13 16:13:54,909 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 276 transitions, 560 flow [2022-12-13 16:13:54,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 276 transitions, 560 flow [2022-12-13 16:13:54,977 INFO L130 PetriNetUnfolder]: 42/387 cut-off events. [2022-12-13 16:13:54,978 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:13:54,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 387 events. 42/387 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1595 event pairs, 0 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2022-12-13 16:13:54,989 INFO L119 LiptonReduction]: Number of co-enabled transitions 21294 [2022-12-13 16:13:59,670 INFO L134 LiptonReduction]: Checked pairs total: 107106 [2022-12-13 16:13:59,671 INFO L136 LiptonReduction]: Total number of compositions: 172 [2022-12-13 16:13:59,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:13:59,685 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;@7cd5b789, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:13:59,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-12-13 16:13:59,689 INFO L130 PetriNetUnfolder]: 9/43 cut-off events. [2022-12-13 16:13:59,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:13:59,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:13:59,689 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 16:13:59,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-12-13 16:13:59,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:13:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1607834201, now seen corresponding path program 1 times [2022-12-13 16:13:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:13:59,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477716590] [2022-12-13 16:13:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:13:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:13:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:13:59,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:13:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:13:59,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:13:59,851 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:13:59,852 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-12-13 16:13:59,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-12-13 16:13:59,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-12-13 16:13:59,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-12-13 16:13:59,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-12-13 16:13:59,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-12-13 16:13:59,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-12-13 16:13:59,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-12-13 16:13:59,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-12-13 16:13:59,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-12-13 16:13:59,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:13:59,856 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 16:13:59,858 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 16:13:59,858 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 16:13:59,888 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 16:13:59,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 371 transitions, 760 flow [2022-12-13 16:13:59,968 INFO L130 PetriNetUnfolder]: 72/624 cut-off events. [2022-12-13 16:13:59,968 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 16:13:59,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 624 events. 72/624 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3072 event pairs, 0 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 391. Up to 12 conditions per place. [2022-12-13 16:13:59,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 371 transitions, 760 flow [2022-12-13 16:13:59,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 369 transitions, 756 flow [2022-12-13 16:13:59,977 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:13:59,977 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 333 places, 369 transitions, 756 flow [2022-12-13 16:13:59,978 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 333 places, 369 transitions, 756 flow [2022-12-13 16:13:59,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 369 transitions, 756 flow [2022-12-13 16:14:00,052 INFO L130 PetriNetUnfolder]: 71/622 cut-off events. [2022-12-13 16:14:00,052 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 16:14:00,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 622 events. 71/622 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3103 event pairs, 0 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 389. Up to 12 conditions per place. [2022-12-13 16:14:00,074 INFO L119 LiptonReduction]: Number of co-enabled transitions 61152 [2022-12-13 16:14:05,390 INFO L134 LiptonReduction]: Checked pairs total: 306096 [2022-12-13 16:14:05,390 INFO L136 LiptonReduction]: Total number of compositions: 210 [2022-12-13 16:14:05,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:14:05,393 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;@7cd5b789, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:14:05,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-13 16:14:05,399 INFO L130 PetriNetUnfolder]: 14/85 cut-off events. [2022-12-13 16:14:05,399 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:14:05,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:14:05,399 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:05,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 16:14:05,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash -591867871, now seen corresponding path program 1 times [2022-12-13 16:14:05,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:05,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600617997] [2022-12-13 16:14:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:14:05,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:05,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600617997] [2022-12-13 16:14:05,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600617997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:05,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:05,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:14:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832313828] [2022-12-13 16:14:05,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:05,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:14:05,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:05,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:14:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:14:05,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 581 [2022-12-13 16:14:05,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 194 transitions, 406 flow. Second operand has 2 states, 2 states have (on average 331.0) internal successors, (662), 2 states have internal predecessors, (662), 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) [2022-12-13 16:14:05,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:14:05,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 581 [2022-12-13 16:14:05,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:14:08,316 INFO L130 PetriNetUnfolder]: 14759/34998 cut-off events. [2022-12-13 16:14:08,316 INFO L131 PetriNetUnfolder]: For 211/262 co-relation queries the response was YES. [2022-12-13 16:14:08,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56622 conditions, 34998 events. 14759/34998 cut-off events. For 211/262 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 378153 event pairs, 13600 based on Foata normal form. 4608/36432 useless extension candidates. Maximal degree in co-relation 26994. Up to 21511 conditions per place. [2022-12-13 16:14:08,525 INFO L137 encePairwiseOnDemand]: 549/581 looper letters, 61 selfloop transitions, 0 changer transitions 0/161 dead transitions. [2022-12-13 16:14:08,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 161 transitions, 462 flow [2022-12-13 16:14:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:14:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:14:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 751 transitions. [2022-12-13 16:14:08,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6462994836488812 [2022-12-13 16:14:08,539 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 751 transitions. [2022-12-13 16:14:08,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 751 transitions. [2022-12-13 16:14:08,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:14:08,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 751 transitions. [2022-12-13 16:14:08,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 375.5) internal successors, (751), 2 states have internal predecessors, (751), 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) [2022-12-13 16:14:08,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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) [2022-12-13 16:14:08,554 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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) [2022-12-13 16:14:08,556 INFO L175 Difference]: Start difference. First operand has 162 places, 194 transitions, 406 flow. Second operand 2 states and 751 transitions. [2022-12-13 16:14:08,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 161 transitions, 462 flow [2022-12-13 16:14:08,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 462 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:14:08,562 INFO L231 Difference]: Finished difference. Result has 162 places, 161 transitions, 340 flow [2022-12-13 16:14:08,564 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=581, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=340, PETRI_PLACES=162, PETRI_TRANSITIONS=161} [2022-12-13 16:14:08,567 INFO L288 CegarLoopForPetriNet]: 162 programPoint places, 0 predicate places. [2022-12-13 16:14:08,567 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 161 transitions, 340 flow [2022-12-13 16:14:08,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 331.0) internal successors, (662), 2 states have internal predecessors, (662), 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) [2022-12-13 16:14:08,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:14:08,568 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:08,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:14:08,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 16:14:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash 321494472, now seen corresponding path program 1 times [2022-12-13 16:14:08,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:08,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501092302] [2022-12-13 16:14:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:08,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:14:08,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:08,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501092302] [2022-12-13 16:14:08,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501092302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:08,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:08,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:14:08,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204680086] [2022-12-13 16:14:08,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:08,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:14:08,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:08,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:14:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:14:09,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 581 [2022-12-13 16:14:09,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 161 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 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) [2022-12-13 16:14:09,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:14:09,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 581 [2022-12-13 16:14:09,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:14:18,674 INFO L130 PetriNetUnfolder]: 73091/130674 cut-off events. [2022-12-13 16:14:18,674 INFO L131 PetriNetUnfolder]: For 401/417 co-relation queries the response was YES. [2022-12-13 16:14:18,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240789 conditions, 130674 events. 73091/130674 cut-off events. For 401/417 co-relation queries the response was YES. Maximal size of possible extension queue 2761. Compared 1291383 event pairs, 36555 based on Foata normal form. 5/121369 useless extension candidates. Maximal degree in co-relation 240784. Up to 80069 conditions per place. [2022-12-13 16:14:19,354 INFO L137 encePairwiseOnDemand]: 545/581 looper letters, 225 selfloop transitions, 81 changer transitions 0/371 dead transitions. [2022-12-13 16:14:19,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 371 transitions, 1378 flow [2022-12-13 16:14:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:14:19,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:14:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2001 transitions. [2022-12-13 16:14:19,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5740103270223752 [2022-12-13 16:14:19,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2001 transitions. [2022-12-13 16:14:19,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2001 transitions. [2022-12-13 16:14:19,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:14:19,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2001 transitions. [2022-12-13 16:14:19,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.5) internal successors, (2001), 6 states have internal predecessors, (2001), 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) [2022-12-13 16:14:19,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 581.0) internal successors, (4067), 7 states have internal predecessors, (4067), 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) [2022-12-13 16:14:19,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 581.0) internal successors, (4067), 7 states have internal predecessors, (4067), 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) [2022-12-13 16:14:19,396 INFO L175 Difference]: Start difference. First operand has 162 places, 161 transitions, 340 flow. Second operand 6 states and 2001 transitions. [2022-12-13 16:14:19,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 371 transitions, 1378 flow [2022-12-13 16:14:19,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 371 transitions, 1378 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:14:19,410 INFO L231 Difference]: Finished difference. Result has 172 places, 239 transitions, 886 flow [2022-12-13 16:14:19,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=581, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=172, PETRI_TRANSITIONS=239} [2022-12-13 16:14:19,411 INFO L288 CegarLoopForPetriNet]: 162 programPoint places, 10 predicate places. [2022-12-13 16:14:19,412 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 239 transitions, 886 flow [2022-12-13 16:14:19,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 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) [2022-12-13 16:14:19,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:14:19,414 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 16:14:19,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:14:19,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 16:14:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:19,415 INFO L85 PathProgramCache]: Analyzing trace with hash -272397805, now seen corresponding path program 1 times [2022-12-13 16:14:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:19,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766784360] [2022-12-13 16:14:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:19,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:19,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:19,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:19,461 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:14:19,461 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-12-13 16:14:19,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-12-13 16:14:19,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-12-13 16:14:19,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-12-13 16:14:19,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-12-13 16:14:19,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-12-13 16:14:19,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-12-13 16:14:19,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-12-13 16:14:19,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-12-13 16:14:19,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-12-13 16:14:19,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-12-13 16:14:19,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-12-13 16:14:19,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-12-13 16:14:19,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-12-13 16:14:19,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-12-13 16:14:19,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-12-13 16:14:19,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:14:19,465 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 16:14:19,466 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 16:14:19,466 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-13 16:14:19,507 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 16:14:19,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 416 places, 464 transitions, 958 flow [2022-12-13 16:14:19,629 INFO L130 PetriNetUnfolder]: 106/904 cut-off events. [2022-12-13 16:14:19,629 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 16:14:19,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 904 events. 106/904 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4893 event pairs, 1 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 632. Up to 16 conditions per place. [2022-12-13 16:14:19,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 416 places, 464 transitions, 958 flow [2022-12-13 16:14:19,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 415 places, 462 transitions, 954 flow [2022-12-13 16:14:19,643 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:14:19,643 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 415 places, 462 transitions, 954 flow [2022-12-13 16:14:19,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 415 places, 462 transitions, 954 flow [2022-12-13 16:14:19,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 415 places, 462 transitions, 954 flow [2022-12-13 16:14:19,763 INFO L130 PetriNetUnfolder]: 105/902 cut-off events. [2022-12-13 16:14:19,763 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 16:14:19,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 902 events. 105/902 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4922 event pairs, 1 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 630. Up to 16 conditions per place. [2022-12-13 16:14:19,806 INFO L119 LiptonReduction]: Number of co-enabled transitions 117390 [2022-12-13 16:14:24,942 INFO L134 LiptonReduction]: Checked pairs total: 596467 [2022-12-13 16:14:24,943 INFO L136 LiptonReduction]: Total number of compositions: 261 [2022-12-13 16:14:24,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:14:24,945 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;@7cd5b789, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:14:24,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-13 16:14:24,948 INFO L130 PetriNetUnfolder]: 16/76 cut-off events. [2022-12-13 16:14:24,948 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:14:24,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:14:24,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:24,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 16:14:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1488735977, now seen corresponding path program 1 times [2022-12-13 16:14:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:24,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331531223] [2022-12-13 16:14:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:24,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:14:24,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:24,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331531223] [2022-12-13 16:14:24,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331531223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:24,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:24,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:14:24,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738965324] [2022-12-13 16:14:24,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:24,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:14:24,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:24,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:14:24,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:14:24,967 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 725 [2022-12-13 16:14:24,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 253 transitions, 536 flow. Second operand has 2 states, 2 states have (on average 410.0) internal successors, (820), 2 states have internal predecessors, (820), 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) [2022-12-13 16:14:24,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:14:24,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 725 [2022-12-13 16:14:24,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:15:23,244 INFO L130 PetriNetUnfolder]: 402175/772469 cut-off events. [2022-12-13 16:15:23,244 INFO L131 PetriNetUnfolder]: For 5671/6871 co-relation queries the response was YES. [2022-12-13 16:15:25,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1295384 conditions, 772469 events. 402175/772469 cut-off events. For 5671/6871 co-relation queries the response was YES. Maximal size of possible extension queue 15307. Compared 10225931 event pairs, 377214 based on Foata normal form. 133475/840433 useless extension candidates. Maximal degree in co-relation 298831. Up to 520284 conditions per place. [2022-12-13 16:15:28,126 INFO L137 encePairwiseOnDemand]: 683/725 looper letters, 80 selfloop transitions, 0 changer transitions 0/210 dead transitions. [2022-12-13 16:15:28,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 210 transitions, 610 flow [2022-12-13 16:15:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:15:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:15:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 938 transitions. [2022-12-13 16:15:28,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.646896551724138 [2022-12-13 16:15:28,129 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 938 transitions. [2022-12-13 16:15:28,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 938 transitions. [2022-12-13 16:15:28,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:15:28,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 938 transitions. [2022-12-13 16:15:28,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 469.0) internal successors, (938), 2 states have internal predecessors, (938), 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) [2022-12-13 16:15:28,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 725.0) internal successors, (2175), 3 states have internal predecessors, (2175), 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) [2022-12-13 16:15:28,135 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 725.0) internal successors, (2175), 3 states have internal predecessors, (2175), 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) [2022-12-13 16:15:28,135 INFO L175 Difference]: Start difference. First operand has 211 places, 253 transitions, 536 flow. Second operand 2 states and 938 transitions. [2022-12-13 16:15:28,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 210 transitions, 610 flow [2022-12-13 16:15:28,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 210 transitions, 610 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:15:28,139 INFO L231 Difference]: Finished difference. Result has 211 places, 210 transitions, 450 flow [2022-12-13 16:15:28,140 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=725, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=450, PETRI_PLACES=211, PETRI_TRANSITIONS=210} [2022-12-13 16:15:28,140 INFO L288 CegarLoopForPetriNet]: 211 programPoint places, 0 predicate places. [2022-12-13 16:15:28,141 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 210 transitions, 450 flow [2022-12-13 16:15:28,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 410.0) internal successors, (820), 2 states have internal predecessors, (820), 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) [2022-12-13 16:15:28,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:15:28,141 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:15:28,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:15:28,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 16:15:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:15:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash -992765758, now seen corresponding path program 1 times [2022-12-13 16:15:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:15:28,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953504168] [2022-12-13 16:15:28,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:15:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:15:28,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:15:28,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953504168] [2022-12-13 16:15:28,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953504168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:15:28,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:15:28,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:15:28,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210945876] [2022-12-13 16:15:28,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:15:28,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:15:28,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:15:28,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:15:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:15:28,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 725 [2022-12-13 16:15:28,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 210 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 354.5) internal successors, (2127), 6 states have internal predecessors, (2127), 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) [2022-12-13 16:15:28,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:15:28,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 725 [2022-12-13 16:15:28,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand