./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS --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 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 --- 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-4e7fbc6 [2022-11-23 02:33:58,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:33:58,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:33:58,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:33:58,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:33:58,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:33:58,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:33:58,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:33:58,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:33:58,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:33:58,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:33:58,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:33:58,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:33:58,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:33:58,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:33:58,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:33:58,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:33:58,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:33:58,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:33:58,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:33:58,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:33:58,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:33:58,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:33:58,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:33:58,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:33:58,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:33:58,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:33:58,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:33:58,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:33:58,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:33:58,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:33:58,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:33:58,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:33:58,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:33:58,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:33:58,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:33:58,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:33:58,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:33:58,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:33:58,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:33:58,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:33:58,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 02:33:58,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:33:58,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:33:58,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:33:58,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:33:58,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:33:58,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:33:58,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:33:58,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:33:58,660 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:33:58,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:33:58,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:33:58,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:33:58,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:33:58,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:33:58,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:33:58,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:33:58,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:33:58,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:33:58,664 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 02:33:58,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:33:58,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:33:58,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:33:58,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:33:58,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:33:58,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:33:58,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:33:58,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:33:58,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:33:58,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:33:58,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:33:58,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:33:58,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:33:58,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:33:58,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:33:58,669 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:33:58,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:33:58,670 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_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 [2022-11-23 02:33:58,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:33:58,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:33:59,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:33:59,011 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:33:59,011 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:33:59,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i [2022-11-23 02:34:02,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:34:02,507 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:34:02,512 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i [2022-11-23 02:34:02,539 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/data/da14387fb/641e0599d2b64b8fb6f6a2ac24abb24e/FLAG8158d1829 [2022-11-23 02:34:02,555 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/data/da14387fb/641e0599d2b64b8fb6f6a2ac24abb24e [2022-11-23 02:34:02,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:34:02,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:34:02,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:34:02,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:34:02,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:34:02,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:02" (1/1) ... [2022-11-23 02:34:02,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c23b7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:02, skipping insertion in model container [2022-11-23 02:34:02,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:02" (1/1) ... [2022-11-23 02:34:02,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:34:02,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:34:03,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:34:03,223 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:34:03,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:34:03,340 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:34:03,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03 WrapperNode [2022-11-23 02:34:03,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:34:03,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:34:03,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:34:03,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:34:03,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,416 INFO L138 Inliner]: procedures = 264, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2022-11-23 02:34:03,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:34:03,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:34:03,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:34:03,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:34:03,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:34:03,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:34:03,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:34:03,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:34:03,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (1/1) ... [2022-11-23 02:34:03,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:34:03,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:34:03,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:34:03,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:34:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:34:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:34:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:34:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 02:34:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:34:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 02:34:03,572 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 02:34:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:34:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:34:03,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:34:03,575 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:34:03,794 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:34:03,796 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:34:03,994 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:34:04,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:34:04,017 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 02:34:04,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:04 BoogieIcfgContainer [2022-11-23 02:34:04,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:34:04,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:34:04,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:34:04,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:34:04,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:02" (1/3) ... [2022-11-23 02:34:04,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b38e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:04, skipping insertion in model container [2022-11-23 02:34:04,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:03" (2/3) ... [2022-11-23 02:34:04,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b38e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:04, skipping insertion in model container [2022-11-23 02:34:04,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:04" (3/3) ... [2022-11-23 02:34:04,030 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_15-exit_problems.i [2022-11-23 02:34:04,071 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:34:04,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:34:04,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-23 02:34:04,084 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:34:04,135 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:34:04,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 83 transitions, 171 flow [2022-11-23 02:34:04,275 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-23 02:34:04,276 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:34:04,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-23 02:34:04,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 83 transitions, 171 flow [2022-11-23 02:34:04,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 82 transitions, 167 flow [2022-11-23 02:34:04,295 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:34:04,330 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 82 transitions, 167 flow [2022-11-23 02:34:04,334 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 82 transitions, 167 flow [2022-11-23 02:34:04,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 167 flow [2022-11-23 02:34:04,388 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-23 02:34:04,388 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:34:04,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-23 02:34:04,392 INFO L119 LiptonReduction]: Number of co-enabled transitions 1258 [2022-11-23 02:34:07,177 INFO L134 LiptonReduction]: Checked pairs total: 4563 [2022-11-23 02:34:07,177 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-11-23 02:34:07,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:34:07,203 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;@5c8dbd5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:34:07,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 02:34:07,206 INFO L130 PetriNetUnfolder]: 1/5 cut-off events. [2022-11-23 02:34:07,207 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:34:07,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:34:07,208 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:34:07,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-23 02:34:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:07,214 INFO L85 PathProgramCache]: Analyzing trace with hash 8802944, now seen corresponding path program 1 times [2022-11-23 02:34:07,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:07,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766765050] [2022-11-23 02:34:07,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:07,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:34:07,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:07,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766765050] [2022-11-23 02:34:07,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766765050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:07,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:07,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:34:07,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107894745] [2022-11-23 02:34:07,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:07,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:34:07,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:34:07,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:34:07,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 150 [2022-11-23 02:34:07,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 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) [2022-11-23 02:34:07,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:34:07,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 150 [2022-11-23 02:34:07,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:34:07,511 INFO L130 PetriNetUnfolder]: 16/67 cut-off events. [2022-11-23 02:34:07,511 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:34:07,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 67 events. 16/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 208 event pairs, 16 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 105. Up to 43 conditions per place. [2022-11-23 02:34:07,514 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 10 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2022-11-23 02:34:07,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 63 flow [2022-11-23 02:34:07,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:34:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:34:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2022-11-23 02:34:07,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.57 [2022-11-23 02:34:07,529 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2022-11-23 02:34:07,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2022-11-23 02:34:07,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:34:07,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2022-11-23 02:34:07,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2022-11-23 02:34:07,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2022-11-23 02:34:07,541 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2022-11-23 02:34:07,544 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 2 states and 171 transitions. [2022-11-23 02:34:07,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 63 flow [2022-11-23 02:34:07,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:34:07,549 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 42 flow [2022-11-23 02:34:07,551 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2022-11-23 02:34:07,554 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2022-11-23 02:34:07,555 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 42 flow [2022-11-23 02:34:07,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 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) [2022-11-23 02:34:07,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:34:07,555 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:34:07,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:34:07,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-23 02:34:07,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 8803901, now seen corresponding path program 1 times [2022-11-23 02:34:07,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:07,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500550572] [2022-11-23 02:34:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:07,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:07,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:34:07,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:07,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500550572] [2022-11-23 02:34:07,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500550572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:07,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:07,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:07,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556703073] [2022-11-23 02:34:07,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:07,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:07,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:07,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:07,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:07,661 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 150 [2022-11-23 02:34:07,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2022-11-23 02:34:07,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:34:07,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 150 [2022-11-23 02:34:07,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:34:07,711 INFO L130 PetriNetUnfolder]: 36/118 cut-off events. [2022-11-23 02:34:07,711 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:34:07,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 118 events. 36/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 467 event pairs, 15 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 212. Up to 47 conditions per place. [2022-11-23 02:34:07,712 INFO L137 encePairwiseOnDemand]: 142/150 looper letters, 20 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2022-11-23 02:34:07,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 116 flow [2022-11-23 02:34:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:34:07,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2022-11-23 02:34:07,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5288888888888889 [2022-11-23 02:34:07,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2022-11-23 02:34:07,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2022-11-23 02:34:07,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:34:07,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2022-11-23 02:34:07,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2022-11-23 02:34:07,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:07,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:07,721 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 42 flow. Second operand 3 states and 238 transitions. [2022-11-23 02:34:07,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 116 flow [2022-11-23 02:34:07,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:34:07,722 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 94 flow [2022-11-23 02:34:07,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2022-11-23 02:34:07,723 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2022-11-23 02:34:07,724 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 94 flow [2022-11-23 02:34:07,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2022-11-23 02:34:07,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:34:07,724 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:07,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:34:07,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-23 02:34:07,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:07,725 INFO L85 PathProgramCache]: Analyzing trace with hash 220918268, now seen corresponding path program 1 times [2022-11-23 02:34:07,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:07,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182381328] [2022-11-23 02:34:07,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:07,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:34:07,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:07,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182381328] [2022-11-23 02:34:07,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182381328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:07,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:07,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:07,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106353207] [2022-11-23 02:34:07,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:07,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:07,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:07,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:07,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:07,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 150 [2022-11-23 02:34:07,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2022-11-23 02:34:07,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:34:07,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 150 [2022-11-23 02:34:07,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:34:07,863 INFO L130 PetriNetUnfolder]: 31/111 cut-off events. [2022-11-23 02:34:07,863 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-23 02:34:07,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 111 events. 31/111 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 418 event pairs, 11 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 264. Up to 56 conditions per place. [2022-11-23 02:34:07,865 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 16 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2022-11-23 02:34:07,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 33 transitions, 164 flow [2022-11-23 02:34:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:07,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:34:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2022-11-23 02:34:07,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5088888888888888 [2022-11-23 02:34:07,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2022-11-23 02:34:07,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2022-11-23 02:34:07,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:34:07,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2022-11-23 02:34:07,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2022-11-23 02:34:07,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:07,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:07,872 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 94 flow. Second operand 3 states and 229 transitions. [2022-11-23 02:34:07,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 33 transitions, 164 flow [2022-11-23 02:34:07,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 33 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:34:07,875 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 138 flow [2022-11-23 02:34:07,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2022-11-23 02:34:07,876 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2022-11-23 02:34:07,876 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 138 flow [2022-11-23 02:34:07,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2022-11-23 02:34:07,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:34:07,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:07,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:34:07,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-23 02:34:07,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:07,878 INFO L85 PathProgramCache]: Analyzing trace with hash 701173942, now seen corresponding path program 1 times [2022-11-23 02:34:07,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:07,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428788747] [2022-11-23 02:34:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:34:07,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:07,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428788747] [2022-11-23 02:34:07,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428788747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:07,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:07,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:07,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373317220] [2022-11-23 02:34:07,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:07,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:07,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:07,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:07,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 150 [2022-11-23 02:34:07,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2022-11-23 02:34:07,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:34:07,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 150 [2022-11-23 02:34:07,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:34:08,009 INFO L130 PetriNetUnfolder]: 34/118 cut-off events. [2022-11-23 02:34:08,009 INFO L131 PetriNetUnfolder]: For 99/108 co-relation queries the response was YES. [2022-11-23 02:34:08,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 118 events. 34/118 cut-off events. For 99/108 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 450 event pairs, 16 based on Foata normal form. 9/117 useless extension candidates. Maximal degree in co-relation 332. Up to 65 conditions per place. [2022-11-23 02:34:08,011 INFO L137 encePairwiseOnDemand]: 146/150 looper letters, 15 selfloop transitions, 6 changer transitions 6/37 dead transitions. [2022-11-23 02:34:08,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 222 flow [2022-11-23 02:34:08,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:08,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:34:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2022-11-23 02:34:08,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-11-23 02:34:08,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2022-11-23 02:34:08,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2022-11-23 02:34:08,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:34:08,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2022-11-23 02:34:08,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2022-11-23 02:34:08,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:08,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:08,017 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 138 flow. Second operand 3 states and 225 transitions. [2022-11-23 02:34:08,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 222 flow [2022-11-23 02:34:08,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:34:08,020 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 144 flow [2022-11-23 02:34:08,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2022-11-23 02:34:08,021 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2022-11-23 02:34:08,022 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 144 flow [2022-11-23 02:34:08,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2022-11-23 02:34:08,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:34:08,022 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:08,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:34:08,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-23 02:34:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash -487009005, now seen corresponding path program 1 times [2022-11-23 02:34:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940459877] [2022-11-23 02:34:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:08,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:34:08,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:34:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:34:08,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:34:08,081 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:34:08,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-23 02:34:08,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-23 02:34:08,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-23 02:34:08,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2022-11-23 02:34:08,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-23 02:34:08,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-23 02:34:08,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-23 02:34:08,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-23 02:34:08,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:34:08,087 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 02:34:08,095 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:34:08,095 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:34:08,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:34:08 BasicIcfg [2022-11-23 02:34:08,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:34:08,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:34:08,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:34:08,137 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:34:08,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:04" (3/4) ... [2022-11-23 02:34:08,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:34:08,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:34:08,141 INFO L158 Benchmark]: Toolchain (without parser) took 5581.44ms. Allocated memory was 125.8MB in the beginning and 167.8MB in the end (delta: 41.9MB). Free memory was 92.4MB in the beginning and 58.0MB in the end (delta: 34.3MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-11-23 02:34:08,142 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 90.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:34:08,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.86ms. Allocated memory is still 125.8MB. Free memory was 92.4MB in the beginning and 64.7MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 02:34:08,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.93ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:34:08,144 INFO L158 Benchmark]: Boogie Preprocessor took 57.26ms. Allocated memory is still 125.8MB. Free memory was 62.6MB in the beginning and 60.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:34:08,145 INFO L158 Benchmark]: RCFGBuilder took 544.61ms. Allocated memory was 125.8MB in the beginning and 167.8MB in the end (delta: 41.9MB). Free memory was 60.9MB in the beginning and 136.9MB in the end (delta: -76.0MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-11-23 02:34:08,145 INFO L158 Benchmark]: TraceAbstraction took 4113.25ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 58.0MB in the end (delta: 78.2MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-11-23 02:34:08,146 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 167.8MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:34:08,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 90.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.86ms. Allocated memory is still 125.8MB. Free memory was 92.4MB in the beginning and 64.7MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.93ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.26ms. Allocated memory is still 125.8MB. Free memory was 62.6MB in the beginning and 60.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.61ms. Allocated memory was 125.8MB in the beginning and 167.8MB in the end (delta: 41.9MB). Free memory was 60.9MB in the beginning and 136.9MB in the end (delta: -76.0MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4113.25ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 58.0MB in the end (delta: 78.2MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 167.8MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 84 PlacesBefore, 26 PlacesAfterwards, 82 TransitionsBefore, 23 TransitionsAfterwards, 1258 CoEnabledTransitionPairs, 9 FixpointIterations, 26 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 4563 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1965, independent: 1666, independent conditional: 0, independent unconditional: 1666, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 900, independent: 851, independent conditional: 0, independent unconditional: 851, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 900, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 118, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 225, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1965, independent: 815, independent conditional: 0, independent unconditional: 815, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 900, unknown conditional: 0, unknown unconditional: 900] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int glob; [L919] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t bad = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L934] 0 pthread_t id; [L935] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [#in~arg={0:0}, bad={2:0}, glob=0, id={3:0}, mutex={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L929] 1 glob++ VAL [#in~arg={0:0}, arg={0:0}, bad={2:0}, glob=0, mutex={1:0}] [L936] COND TRUE 0 1 [L937] CALL 0 f(&bad) [L923] 0 glob++ VAL [#in~arg={0:0}, #in~m={2:0}, arg={0:0}, bad={2:0}, glob=0, m={2:0}, mutex={1:0}] [L929] 1 glob++ VAL [#in~arg={0:0}, arg={0:0}, bad={2:0}, glob=1, glob++=0, glob++=25, mutex={1:0}] [L923] 0 glob++ VAL [#in~arg={0:0}, #in~m={2:0}, arg={0:0}, bad={2:0}, glob=1, glob++=0, glob++=25, m={2:0}, mutex={1:0}] Now there is a data race on ~glob~0 between C: glob++ [929] and C: glob++ [923] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 929]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 19 mSDtfsCounter, 161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=4, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 02:34:08,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33dcbc59-a73b-4ed0-87c6-cf966e401110/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE