./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF --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 0a92542e2dda55880e261e8e9c4c926ece76b9696d64e1535984774b57178a24 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:32:42,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:32:42,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:32:42,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:32:42,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:32:42,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:32:42,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:32:42,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:32:42,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:32:42,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:32:42,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:32:42,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:32:42,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:32:42,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:32:42,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:32:42,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:32:42,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:32:42,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:32:42,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:32:42,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:32:42,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:32:42,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:32:42,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:32:42,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:32:42,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:32:42,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:32:42,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:32:42,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:32:42,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:32:42,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:32:42,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:32:42,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:32:42,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:32:42,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:32:42,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:32:42,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:32:42,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:32:42,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:32:42,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:32:42,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:32:42,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:32:42,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 06:32:42,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:32:42,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:32:42,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:32:42,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:32:42,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:32:42,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:32:42,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:32:42,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:32:42,527 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:32:42,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:32:42,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:32:42,529 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:32:42,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:32:42,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:32:42,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:32:42,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:32:42,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:32:42,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:32:42,531 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 06:32:42,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:32:42,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:32:42,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:32:42,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:32:42,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:32:42,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:32:42,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:32:42,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:32:42,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:32:42,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:32:42,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:32:42,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:32:42,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:32:42,534 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:32:42,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:32:42,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:32:42,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:32:42,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a92542e2dda55880e261e8e9c4c926ece76b9696d64e1535984774b57178a24 [2021-11-20 06:32:42,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:32:42,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:32:42,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:32:42,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:32:42,854 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:32:42,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i [2021-11-20 06:32:42,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/data/9607f407c/5633c5b9ed7d49319ceae5180b631cb3/FLAG37349d105 [2021-11-20 06:32:43,527 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:32:43,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i [2021-11-20 06:32:43,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/data/9607f407c/5633c5b9ed7d49319ceae5180b631cb3/FLAG37349d105 [2021-11-20 06:32:43,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/data/9607f407c/5633c5b9ed7d49319ceae5180b631cb3 [2021-11-20 06:32:43,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:32:43,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:32:43,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:32:43,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:32:43,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:32:43,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:32:43" (1/1) ... [2021-11-20 06:32:43,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680d84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:43, skipping insertion in model container [2021-11-20 06:32:43,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:32:43" (1/1) ... [2021-11-20 06:32:43,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:32:43,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:32:44,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:44,392 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:32:44,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:44,520 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:32:44,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44 WrapperNode [2021-11-20 06:32:44,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:32:44,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:32:44,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:32:44,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:32:44,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,605 INFO L137 Inliner]: procedures = 166, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2021-11-20 06:32:44,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:32:44,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:32:44,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:32:44,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:32:44,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:32:44,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:32:44,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:32:44,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:32:44,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (1/1) ... [2021-11-20 06:32:44,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:32:44,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:32:44,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:32:44,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:32:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:32:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:32:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 06:32:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:32:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:32:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 06:32:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 06:32:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:32:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:32:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:32:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:32:44,768 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 06:32:44,949 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:32:44,951 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:32:45,215 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:32:45,224 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:32:45,224 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:32:45,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:45 BoogieIcfgContainer [2021-11-20 06:32:45,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:32:45,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:32:45,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:32:45,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:32:45,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:32:43" (1/3) ... [2021-11-20 06:32:45,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf0c8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:32:45, skipping insertion in model container [2021-11-20 06:32:45,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:44" (2/3) ... [2021-11-20 06:32:45,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf0c8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:32:45, skipping insertion in model container [2021-11-20 06:32:45,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:45" (3/3) ... [2021-11-20 06:32:45,236 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_19-call_by_ptr_rc.i [2021-11-20 06:32:45,242 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 06:32:45,242 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:32:45,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-20 06:32:45,242 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 06:32:45,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,271 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,271 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,272 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,272 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,280 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,281 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:32:45,285 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-20 06:32:45,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:32:45,344 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:32:45,344 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-20 06:32:45,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 107 transitions, 222 flow [2021-11-20 06:32:45,403 INFO L129 PetriNetUnfolder]: 3/106 cut-off events. [2021-11-20 06:32:45,403 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 06:32:45,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 3/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 123 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-11-20 06:32:45,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 107 transitions, 222 flow [2021-11-20 06:32:45,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 98 transitions, 199 flow [2021-11-20 06:32:45,423 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-11-20 06:32:45,423 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 06:32:45,423 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:32:45,424 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:45,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 06:32:45,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1400574992, now seen corresponding path program 1 times [2021-11-20 06:32:45,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:45,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261716051] [2021-11-20 06:32:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:45,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:45,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:45,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261716051] [2021-11-20 06:32:45,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261716051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:45,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:45,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:32:45,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003015089] [2021-11-20 06:32:45,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:45,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:32:45,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:45,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:32:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:45,741 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 107 [2021-11-20 06:32:45,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2021-11-20 06:32:45,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:32:45,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 107 [2021-11-20 06:32:45,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:32:45,973 INFO L129 PetriNetUnfolder]: 50/410 cut-off events. [2021-11-20 06:32:45,974 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 06:32:45,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 410 events. 50/410 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1665 event pairs, 15 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 480. Up to 55 conditions per place. [2021-11-20 06:32:45,981 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 17 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2021-11-20 06:32:45,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 107 transitions, 263 flow [2021-11-20 06:32:45,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:32:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:32:45,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-11-20 06:32:45,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-11-20 06:32:45,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-11-20 06:32:45,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-11-20 06:32:45,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:32:46,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-11-20 06:32:46,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2021-11-20 06:32:46,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:46,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:46,016 INFO L186 Difference]: Start difference. First operand has 99 places, 98 transitions, 199 flow. Second operand 3 states and 303 transitions. [2021-11-20 06:32:46,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 107 transitions, 263 flow [2021-11-20 06:32:46,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 107 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 06:32:46,026 INFO L242 Difference]: Finished difference. Result has 102 places, 103 transitions, 248 flow [2021-11-20 06:32:46,029 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=102, PETRI_TRANSITIONS=103} [2021-11-20 06:32:46,033 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2021-11-20 06:32:46,033 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 103 transitions, 248 flow [2021-11-20 06:32:46,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2021-11-20 06:32:46,034 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:32:46,034 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:46,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:32:46,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 06:32:46,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:46,036 INFO L85 PathProgramCache]: Analyzing trace with hash 959353363, now seen corresponding path program 1 times [2021-11-20 06:32:46,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:46,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467693886] [2021-11-20 06:32:46,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:46,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:46,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:46,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:46,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467693886] [2021-11-20 06:32:46,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467693886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:46,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:46,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:32:46,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925020975] [2021-11-20 06:32:46,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:46,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:32:46,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:46,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:32:46,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:46,169 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2021-11-20 06:32:46,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 103 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2021-11-20 06:32:46,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:32:46,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2021-11-20 06:32:46,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:32:46,306 INFO L129 PetriNetUnfolder]: 79/612 cut-off events. [2021-11-20 06:32:46,306 INFO L130 PetriNetUnfolder]: For 126/159 co-relation queries the response was YES. [2021-11-20 06:32:46,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 612 events. 79/612 cut-off events. For 126/159 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3268 event pairs, 24 based on Foata normal form. 5/559 useless extension candidates. Maximal degree in co-relation 848. Up to 117 conditions per place. [2021-11-20 06:32:46,316 INFO L132 encePairwiseOnDemand]: 101/107 looper letters, 24 selfloop transitions, 7 changer transitions 0/113 dead transitions. [2021-11-20 06:32:46,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 113 transitions, 348 flow [2021-11-20 06:32:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:32:46,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:32:46,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2021-11-20 06:32:46,330 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9158878504672897 [2021-11-20 06:32:46,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2021-11-20 06:32:46,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2021-11-20 06:32:46,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:32:46,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2021-11-20 06:32:46,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2021-11-20 06:32:46,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:46,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:46,339 INFO L186 Difference]: Start difference. First operand has 102 places, 103 transitions, 248 flow. Second operand 3 states and 294 transitions. [2021-11-20 06:32:46,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 113 transitions, 348 flow [2021-11-20 06:32:46,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 113 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 06:32:46,350 INFO L242 Difference]: Finished difference. Result has 104 places, 108 transitions, 292 flow [2021-11-20 06:32:46,351 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=104, PETRI_TRANSITIONS=108} [2021-11-20 06:32:46,352 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2021-11-20 06:32:46,357 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 108 transitions, 292 flow [2021-11-20 06:32:46,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2021-11-20 06:32:46,358 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:32:46,358 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:46,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:32:46,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 06:32:46,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:46,359 INFO L85 PathProgramCache]: Analyzing trace with hash -572929362, now seen corresponding path program 1 times [2021-11-20 06:32:46,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:46,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031099736] [2021-11-20 06:32:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:46,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:46,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:46,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031099736] [2021-11-20 06:32:46,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031099736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:46,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:46,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:32:46,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784034658] [2021-11-20 06:32:46,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:46,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:32:46,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:32:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:46,479 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-11-20 06:32:46,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 108 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-11-20 06:32:46,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:32:46,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-11-20 06:32:46,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:32:46,586 INFO L129 PetriNetUnfolder]: 58/570 cut-off events. [2021-11-20 06:32:46,587 INFO L130 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2021-11-20 06:32:46,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 570 events. 58/570 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3047 event pairs, 9 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 790. Up to 62 conditions per place. [2021-11-20 06:32:46,592 INFO L132 encePairwiseOnDemand]: 104/107 looper letters, 8 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2021-11-20 06:32:46,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 111 transitions, 318 flow [2021-11-20 06:32:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:32:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:32:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2021-11-20 06:32:46,595 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9501557632398754 [2021-11-20 06:32:46,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2021-11-20 06:32:46,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2021-11-20 06:32:46,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:32:46,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2021-11-20 06:32:46,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2021-11-20 06:32:46,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:46,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:46,601 INFO L186 Difference]: Start difference. First operand has 104 places, 108 transitions, 292 flow. Second operand 3 states and 305 transitions. [2021-11-20 06:32:46,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 111 transitions, 318 flow [2021-11-20 06:32:46,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 06:32:46,613 INFO L242 Difference]: Finished difference. Result has 105 places, 109 transitions, 290 flow [2021-11-20 06:32:46,614 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=105, PETRI_TRANSITIONS=109} [2021-11-20 06:32:46,616 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 6 predicate places. [2021-11-20 06:32:46,616 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 109 transitions, 290 flow [2021-11-20 06:32:46,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-11-20 06:32:46,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:32:46,617 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:46,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:32:46,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 06:32:46,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1079248566, now seen corresponding path program 1 times [2021-11-20 06:32:46,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:46,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241602890] [2021-11-20 06:32:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:46,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:46,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:46,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241602890] [2021-11-20 06:32:46,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241602890] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:46,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175420343] [2021-11-20 06:32:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:46,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:32:46,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:32:46,737 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:32:46,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:32:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:46,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:32:46,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:46,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:47,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175420343] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:32:47,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:32:47,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-20 06:32:47,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521462113] [2021-11-20 06:32:47,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:32:47,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:32:47,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:32:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:32:47,097 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 107 [2021-11-20 06:32:47,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 109 transitions, 290 flow. Second operand has 10 states, 10 states have (on average 98.8) internal successors, (988), 10 states have internal predecessors, (988), 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) [2021-11-20 06:32:47,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:32:47,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 107 [2021-11-20 06:32:47,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:32:47,293 INFO L129 PetriNetUnfolder]: 90/862 cut-off events. [2021-11-20 06:32:47,293 INFO L130 PetriNetUnfolder]: For 80/92 co-relation queries the response was YES. [2021-11-20 06:32:47,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 862 events. 90/862 cut-off events. For 80/92 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5350 event pairs, 16 based on Foata normal form. 12/803 useless extension candidates. Maximal degree in co-relation 1211. Up to 96 conditions per place. [2021-11-20 06:32:47,301 INFO L132 encePairwiseOnDemand]: 101/107 looper letters, 8 selfloop transitions, 9 changer transitions 0/117 dead transitions. [2021-11-20 06:32:47,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 117 transitions, 342 flow [2021-11-20 06:32:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:32:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 06:32:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 892 transitions. [2021-11-20 06:32:47,305 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9262720664589823 [2021-11-20 06:32:47,306 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 892 transitions. [2021-11-20 06:32:47,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 892 transitions. [2021-11-20 06:32:47,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:32:47,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 892 transitions. [2021-11-20 06:32:47,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.11111111111111) internal successors, (892), 9 states have internal predecessors, (892), 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) [2021-11-20 06:32:47,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2021-11-20 06:32:47,315 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2021-11-20 06:32:47,315 INFO L186 Difference]: Start difference. First operand has 105 places, 109 transitions, 290 flow. Second operand 9 states and 892 transitions. [2021-11-20 06:32:47,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 117 transitions, 342 flow [2021-11-20 06:32:47,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 06:32:47,320 INFO L242 Difference]: Finished difference. Result has 115 places, 115 transitions, 338 flow [2021-11-20 06:32:47,321 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=338, PETRI_PLACES=115, PETRI_TRANSITIONS=115} [2021-11-20 06:32:47,322 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 16 predicate places. [2021-11-20 06:32:47,322 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 115 transitions, 338 flow [2021-11-20 06:32:47,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.8) internal successors, (988), 10 states have internal predecessors, (988), 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) [2021-11-20 06:32:47,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:32:47,323 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:47,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:47,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:32:47,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 06:32:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash 784528596, now seen corresponding path program 1 times [2021-11-20 06:32:47,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:47,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997333673] [2021-11-20 06:32:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:47,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:47,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:47,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997333673] [2021-11-20 06:32:47,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997333673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:47,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:47,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:32:47,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546843113] [2021-11-20 06:32:47,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:47,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:32:47,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:47,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:32:47,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:47,580 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-11-20 06:32:47,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 115 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-11-20 06:32:47,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:32:47,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-11-20 06:32:47,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:32:47,771 INFO L129 PetriNetUnfolder]: 224/1157 cut-off events. [2021-11-20 06:32:47,771 INFO L130 PetriNetUnfolder]: For 311/321 co-relation queries the response was YES. [2021-11-20 06:32:47,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 1157 events. 224/1157 cut-off events. For 311/321 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7381 event pairs, 75 based on Foata normal form. 0/1067 useless extension candidates. Maximal degree in co-relation 2164. Up to 353 conditions per place. [2021-11-20 06:32:47,782 INFO L132 encePairwiseOnDemand]: 101/107 looper letters, 28 selfloop transitions, 9 changer transitions 0/126 dead transitions. [2021-11-20 06:32:47,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 456 flow [2021-11-20 06:32:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:32:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:32:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2021-11-20 06:32:47,784 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9096573208722741 [2021-11-20 06:32:47,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2021-11-20 06:32:47,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2021-11-20 06:32:47,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:32:47,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2021-11-20 06:32:47,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2021-11-20 06:32:47,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:47,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2021-11-20 06:32:47,787 INFO L186 Difference]: Start difference. First operand has 115 places, 115 transitions, 338 flow. Second operand 3 states and 292 transitions. [2021-11-20 06:32:47,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 456 flow [2021-11-20 06:32:47,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 126 transitions, 450 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-20 06:32:47,801 INFO L242 Difference]: Finished difference. Result has 118 places, 120 transitions, 400 flow [2021-11-20 06:32:47,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=118, PETRI_TRANSITIONS=120} [2021-11-20 06:32:47,803 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 19 predicate places. [2021-11-20 06:32:47,803 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 400 flow [2021-11-20 06:32:47,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-11-20 06:32:47,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:32:47,804 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:47,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:32:47,804 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 06:32:47,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:47,805 INFO L85 PathProgramCache]: Analyzing trace with hash -237489660, now seen corresponding path program 1 times [2021-11-20 06:32:47,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:47,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107740462] [2021-11-20 06:32:47,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:47,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:32:47,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:32:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:32:47,863 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:32:47,864 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:32:47,865 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-20 06:32:47,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-20 06:32:47,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-20 06:32:47,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-11-20 06:32:47,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-11-20 06:32:47,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-20 06:32:47,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-20 06:32:47,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-20 06:32:47,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:32:47,873 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:32:47,878 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 06:32:47,878 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:32:47,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:32:47 BasicIcfg [2021-11-20 06:32:47,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:32:47,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:32:47,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:32:47,934 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:32:47,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:45" (3/4) ... [2021-11-20 06:32:47,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:32:47,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:32:47,938 INFO L158 Benchmark]: Toolchain (without parser) took 4129.04ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 67.8MB in the beginning and 82.9MB in the end (delta: -15.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-20 06:32:47,939 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:32:47,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.20ms. Allocated memory is still 111.1MB. Free memory was 67.6MB in the beginning and 76.3MB in the end (delta: -8.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:32:47,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.67ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:32:47,941 INFO L158 Benchmark]: Boogie Preprocessor took 61.83ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 72.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:32:47,941 INFO L158 Benchmark]: RCFGBuilder took 558.11ms. Allocated memory is still 111.1MB. Free memory was 72.9MB in the beginning and 59.9MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:32:47,942 INFO L158 Benchmark]: TraceAbstraction took 2704.98ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.5MB in the beginning and 82.9MB in the end (delta: -23.4MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-11-20 06:32:47,942 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 134.2MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:32:47,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.20ms. Allocated memory is still 111.1MB. Free memory was 67.6MB in the beginning and 76.3MB in the end (delta: -8.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.67ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.83ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 72.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 558.11ms. Allocated memory is still 111.1MB. Free memory was 72.9MB in the beginning and 59.9MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2704.98ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.5MB in the beginning and 82.9MB in the end (delta: -23.4MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 134.2MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 697]: Data race detected Data race detected The following path leads to a data race: [L686] 0 int glob; VAL [glob=0] [L687] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex1={1:0}] [L688] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex1={1:0}, mutex2={2:0}] [L702] 0 pthread_t id; VAL [glob=0, id={3:0}, mutex1={1:0}, mutex2={2:0}] [L703] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, id={3:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L704] CALL 0 foo(bar) [L681] 0 int i = 0; VAL [arg={0:0}, callback={-1:1}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L681] COND TRUE 0 i < 10 VAL [arg={0:0}, callback={-1:1}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L682] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, arg={0:0}, callback={-1:1}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L683] CALL 0 callback() [L691] EXPR 1 glob+1 VAL [arg={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L697] 0 glob+1 VAL [arg={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L691] EXPR 1 glob+1 VAL [arg={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L691] 1 glob=glob+1 VAL [arg={0:0}, arg={0:0}, glob=1, glob=glob+1=25, mutex1={1:0}, mutex2={2:0}] [L697] 0 glob+1 VAL [arg={0:0}, arg={0:0}, glob=1, glob=glob+1=25, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~glob~0 between C: glob=glob+1 [691] and C: glob+1 [697] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: 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: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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, 122 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: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 49 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=400occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 366 SizeOfPredicates, 2 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 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 could not prove your program: unable to determine feasibility of some traces [2021-11-20 06:32:48,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b36a13-347e-4fa2-b98b-fa4e859b8d9c/bin/uautomizer-DQz5hQGWxF/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