./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8 --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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:05:20,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:05:20,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:05:20,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:05:20,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:05:20,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:05:20,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:05:20,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:05:20,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:05:20,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:05:20,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:05:20,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:05:20,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:05:20,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:05:20,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:05:20,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:05:20,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:05:20,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:05:20,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:05:20,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:05:20,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:05:20,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:05:20,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:05:20,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:05:20,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:05:20,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:05:20,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:05:20,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:05:20,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:05:20,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:05:20,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:05:20,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:05:20,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:05:20,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:05:20,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:05:20,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:05:20,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:05:20,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:05:20,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:05:20,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:05:20,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:05:20,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:05:20,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:05:20,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:05:20,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:05:20,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:05:20,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:05:20,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:05:20,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:05:20,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:05:20,545 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:05:20,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:05:20,546 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:05:20,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:05:20,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:05:20,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:05:20,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:05:20,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:05:20,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:05:20,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:05:20,549 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:05:20,549 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:05:20,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:05:20,549 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:05:20,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:05:20,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:05:20,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:05:20,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:05:20,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:05:20,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:05:20,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:05:20,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:05:20,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:05:20,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:05:20,554 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:05:20,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:05:20,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:05:20,554 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_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2022-11-16 11:05:20,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:05:20,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:05:20,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:05:20,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:05:20,989 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:05:20,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-11-16 11:05:21,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/data/60f421828/0ef8ac749c7b4e71ba7df0ff848e2ebf/FLAGd56e9d228 [2022-11-16 11:05:21,896 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:05:21,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-11-16 11:05:21,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/data/60f421828/0ef8ac749c7b4e71ba7df0ff848e2ebf/FLAGd56e9d228 [2022-11-16 11:05:22,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/data/60f421828/0ef8ac749c7b4e71ba7df0ff848e2ebf [2022-11-16 11:05:22,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:05:22,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:05:22,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:05:22,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:05:22,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:05:22,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45dfceda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22, skipping insertion in model container [2022-11-16 11:05:22,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:05:22,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:05:22,457 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:05:22,634 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-11-16 11:05:22,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:05:22,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:05:22,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:05:22,698 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-11-16 11:05:22,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:05:22,751 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:05:22,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22 WrapperNode [2022-11-16 11:05:22,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:05:22,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:05:22,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:05:22,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:05:22,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,822 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 178 [2022-11-16 11:05:22,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:05:22,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:05:22,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:05:22,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:05:22,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:05:22,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:05:22,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:05:22,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:05:22,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:05:22,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:05:22,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:05:22,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:05:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:05:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:05:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:05:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:05:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-11-16 11:05:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-11-16 11:05:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:05:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:05:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:05:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:05:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:05:23,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:05:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-11-16 11:05:23,023 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-11-16 11:05:23,025 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:05:23,233 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:05:23,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:05:23,675 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:05:23,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:05:23,838 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:05:23,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:23 BoogieIcfgContainer [2022-11-16 11:05:23,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:05:23,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:05:23,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:05:23,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:05:23,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:05:22" (1/3) ... [2022-11-16 11:05:23,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6114e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:05:23, skipping insertion in model container [2022-11-16 11:05:23,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22" (2/3) ... [2022-11-16 11:05:23,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6114e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:05:23, skipping insertion in model container [2022-11-16 11:05:23,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:23" (3/3) ... [2022-11-16 11:05:23,868 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-11-16 11:05:23,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:05:23,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:05:23,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 11:05:23,892 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:05:24,007 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 11:05:24,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 170 transitions, 372 flow [2022-11-16 11:05:24,187 INFO L130 PetriNetUnfolder]: 2/166 cut-off events. [2022-11-16 11:05:24,187 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:05:24,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 166 events. 2/166 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 249 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-11-16 11:05:24,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 170 transitions, 372 flow [2022-11-16 11:05:24,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 152 transitions, 325 flow [2022-11-16 11:05:24,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:05:24,259 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@776194c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:05:24,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-11-16 11:05:24,280 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-16 11:05:24,281 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:05:24,281 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:24,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:24,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:24,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:24,294 INFO L85 PathProgramCache]: Analyzing trace with hash 176244933, now seen corresponding path program 1 times [2022-11-16 11:05:24,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:24,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426342593] [2022-11-16 11:05:24,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:24,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:24,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426342593] [2022-11-16 11:05:24,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426342593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:24,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:24,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:05:24,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877902172] [2022-11-16 11:05:24,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:05:24,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:05:24,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:05:24,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 170 [2022-11-16 11:05:24,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 152 transitions, 325 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:24,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 170 [2022-11-16 11:05:24,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:25,937 INFO L130 PetriNetUnfolder]: 1464/3236 cut-off events. [2022-11-16 11:05:25,937 INFO L131 PetriNetUnfolder]: For 613/613 co-relation queries the response was YES. [2022-11-16 11:05:25,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5760 conditions, 3236 events. 1464/3236 cut-off events. For 613/613 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 26114 event pairs, 1464 based on Foata normal form. 184/3072 useless extension candidates. Maximal degree in co-relation 5474. Up to 2168 conditions per place. [2022-11-16 11:05:25,992 INFO L137 encePairwiseOnDemand]: 142/170 looper letters, 23 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2022-11-16 11:05:25,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 124 transitions, 315 flow [2022-11-16 11:05:25,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:05:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:05:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 287 transitions. [2022-11-16 11:05:26,011 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8441176470588235 [2022-11-16 11:05:26,012 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 287 transitions. [2022-11-16 11:05:26,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 287 transitions. [2022-11-16 11:05:26,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:26,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 287 transitions. [2022-11-16 11:05:26,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,028 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,030 INFO L175 Difference]: Start difference. First operand has 163 places, 152 transitions, 325 flow. Second operand 2 states and 287 transitions. [2022-11-16 11:05:26,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 124 transitions, 315 flow [2022-11-16 11:05:26,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 302 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:05:26,041 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 256 flow [2022-11-16 11:05:26,044 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2022-11-16 11:05:26,048 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -32 predicate places. [2022-11-16 11:05:26,049 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 256 flow [2022-11-16 11:05:26,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:26,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:26,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:05:26,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:26,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash -461422646, now seen corresponding path program 1 times [2022-11-16 11:05:26,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072236037] [2022-11-16 11:05:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:26,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:26,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072236037] [2022-11-16 11:05:26,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072236037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:26,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:26,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:05:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696154970] [2022-11-16 11:05:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:26,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:05:26,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:26,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:05:26,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:05:26,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 170 [2022-11-16 11:05:26,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:26,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 170 [2022-11-16 11:05:26,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:29,878 INFO L130 PetriNetUnfolder]: 9120/16487 cut-off events. [2022-11-16 11:05:29,878 INFO L131 PetriNetUnfolder]: For 343/433 co-relation queries the response was YES. [2022-11-16 11:05:29,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30236 conditions, 16487 events. 9120/16487 cut-off events. For 343/433 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 144453 event pairs, 6247 based on Foata normal form. 0/14805 useless extension candidates. Maximal degree in co-relation 30233. Up to 10566 conditions per place. [2022-11-16 11:05:30,089 INFO L137 encePairwiseOnDemand]: 161/170 looper letters, 45 selfloop transitions, 8 changer transitions 0/146 dead transitions. [2022-11-16 11:05:30,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 146 transitions, 410 flow [2022-11-16 11:05:30,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:05:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:05:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-16 11:05:30,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7529411764705882 [2022-11-16 11:05:30,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-16 11:05:30,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-16 11:05:30,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:30,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-16 11:05:30,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:30,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:30,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:30,100 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 256 flow. Second operand 3 states and 384 transitions. [2022-11-16 11:05:30,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 146 transitions, 410 flow [2022-11-16 11:05:30,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 146 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:30,105 INFO L231 Difference]: Finished difference. Result has 135 places, 131 transitions, 318 flow [2022-11-16 11:05:30,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=135, PETRI_TRANSITIONS=131} [2022-11-16 11:05:30,107 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -28 predicate places. [2022-11-16 11:05:30,107 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 131 transitions, 318 flow [2022-11-16 11:05:30,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:30,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:30,108 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:30,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:05:30,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:30,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2058110516, now seen corresponding path program 1 times [2022-11-16 11:05:30,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:30,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711581886] [2022-11-16 11:05:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:30,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:30,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711581886] [2022-11-16 11:05:30,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711581886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:30,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:30,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:05:30,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063035500] [2022-11-16 11:05:30,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:30,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:05:30,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:30,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:05:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:05:30,454 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 170 [2022-11-16 11:05:30,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 131 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:30,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:30,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 170 [2022-11-16 11:05:30,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:31,648 INFO L130 PetriNetUnfolder]: 1656/4810 cut-off events. [2022-11-16 11:05:31,658 INFO L131 PetriNetUnfolder]: For 1002/1002 co-relation queries the response was YES. [2022-11-16 11:05:31,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9305 conditions, 4810 events. 1656/4810 cut-off events. For 1002/1002 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 44144 event pairs, 661 based on Foata normal form. 342/4822 useless extension candidates. Maximal degree in co-relation 9300. Up to 1449 conditions per place. [2022-11-16 11:05:31,715 INFO L137 encePairwiseOnDemand]: 164/170 looper letters, 39 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2022-11-16 11:05:31,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 145 transitions, 442 flow [2022-11-16 11:05:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:05:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:05:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-16 11:05:31,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7725490196078432 [2022-11-16 11:05:31,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-16 11:05:31,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-16 11:05:31,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:31,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-16 11:05:31,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:31,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:31,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:31,728 INFO L175 Difference]: Start difference. First operand has 135 places, 131 transitions, 318 flow. Second operand 3 states and 394 transitions. [2022-11-16 11:05:31,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 145 transitions, 442 flow [2022-11-16 11:05:31,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:05:31,759 INFO L231 Difference]: Finished difference. Result has 136 places, 130 transitions, 314 flow [2022-11-16 11:05:31,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=136, PETRI_TRANSITIONS=130} [2022-11-16 11:05:31,763 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -27 predicate places. [2022-11-16 11:05:31,763 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 130 transitions, 314 flow [2022-11-16 11:05:31,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:31,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:31,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:31,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:05:31,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:31,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:31,766 INFO L85 PathProgramCache]: Analyzing trace with hash -467603696, now seen corresponding path program 2 times [2022-11-16 11:05:31,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:31,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002919058] [2022-11-16 11:05:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:31,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:32,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002919058] [2022-11-16 11:05:32,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002919058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:32,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:32,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:32,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835091756] [2022-11-16 11:05:32,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:32,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:32,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:32,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:32,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-16 11:05:32,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 130 transitions, 314 flow. Second operand has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:32,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:32,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-16 11:05:32,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:32,882 INFO L130 PetriNetUnfolder]: 720/2793 cut-off events. [2022-11-16 11:05:32,882 INFO L131 PetriNetUnfolder]: For 1489/1492 co-relation queries the response was YES. [2022-11-16 11:05:32,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5179 conditions, 2793 events. 720/2793 cut-off events. For 1489/1492 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 24656 event pairs, 162 based on Foata normal form. 237/2834 useless extension candidates. Maximal degree in co-relation 5173. Up to 590 conditions per place. [2022-11-16 11:05:32,915 INFO L137 encePairwiseOnDemand]: 160/170 looper letters, 66 selfloop transitions, 16 changer transitions 0/183 dead transitions. [2022-11-16 11:05:32,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 646 flow [2022-11-16 11:05:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:05:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:05:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 660 transitions. [2022-11-16 11:05:32,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7764705882352941 [2022-11-16 11:05:32,920 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 660 transitions. [2022-11-16 11:05:32,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 660 transitions. [2022-11-16 11:05:32,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:32,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 660 transitions. [2022-11-16 11:05:32,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:32,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:32,929 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:32,929 INFO L175 Difference]: Start difference. First operand has 136 places, 130 transitions, 314 flow. Second operand 5 states and 660 transitions. [2022-11-16 11:05:32,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 646 flow [2022-11-16 11:05:32,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 183 transitions, 630 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:05:32,938 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 401 flow [2022-11-16 11:05:32,939 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=401, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2022-11-16 11:05:32,940 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -23 predicate places. [2022-11-16 11:05:32,940 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 401 flow [2022-11-16 11:05:32,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:32,941 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:32,942 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:32,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:05:32,942 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:32,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash 830927776, now seen corresponding path program 1 times [2022-11-16 11:05:32,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:32,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579731079] [2022-11-16 11:05:32,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:32,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:33,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:33,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579731079] [2022-11-16 11:05:33,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579731079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:33,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:33,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:05:33,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107085523] [2022-11-16 11:05:33,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:33,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:05:33,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:05:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:05:33,011 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 170 [2022-11-16 11:05:33,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:33,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:33,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 170 [2022-11-16 11:05:33,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:33,753 INFO L130 PetriNetUnfolder]: 1138/3213 cut-off events. [2022-11-16 11:05:33,753 INFO L131 PetriNetUnfolder]: For 1695/1726 co-relation queries the response was YES. [2022-11-16 11:05:33,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7162 conditions, 3213 events. 1138/3213 cut-off events. For 1695/1726 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 28384 event pairs, 745 based on Foata normal form. 11/2971 useless extension candidates. Maximal degree in co-relation 7154. Up to 1953 conditions per place. [2022-11-16 11:05:33,794 INFO L137 encePairwiseOnDemand]: 162/170 looper letters, 56 selfloop transitions, 7 changer transitions 0/157 dead transitions. [2022-11-16 11:05:33,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 157 transitions, 575 flow [2022-11-16 11:05:33,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:05:33,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:05:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2022-11-16 11:05:33,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7392156862745098 [2022-11-16 11:05:33,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2022-11-16 11:05:33,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2022-11-16 11:05:33,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:33,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2022-11-16 11:05:33,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:33,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:33,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:33,803 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 401 flow. Second operand 3 states and 377 transitions. [2022-11-16 11:05:33,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 157 transitions, 575 flow [2022-11-16 11:05:33,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 157 transitions, 571 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:33,815 INFO L231 Difference]: Finished difference. Result has 144 places, 148 transitions, 459 flow [2022-11-16 11:05:33,816 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=459, PETRI_PLACES=144, PETRI_TRANSITIONS=148} [2022-11-16 11:05:33,819 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -19 predicate places. [2022-11-16 11:05:33,820 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 148 transitions, 459 flow [2022-11-16 11:05:33,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:33,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:33,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:33,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:05:33,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:33,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:33,823 INFO L85 PathProgramCache]: Analyzing trace with hash 468077500, now seen corresponding path program 1 times [2022-11-16 11:05:33,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:33,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37632323] [2022-11-16 11:05:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:33,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:34,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:34,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37632323] [2022-11-16 11:05:34,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37632323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:34,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:34,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058565540] [2022-11-16 11:05:34,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:34,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:34,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:34,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:34,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-16 11:05:34,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 148 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:34,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-16 11:05:34,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:37,498 INFO L130 PetriNetUnfolder]: 7736/14508 cut-off events. [2022-11-16 11:05:37,498 INFO L131 PetriNetUnfolder]: For 16824/17143 co-relation queries the response was YES. [2022-11-16 11:05:37,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39222 conditions, 14508 events. 7736/14508 cut-off events. For 16824/17143 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 116816 event pairs, 878 based on Foata normal form. 18/13871 useless extension candidates. Maximal degree in co-relation 39212. Up to 7127 conditions per place. [2022-11-16 11:05:37,698 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 209 selfloop transitions, 4 changer transitions 1/291 dead transitions. [2022-11-16 11:05:37,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 291 transitions, 1637 flow [2022-11-16 11:05:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2022-11-16 11:05:37,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6303921568627451 [2022-11-16 11:05:37,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 643 transitions. [2022-11-16 11:05:37,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 643 transitions. [2022-11-16 11:05:37,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:37,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 643 transitions. [2022-11-16 11:05:37,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:37,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:37,713 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:37,713 INFO L175 Difference]: Start difference. First operand has 144 places, 148 transitions, 459 flow. Second operand 6 states and 643 transitions. [2022-11-16 11:05:37,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 291 transitions, 1637 flow [2022-11-16 11:05:37,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 291 transitions, 1551 flow, removed 20 selfloop flow, removed 2 redundant places. [2022-11-16 11:05:37,735 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 441 flow [2022-11-16 11:05:37,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2022-11-16 11:05:37,739 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -17 predicate places. [2022-11-16 11:05:37,739 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 441 flow [2022-11-16 11:05:37,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:37,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:37,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:37,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:05:37,741 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:37,742 INFO L85 PathProgramCache]: Analyzing trace with hash 800558043, now seen corresponding path program 1 times [2022-11-16 11:05:37,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:37,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132785378] [2022-11-16 11:05:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:37,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:38,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132785378] [2022-11-16 11:05:38,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132785378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:38,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:38,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:05:38,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361774231] [2022-11-16 11:05:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:38,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:38,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:38,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:38,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:38,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-16 11:05:38,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:38,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:38,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-16 11:05:38,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:39,061 INFO L130 PetriNetUnfolder]: 834/3106 cut-off events. [2022-11-16 11:05:39,061 INFO L131 PetriNetUnfolder]: For 2444/2457 co-relation queries the response was YES. [2022-11-16 11:05:39,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6808 conditions, 3106 events. 834/3106 cut-off events. For 2444/2457 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 28130 event pairs, 138 based on Foata normal form. 68/2928 useless extension candidates. Maximal degree in co-relation 6798. Up to 453 conditions per place. [2022-11-16 11:05:39,093 INFO L137 encePairwiseOnDemand]: 160/170 looper letters, 77 selfloop transitions, 22 changer transitions 0/200 dead transitions. [2022-11-16 11:05:39,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 200 transitions, 846 flow [2022-11-16 11:05:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 787 transitions. [2022-11-16 11:05:39,098 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7715686274509804 [2022-11-16 11:05:39,098 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 787 transitions. [2022-11-16 11:05:39,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 787 transitions. [2022-11-16 11:05:39,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:39,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 787 transitions. [2022-11-16 11:05:39,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,106 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,106 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 441 flow. Second operand 6 states and 787 transitions. [2022-11-16 11:05:39,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 200 transitions, 846 flow [2022-11-16 11:05:39,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 200 transitions, 839 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:39,115 INFO L231 Difference]: Finished difference. Result has 147 places, 152 transitions, 524 flow [2022-11-16 11:05:39,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=147, PETRI_TRANSITIONS=152} [2022-11-16 11:05:39,116 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -16 predicate places. [2022-11-16 11:05:39,117 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 152 transitions, 524 flow [2022-11-16 11:05:39,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:39,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:39,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:05:39,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:39,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:39,120 INFO L85 PathProgramCache]: Analyzing trace with hash -866678061, now seen corresponding path program 2 times [2022-11-16 11:05:39,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:39,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263354046] [2022-11-16 11:05:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:39,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:39,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:39,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263354046] [2022-11-16 11:05:39,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263354046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:39,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:39,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:05:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978524286] [2022-11-16 11:05:39,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:39,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:39,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:39,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:39,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-16 11:05:39,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 152 transitions, 524 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:39,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-16 11:05:39,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:40,013 INFO L130 PetriNetUnfolder]: 502/2098 cut-off events. [2022-11-16 11:05:40,014 INFO L131 PetriNetUnfolder]: For 2546/2547 co-relation queries the response was YES. [2022-11-16 11:05:40,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4776 conditions, 2098 events. 502/2098 cut-off events. For 2546/2547 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 17208 event pairs, 258 based on Foata normal form. 56/1985 useless extension candidates. Maximal degree in co-relation 4765. Up to 700 conditions per place. [2022-11-16 11:05:40,036 INFO L137 encePairwiseOnDemand]: 160/170 looper letters, 43 selfloop transitions, 22 changer transitions 0/160 dead transitions. [2022-11-16 11:05:40,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 160 transitions, 665 flow [2022-11-16 11:05:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:40,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 759 transitions. [2022-11-16 11:05:40,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7441176470588236 [2022-11-16 11:05:40,040 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 759 transitions. [2022-11-16 11:05:40,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 759 transitions. [2022-11-16 11:05:40,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:40,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 759 transitions. [2022-11-16 11:05:40,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,047 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,048 INFO L175 Difference]: Start difference. First operand has 147 places, 152 transitions, 524 flow. Second operand 6 states and 759 transitions. [2022-11-16 11:05:40,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 160 transitions, 665 flow [2022-11-16 11:05:40,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 160 transitions, 610 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-11-16 11:05:40,059 INFO L231 Difference]: Finished difference. Result has 144 places, 134 transitions, 435 flow [2022-11-16 11:05:40,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=435, PETRI_PLACES=144, PETRI_TRANSITIONS=134} [2022-11-16 11:05:40,062 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -19 predicate places. [2022-11-16 11:05:40,063 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 134 transitions, 435 flow [2022-11-16 11:05:40,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:40,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:40,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:05:40,065 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:40,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:40,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1413842611, now seen corresponding path program 1 times [2022-11-16 11:05:40,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:40,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636884258] [2022-11-16 11:05:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:40,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:40,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:40,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636884258] [2022-11-16 11:05:40,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636884258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:40,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:40,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:40,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965810012] [2022-11-16 11:05:40,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:40,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:40,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:40,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:40,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:40,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-16 11:05:40,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 134 transitions, 435 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:40,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-16 11:05:40,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:43,030 INFO L130 PetriNetUnfolder]: 4449/9435 cut-off events. [2022-11-16 11:05:43,030 INFO L131 PetriNetUnfolder]: For 13223/13225 co-relation queries the response was YES. [2022-11-16 11:05:43,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25712 conditions, 9435 events. 4449/9435 cut-off events. For 13223/13225 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 75847 event pairs, 2636 based on Foata normal form. 0/9119 useless extension candidates. Maximal degree in co-relation 25701. Up to 5075 conditions per place. [2022-11-16 11:05:43,124 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 162 selfloop transitions, 4 changer transitions 0/237 dead transitions. [2022-11-16 11:05:43,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 237 transitions, 1477 flow [2022-11-16 11:05:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:43,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2022-11-16 11:05:43,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6205882352941177 [2022-11-16 11:05:43,129 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 633 transitions. [2022-11-16 11:05:43,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 633 transitions. [2022-11-16 11:05:43,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:43,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 633 transitions. [2022-11-16 11:05:43,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:43,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:43,136 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:43,136 INFO L175 Difference]: Start difference. First operand has 144 places, 134 transitions, 435 flow. Second operand 6 states and 633 transitions. [2022-11-16 11:05:43,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 237 transitions, 1477 flow [2022-11-16 11:05:43,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 237 transitions, 1321 flow, removed 30 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:43,164 INFO L231 Difference]: Finished difference. Result has 144 places, 133 transitions, 397 flow [2022-11-16 11:05:43,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=144, PETRI_TRANSITIONS=133} [2022-11-16 11:05:43,166 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -19 predicate places. [2022-11-16 11:05:43,166 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 133 transitions, 397 flow [2022-11-16 11:05:43,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:43,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:43,167 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-11-16 11:05:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:05:43,168 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:43,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1245432328, now seen corresponding path program 1 times [2022-11-16 11:05:43,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:43,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019940936] [2022-11-16 11:05:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:43,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:43,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019940936] [2022-11-16 11:05:43,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019940936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:43,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:43,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:43,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859536554] [2022-11-16 11:05:43,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:43,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:43,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:43,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:43,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:43,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-16 11:05:43,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 397 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:43,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:43,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-16 11:05:43,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:45,420 INFO L130 PetriNetUnfolder]: 4239/9291 cut-off events. [2022-11-16 11:05:45,421 INFO L131 PetriNetUnfolder]: For 10358/10361 co-relation queries the response was YES. [2022-11-16 11:05:45,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24382 conditions, 9291 events. 4239/9291 cut-off events. For 10358/10361 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 75933 event pairs, 3530 based on Foata normal form. 0/9004 useless extension candidates. Maximal degree in co-relation 24372. Up to 6765 conditions per place. [2022-11-16 11:05:45,527 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 109 selfloop transitions, 4 changer transitions 0/184 dead transitions. [2022-11-16 11:05:45,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 184 transitions, 897 flow [2022-11-16 11:05:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2022-11-16 11:05:45,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.596078431372549 [2022-11-16 11:05:45,531 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2022-11-16 11:05:45,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2022-11-16 11:05:45,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:45,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2022-11-16 11:05:45,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:45,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:45,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:45,538 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 397 flow. Second operand 6 states and 608 transitions. [2022-11-16 11:05:45,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 184 transitions, 897 flow [2022-11-16 11:05:45,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 184 transitions, 890 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:45,576 INFO L231 Difference]: Finished difference. Result has 144 places, 132 transitions, 396 flow [2022-11-16 11:05:45,577 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=144, PETRI_TRANSITIONS=132} [2022-11-16 11:05:45,579 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -19 predicate places. [2022-11-16 11:05:45,579 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 132 transitions, 396 flow [2022-11-16 11:05:45,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:45,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:45,580 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:45,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:05:45,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:05:45,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:45,581 INFO L85 PathProgramCache]: Analyzing trace with hash -207217906, now seen corresponding path program 1 times [2022-11-16 11:05:45,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:45,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109792216] [2022-11-16 11:05:45,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:45,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:46,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:46,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109792216] [2022-11-16 11:05:46,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109792216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:46,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:46,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:46,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588705109] [2022-11-16 11:05:46,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:46,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:46,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:46,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-16 11:05:46,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 132 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:46,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:46,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-16 11:05:46,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:47,879 INFO L130 PetriNetUnfolder]: 4224/9310 cut-off events. [2022-11-16 11:05:47,879 INFO L131 PetriNetUnfolder]: For 10260/10263 co-relation queries the response was YES. [2022-11-16 11:05:47,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24055 conditions, 9310 events. 4224/9310 cut-off events. For 10260/10263 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 76805 event pairs, 3730 based on Foata normal form. 20/9056 useless extension candidates. Maximal degree in co-relation 24045. Up to 7219 conditions per place. [2022-11-16 11:05:47,941 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2022-11-16 11:05:47,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 167 transitions, 798 flow [2022-11-16 11:05:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2022-11-16 11:05:47,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5872549019607843 [2022-11-16 11:05:47,945 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2022-11-16 11:05:47,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2022-11-16 11:05:47,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:47,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2022-11-16 11:05:47,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:47,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:47,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:47,952 INFO L175 Difference]: Start difference. First operand has 144 places, 132 transitions, 396 flow. Second operand 6 states and 599 transitions. [2022-11-16 11:05:47,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 167 transitions, 798 flow [2022-11-16 11:05:47,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 167 transitions, 791 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:47,968 INFO L231 Difference]: Finished difference. Result has 144 places, 0 transitions, 0 flow [2022-11-16 11:05:47,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=144, PETRI_TRANSITIONS=0} [2022-11-16 11:05:47,969 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -19 predicate places. [2022-11-16 11:05:47,969 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 0 transitions, 0 flow [2022-11-16 11:05:47,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:47,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2022-11-16 11:05:47,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2022-11-16 11:05:47,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2022-11-16 11:05:47,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2022-11-16 11:05:47,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2022-11-16 11:05:47,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2022-11-16 11:05:47,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2022-11-16 11:05:47,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2022-11-16 11:05:47,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2022-11-16 11:05:47,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2022-11-16 11:05:47,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2022-11-16 11:05:47,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2022-11-16 11:05:47,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2022-11-16 11:05:47,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2022-11-16 11:05:47,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2022-11-16 11:05:47,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2022-11-16 11:05:47,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2022-11-16 11:05:47,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2022-11-16 11:05:47,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2022-11-16 11:05:47,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2022-11-16 11:05:47,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2022-11-16 11:05:47,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2022-11-16 11:05:47,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2022-11-16 11:05:47,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2022-11-16 11:05:47,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2022-11-16 11:05:47,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2022-11-16 11:05:47,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2022-11-16 11:05:47,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2022-11-16 11:05:47,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2022-11-16 11:05:47,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2022-11-16 11:05:47,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2022-11-16 11:05:47,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2022-11-16 11:05:47,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2022-11-16 11:05:47,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2022-11-16 11:05:47,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2022-11-16 11:05:47,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2022-11-16 11:05:47,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2022-11-16 11:05:47,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2022-11-16 11:05:47,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2022-11-16 11:05:47,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2022-11-16 11:05:47,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2022-11-16 11:05:47,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2022-11-16 11:05:47,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2022-11-16 11:05:47,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2022-11-16 11:05:47,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2022-11-16 11:05:47,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2022-11-16 11:05:47,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2022-11-16 11:05:47,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2022-11-16 11:05:47,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2022-11-16 11:05:47,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2022-11-16 11:05:47,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:05:47,986 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:47,994 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:05:47,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:05:48,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:05:48 BasicIcfg [2022-11-16 11:05:48,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:05:48,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:05:48,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:05:48,002 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:05:48,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:23" (3/4) ... [2022-11-16 11:05:48,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:05:48,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2022-11-16 11:05:48,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2022-11-16 11:05:48,020 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-16 11:05:48,020 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:05:48,020 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:05:48,021 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:05:48,075 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:05:48,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:05:48,077 INFO L158 Benchmark]: Toolchain (without parser) took 25958.67ms. Allocated memory was 130.0MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 93.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 779.3MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,077 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory was 101.5MB in the beginning and 101.4MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:05:48,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.66ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 94.1MB in the end (delta: -935.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.42ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 91.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,078 INFO L158 Benchmark]: Boogie Preprocessor took 89.65ms. Allocated memory is still 130.0MB. Free memory was 91.3MB in the beginning and 89.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,079 INFO L158 Benchmark]: RCFGBuilder took 926.96ms. Allocated memory is still 130.0MB. Free memory was 89.9MB in the beginning and 62.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,079 INFO L158 Benchmark]: TraceAbstraction took 24157.18ms. Allocated memory was 130.0MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 62.0MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 748.2MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,080 INFO L158 Benchmark]: Witness Printer took 74.86ms. Allocated memory is still 2.4GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:05:48,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory was 101.5MB in the beginning and 101.4MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.66ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 94.1MB in the end (delta: -935.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.42ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 91.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.65ms. Allocated memory is still 130.0MB. Free memory was 91.3MB in the beginning and 89.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 926.96ms. Allocated memory is still 130.0MB. Free memory was 89.9MB in the beginning and 62.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 24157.18ms. Allocated memory was 130.0MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 62.0MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 748.2MB. Max. memory is 16.1GB. * Witness Printer took 74.86ms. Allocated memory is still 2.4GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 211 locations, 50 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: 23.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 429 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 429 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 147 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1420 IncrementalHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 147 mSolverCounterUnsat, 72 mSDtfsCounter, 1420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=524occurred in iteration=7, InterpolantAutomatonStates: 52, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 599 ConstructedInterpolants, 0 QuantifiedInterpolants, 1671 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:05:48,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e60a0af-568d-42ae-8392-4713d52a2765/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE