./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro --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 e74a9d887f2b5ed1ee32deb282db19752d3db312511ed38f97d9f22bdf2fecb9 --- 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-8393723 [2022-11-18 19:42:56,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:42:56,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:42:56,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:42:56,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:42:56,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:42:56,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:42:56,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:42:56,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:42:56,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:42:56,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:42:56,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:42:56,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:42:56,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:42:56,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:42:56,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:42:56,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:42:56,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:42:56,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:42:56,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:42:56,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:42:56,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:42:56,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:42:56,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:42:56,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:42:56,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:42:56,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:42:56,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:42:56,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:42:56,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:42:56,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:42:56,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:42:56,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:42:56,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:42:56,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:42:56,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:42:56,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:42:56,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:42:56,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:42:56,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:42:56,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:42:56,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:42:56,890 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:42:56,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:42:56,891 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:42:56,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:42:56,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:42:56,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:42:56,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:42:56,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:42:56,893 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:42:56,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:42:56,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:42:56,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:42:56,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:42:56,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:42:56,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:42:56,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:42:56,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:42:56,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:42:56,896 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:42:56,896 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:42:56,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:42:56,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:42:56,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:42:56,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:42:56,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:42:56,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:42:56,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:42:56,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:42:56,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:42:56,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:42:56,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:42:56,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:42:56,899 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:42:56,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:42:56,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:42:56,899 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_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e74a9d887f2b5ed1ee32deb282db19752d3db312511ed38f97d9f22bdf2fecb9 [2022-11-18 19:42:57,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:42:57,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:42:57,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:42:57,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:42:57,347 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:42:57,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i [2022-11-18 19:42:57,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/data/6a337f7da/c7620bce60684790bfd19c946857a0a9/FLAG871f8f9b7 [2022-11-18 19:42:58,153 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:42:58,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i [2022-11-18 19:42:58,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/data/6a337f7da/c7620bce60684790bfd19c946857a0a9/FLAG871f8f9b7 [2022-11-18 19:42:58,453 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/data/6a337f7da/c7620bce60684790bfd19c946857a0a9 [2022-11-18 19:42:58,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:42:58,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:42:58,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:42:58,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:42:58,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:42:58,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:42:58" (1/1) ... [2022-11-18 19:42:58,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9438395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:58, skipping insertion in model container [2022-11-18 19:42:58,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:42:58" (1/1) ... [2022-11-18 19:42:58,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:42:58,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:42:59,075 WARN L234 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_26248bdf-cbb6-4244-83ff-96cd04227ad5/sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i[30416,30429] [2022-11-18 19:42:59,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:42:59,110 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:42:59,179 WARN L234 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_26248bdf-cbb6-4244-83ff-96cd04227ad5/sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i[30416,30429] [2022-11-18 19:42:59,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:42:59,260 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:42:59,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59 WrapperNode [2022-11-18 19:42:59,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:42:59,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:42:59,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:42:59,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:42:59,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,366 INFO L138 Inliner]: procedures = 171, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 167 [2022-11-18 19:42:59,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:42:59,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:42:59,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:42:59,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:42:59,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:42:59,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:42:59,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:42:59,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:42:59,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (1/1) ... [2022-11-18 19:42:59,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:42:59,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:59,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:42:59,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:42:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:42:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:42:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:42:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-11-18 19:42:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-11-18 19:42:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:42:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:42:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:42:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:42:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:42:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-11-18 19:42:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-11-18 19:42:59,562 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:42:59,793 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:42:59,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:43:00,145 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:43:00,348 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:43:00,354 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:43:00,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:43:00 BoogieIcfgContainer [2022-11-18 19:43:00,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:43:00,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:43:00,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:43:00,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:43:00,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:42:58" (1/3) ... [2022-11-18 19:43:00,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bb8f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:43:00, skipping insertion in model container [2022-11-18 19:43:00,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:59" (2/3) ... [2022-11-18 19:43:00,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bb8f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:43:00, skipping insertion in model container [2022-11-18 19:43:00,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:43:00" (3/3) ... [2022-11-18 19:43:00,373 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1b.i [2022-11-18 19:43:00,388 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:43:00,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:43:00,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 19:43:00,403 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:43:00,514 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 19:43:00,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 196 transitions, 424 flow [2022-11-18 19:43:00,756 INFO L130 PetriNetUnfolder]: 2/192 cut-off events. [2022-11-18 19:43:00,757 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:43:00,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 192 events. 2/192 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 358 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2022-11-18 19:43:00,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 196 transitions, 424 flow [2022-11-18 19:43:00,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 178 transitions, 377 flow [2022-11-18 19:43:00,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:43:00,799 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;@36854d6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:43:00,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-11-18 19:43:00,810 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-18 19:43:00,810 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:43:00,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:00,811 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] [2022-11-18 19:43:00,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:00,819 INFO L85 PathProgramCache]: Analyzing trace with hash 842558235, now seen corresponding path program 1 times [2022-11-18 19:43:00,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:00,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011835595] [2022-11-18 19:43:00,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:00,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:01,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:01,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011835595] [2022-11-18 19:43:01,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011835595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:01,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:01,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:43:01,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236592850] [2022-11-18 19:43:01,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:01,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:43:01,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:01,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:43:01,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:43:01,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 196 [2022-11-18 19:43:01,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 178 transitions, 377 flow. Second operand has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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) [2022-11-18 19:43:01,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:01,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 196 [2022-11-18 19:43:01,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:01,776 INFO L130 PetriNetUnfolder]: 119/1187 cut-off events. [2022-11-18 19:43:01,777 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-11-18 19:43:01,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 1187 events. 119/1187 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8202 event pairs, 119 based on Foata normal form. 28/1008 useless extension candidates. Maximal degree in co-relation 1267. Up to 203 conditions per place. [2022-11-18 19:43:01,799 INFO L137 encePairwiseOnDemand]: 178/196 looper letters, 13 selfloop transitions, 0 changer transitions 0/158 dead transitions. [2022-11-18 19:43:01,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 158 transitions, 363 flow [2022-11-18 19:43:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:43:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 19:43:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 355 transitions. [2022-11-18 19:43:01,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9056122448979592 [2022-11-18 19:43:01,828 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 355 transitions. [2022-11-18 19:43:01,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 355 transitions. [2022-11-18 19:43:01,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:01,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 355 transitions. [2022-11-18 19:43:01,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 177.5) internal successors, (355), 2 states have internal predecessors, (355), 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) [2022-11-18 19:43:01,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2022-11-18 19:43:01,852 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2022-11-18 19:43:01,855 INFO L175 Difference]: Start difference. First operand has 189 places, 178 transitions, 377 flow. Second operand 2 states and 355 transitions. [2022-11-18 19:43:01,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 158 transitions, 363 flow [2022-11-18 19:43:01,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 158 transitions, 350 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-18 19:43:01,872 INFO L231 Difference]: Finished difference. Result has 165 places, 158 transitions, 324 flow [2022-11-18 19:43:01,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=324, PETRI_PLACES=165, PETRI_TRANSITIONS=158} [2022-11-18 19:43:01,881 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -24 predicate places. [2022-11-18 19:43:01,883 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 158 transitions, 324 flow [2022-11-18 19:43:01,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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) [2022-11-18 19:43:01,885 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:01,885 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] [2022-11-18 19:43:01,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:43:01,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:01,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:01,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1016769568, now seen corresponding path program 1 times [2022-11-18 19:43:01,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:01,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479583840] [2022-11-18 19:43:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:01,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:02,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:02,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479583840] [2022-11-18 19:43:02,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479583840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:02,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:02,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:43:02,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265117024] [2022-11-18 19:43:02,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:02,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:02,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:02,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:02,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 196 [2022-11-18 19:43:02,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 158 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2022-11-18 19:43:02,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:02,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 196 [2022-11-18 19:43:02,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:07,015 INFO L130 PetriNetUnfolder]: 11193/23638 cut-off events. [2022-11-18 19:43:07,015 INFO L131 PetriNetUnfolder]: For 459/459 co-relation queries the response was YES. [2022-11-18 19:43:07,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40256 conditions, 23638 events. 11193/23638 cut-off events. For 459/459 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 239162 event pairs, 7860 based on Foata normal form. 0/18379 useless extension candidates. Maximal degree in co-relation 40253. Up to 12581 conditions per place. [2022-11-18 19:43:07,334 INFO L137 encePairwiseOnDemand]: 187/196 looper letters, 50 selfloop transitions, 8 changer transitions 0/183 dead transitions. [2022-11-18 19:43:07,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 183 transitions, 494 flow [2022-11-18 19:43:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2022-11-18 19:43:07,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8248299319727891 [2022-11-18 19:43:07,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2022-11-18 19:43:07,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2022-11-18 19:43:07,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:07,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2022-11-18 19:43:07,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2022-11-18 19:43:07,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:07,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:07,344 INFO L175 Difference]: Start difference. First operand has 165 places, 158 transitions, 324 flow. Second operand 3 states and 485 transitions. [2022-11-18 19:43:07,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 183 transitions, 494 flow [2022-11-18 19:43:07,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 183 transitions, 494 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:43:07,350 INFO L231 Difference]: Finished difference. Result has 169 places, 165 transitions, 386 flow [2022-11-18 19:43:07,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=169, PETRI_TRANSITIONS=165} [2022-11-18 19:43:07,352 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -20 predicate places. [2022-11-18 19:43:07,352 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 165 transitions, 386 flow [2022-11-18 19:43:07,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2022-11-18 19:43:07,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:07,354 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] [2022-11-18 19:43:07,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:43:07,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1778422134, now seen corresponding path program 1 times [2022-11-18 19:43:07,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:07,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560728140] [2022-11-18 19:43:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:07,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:07,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560728140] [2022-11-18 19:43:07,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560728140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:07,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:07,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:43:07,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784356945] [2022-11-18 19:43:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:07,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:07,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:07,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 196 [2022-11-18 19:43:07,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 165 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2022-11-18 19:43:07,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:07,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 196 [2022-11-18 19:43:07,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:09,317 INFO L130 PetriNetUnfolder]: 2763/9036 cut-off events. [2022-11-18 19:43:09,318 INFO L131 PetriNetUnfolder]: For 299/337 co-relation queries the response was YES. [2022-11-18 19:43:09,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14270 conditions, 9036 events. 2763/9036 cut-off events. For 299/337 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 96389 event pairs, 1892 based on Foata normal form. 0/6964 useless extension candidates. Maximal degree in co-relation 14265. Up to 2812 conditions per place. [2022-11-18 19:43:09,438 INFO L137 encePairwiseOnDemand]: 188/196 looper letters, 27 selfloop transitions, 7 changer transitions 0/178 dead transitions. [2022-11-18 19:43:09,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 178 transitions, 484 flow [2022-11-18 19:43:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:09,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2022-11-18 19:43:09,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8452380952380952 [2022-11-18 19:43:09,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2022-11-18 19:43:09,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2022-11-18 19:43:09,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:09,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2022-11-18 19:43:09,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2022-11-18 19:43:09,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:09,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:09,452 INFO L175 Difference]: Start difference. First operand has 169 places, 165 transitions, 386 flow. Second operand 3 states and 497 transitions. [2022-11-18 19:43:09,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 178 transitions, 484 flow [2022-11-18 19:43:09,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 178 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:43:09,468 INFO L231 Difference]: Finished difference. Result has 171 places, 171 transitions, 424 flow [2022-11-18 19:43:09,469 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=171, PETRI_TRANSITIONS=171} [2022-11-18 19:43:09,472 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -18 predicate places. [2022-11-18 19:43:09,472 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 171 transitions, 424 flow [2022-11-18 19:43:09,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2022-11-18 19:43:09,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:09,473 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] [2022-11-18 19:43:09,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:43:09,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:09,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:09,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1739064756, now seen corresponding path program 1 times [2022-11-18 19:43:09,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:09,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020994029] [2022-11-18 19:43:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:09,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:09,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:09,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020994029] [2022-11-18 19:43:09,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020994029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:09,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:09,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:43:09,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524858260] [2022-11-18 19:43:09,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:09,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:09,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:09,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:09,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2022-11-18 19:43:09,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 171 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2022-11-18 19:43:09,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:09,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2022-11-18 19:43:09,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:16,993 INFO L130 PetriNetUnfolder]: 19347/52753 cut-off events. [2022-11-18 19:43:16,993 INFO L131 PetriNetUnfolder]: For 12396/15297 co-relation queries the response was YES. [2022-11-18 19:43:17,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98547 conditions, 52753 events. 19347/52753 cut-off events. For 12396/15297 co-relation queries the response was YES. Maximal size of possible extension queue 2059. Compared 690170 event pairs, 6362 based on Foata normal form. 32/42412 useless extension candidates. Maximal degree in co-relation 98541. Up to 16207 conditions per place. [2022-11-18 19:43:17,736 INFO L137 encePairwiseOnDemand]: 182/196 looper letters, 59 selfloop transitions, 15 changer transitions 0/205 dead transitions. [2022-11-18 19:43:17,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 205 transitions, 692 flow [2022-11-18 19:43:17,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 492 transitions. [2022-11-18 19:43:17,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2022-11-18 19:43:17,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 492 transitions. [2022-11-18 19:43:17,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 492 transitions. [2022-11-18 19:43:17,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:17,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 492 transitions. [2022-11-18 19:43:17,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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) [2022-11-18 19:43:17,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:17,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:17,750 INFO L175 Difference]: Start difference. First operand has 171 places, 171 transitions, 424 flow. Second operand 3 states and 492 transitions. [2022-11-18 19:43:17,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 205 transitions, 692 flow [2022-11-18 19:43:17,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 205 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:43:17,839 INFO L231 Difference]: Finished difference. Result has 173 places, 186 transitions, 560 flow [2022-11-18 19:43:17,841 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=173, PETRI_TRANSITIONS=186} [2022-11-18 19:43:17,843 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -16 predicate places. [2022-11-18 19:43:17,843 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 186 transitions, 560 flow [2022-11-18 19:43:17,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2022-11-18 19:43:17,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:17,849 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] [2022-11-18 19:43:17,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:43:17,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1112516969, now seen corresponding path program 1 times [2022-11-18 19:43:17,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:17,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936380731] [2022-11-18 19:43:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:18,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:18,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936380731] [2022-11-18 19:43:18,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936380731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:18,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:18,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:43:18,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504235207] [2022-11-18 19:43:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:18,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:43:18,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:43:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:43:18,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 196 [2022-11-18 19:43:18,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 186 transitions, 560 flow. Second operand has 5 states, 5 states have (on average 159.2) internal successors, (796), 5 states have internal predecessors, (796), 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) [2022-11-18 19:43:18,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:18,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 196 [2022-11-18 19:43:18,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:23,303 INFO L130 PetriNetUnfolder]: 7976/39491 cut-off events. [2022-11-18 19:43:23,304 INFO L131 PetriNetUnfolder]: For 10700/15455 co-relation queries the response was YES. [2022-11-18 19:43:23,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66626 conditions, 39491 events. 7976/39491 cut-off events. For 10700/15455 co-relation queries the response was YES. Maximal size of possible extension queue 1621. Compared 602426 event pairs, 1502 based on Foata normal form. 444/33680 useless extension candidates. Maximal degree in co-relation 66619. Up to 5407 conditions per place. [2022-11-18 19:43:23,654 INFO L137 encePairwiseOnDemand]: 186/196 looper letters, 40 selfloop transitions, 24 changer transitions 0/230 dead transitions. [2022-11-18 19:43:23,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 230 transitions, 824 flow [2022-11-18 19:43:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:43:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:43:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 846 transitions. [2022-11-18 19:43:23,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.863265306122449 [2022-11-18 19:43:23,658 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 846 transitions. [2022-11-18 19:43:23,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 846 transitions. [2022-11-18 19:43:23,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:23,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 846 transitions. [2022-11-18 19:43:23,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 169.2) internal successors, (846), 5 states have internal predecessors, (846), 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) [2022-11-18 19:43:23,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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) [2022-11-18 19:43:23,666 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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) [2022-11-18 19:43:23,666 INFO L175 Difference]: Start difference. First operand has 173 places, 186 transitions, 560 flow. Second operand 5 states and 846 transitions. [2022-11-18 19:43:23,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 230 transitions, 824 flow [2022-11-18 19:43:23,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 230 transitions, 794 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:43:23,698 INFO L231 Difference]: Finished difference. Result has 177 places, 207 transitions, 698 flow [2022-11-18 19:43:23,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=698, PETRI_PLACES=177, PETRI_TRANSITIONS=207} [2022-11-18 19:43:23,699 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -12 predicate places. [2022-11-18 19:43:23,700 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 207 transitions, 698 flow [2022-11-18 19:43:23,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 159.2) internal successors, (796), 5 states have internal predecessors, (796), 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) [2022-11-18 19:43:23,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:23,701 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] [2022-11-18 19:43:23,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:43:23,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1550551509, now seen corresponding path program 2 times [2022-11-18 19:43:23,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:23,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599374259] [2022-11-18 19:43:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:23,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:23,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599374259] [2022-11-18 19:43:23,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599374259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:23,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:23,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:43:23,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40036232] [2022-11-18 19:43:23,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:23,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:23,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:23,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:23,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 196 [2022-11-18 19:43:23,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 207 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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) [2022-11-18 19:43:23,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:23,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 196 [2022-11-18 19:43:23,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:24,394 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L702-1-->L702-2: Formula: (= |v_writerThread1of1ForFork2_#t~nondet7#1_3| |v_#race~x~0_7|) InVars {writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} OutVars{#race~x~0=|v_#race~x~0_7|, writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} AuxVars[] AssignedVars[#race~x~0][139], [Black: 227#(= |#race~x~0| 0), 233#(= ~r~0 0), 70#L709-1true, 41#L720-4true, 210#true, 53#L702-2true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 241#(not (= ~w~0 0)), Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:24,395 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is not cut-off event [2022-11-18 19:43:24,395 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:24,395 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:24,395 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:24,898 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L711-8-->L712-1: Formula: (= v_~r~0_72 (+ v_~r~0_71 1)) InVars {~r~0=v_~r~0_72} OutVars{readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1=|v_readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1_5|, #race~r~0=|v_#race~r~0_100|, ~r~0=v_~r~0_71} AuxVars[] AssignedVars[readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1, #race~r~0, ~r~0][171], [Black: 225#true, 32#L712-1true, 41#L720-4true, 210#true, readerThread1of1ForFork0InUse, Black: 233#(= ~r~0 0), Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 231#true, 241#(not (= ~w~0 0)), 165#L701-2true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:24,898 INFO L383 tUnfolder$Statistics]: this new event has 89 ancestors and is not cut-off event [2022-11-18 19:43:24,898 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is not cut-off event [2022-11-18 19:43:24,898 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is not cut-off event [2022-11-18 19:43:24,899 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is not cut-off event [2022-11-18 19:43:24,925 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L702-1-->L702-2: Formula: (= |v_writerThread1of1ForFork2_#t~nondet7#1_3| |v_#race~x~0_7|) InVars {writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} OutVars{#race~x~0=|v_#race~x~0_7|, writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} AuxVars[] AssignedVars[#race~x~0][139], [Black: 227#(= |#race~x~0| 0), 233#(= ~r~0 0), 41#L720-4true, 210#true, 53#L702-2true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 34#L711-4true, 61#L712-1true, 241#(not (= ~w~0 0)), Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:24,925 INFO L383 tUnfolder$Statistics]: this new event has 90 ancestors and is not cut-off event [2022-11-18 19:43:24,925 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 19:43:24,925 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 19:43:24,926 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 19:43:25,080 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L711-8-->L712-1: Formula: (= v_~r~0_72 (+ v_~r~0_71 1)) InVars {~r~0=v_~r~0_72} OutVars{readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1=|v_readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1_5|, #race~r~0=|v_#race~r~0_100|, ~r~0=v_~r~0_71} AuxVars[] AssignedVars[readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1, #race~r~0, ~r~0][171], [Black: 225#true, 32#L712-1true, 210#true, readerThread1of1ForFork0InUse, Black: 233#(= ~r~0 0), Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 231#true, 241#(not (= ~w~0 0)), 165#L701-2true, 96#L721-7true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:25,080 INFO L383 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-11-18 19:43:25,080 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 19:43:25,080 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 19:43:25,081 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 19:43:25,159 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L711-8-->L712-1: Formula: (= v_~r~0_72 (+ v_~r~0_71 1)) InVars {~r~0=v_~r~0_72} OutVars{readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1=|v_readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1_5|, #race~r~0=|v_#race~r~0_100|, ~r~0=v_~r~0_71} AuxVars[] AssignedVars[readerThread1of1ForFork0___VERIFIER_atomic_release_read_lock_#t~nondet6#1, #race~r~0, ~r~0][171], [Black: 225#true, 231#true, 32#L712-1true, 241#(not (= ~w~0 0)), 165#L701-2true, 210#true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 82#L722-7true, readerThread1of1ForFork0InUse, Black: 233#(= ~r~0 0), Black: 234#(and (= ~r~0 0) (= ~w~0 0)), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:25,159 INFO L383 tUnfolder$Statistics]: this new event has 111 ancestors and is cut-off event [2022-11-18 19:43:25,159 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 19:43:25,160 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 19:43:25,160 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 19:43:25,206 INFO L130 PetriNetUnfolder]: 1425/8869 cut-off events. [2022-11-18 19:43:25,206 INFO L131 PetriNetUnfolder]: For 3681/4010 co-relation queries the response was YES. [2022-11-18 19:43:25,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15599 conditions, 8869 events. 1425/8869 cut-off events. For 3681/4010 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 106628 event pairs, 432 based on Foata normal form. 148/7634 useless extension candidates. Maximal degree in co-relation 15590. Up to 1189 conditions per place. [2022-11-18 19:43:25,287 INFO L137 encePairwiseOnDemand]: 190/196 looper letters, 29 selfloop transitions, 10 changer transitions 0/202 dead transitions. [2022-11-18 19:43:25,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 202 transitions, 730 flow [2022-11-18 19:43:25,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-18 19:43:25,290 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-11-18 19:43:25,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-18 19:43:25,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-18 19:43:25,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:25,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-18 19:43:25,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2022-11-18 19:43:25,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:25,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:25,298 INFO L175 Difference]: Start difference. First operand has 177 places, 207 transitions, 698 flow. Second operand 3 states and 504 transitions. [2022-11-18 19:43:25,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 202 transitions, 730 flow [2022-11-18 19:43:25,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 202 transitions, 730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:43:25,307 INFO L231 Difference]: Finished difference. Result has 179 places, 197 transitions, 656 flow [2022-11-18 19:43:25,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=179, PETRI_TRANSITIONS=197} [2022-11-18 19:43:25,309 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -10 predicate places. [2022-11-18 19:43:25,309 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 197 transitions, 656 flow [2022-11-18 19:43:25,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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) [2022-11-18 19:43:25,310 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:25,310 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] [2022-11-18 19:43:25,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:43:25,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:25,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:25,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1067927210, now seen corresponding path program 1 times [2022-11-18 19:43:25,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:25,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624477936] [2022-11-18 19:43:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:25,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:25,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:25,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624477936] [2022-11-18 19:43:25,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624477936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:25,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:25,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:43:25,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140887380] [2022-11-18 19:43:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:25,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:25,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:25,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:25,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:25,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 196 [2022-11-18 19:43:25,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 197 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:25,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:25,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 196 [2022-11-18 19:43:25,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:26,320 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([441] L710-2-->L710-3: Formula: (= |v_readerThread1of1ForFork0_#t~nondet9#1_3| |v_#race~y~0_1|) InVars {readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} OutVars{#race~y~0=|v_#race~y~0_1|, readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} AuxVars[] AssignedVars[#race~y~0][122], [Black: 225#true, 233#(= ~r~0 0), 77#L710-3true, 41#L720-4true, 243#true, 210#true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 241#(not (= ~w~0 0)), 165#L701-2true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:26,320 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-18 19:43:26,321 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-18 19:43:26,321 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-18 19:43:26,321 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-18 19:43:26,530 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L702-1-->L702-2: Formula: (= |v_writerThread1of1ForFork2_#t~nondet7#1_3| |v_#race~x~0_7|) InVars {writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} OutVars{#race~x~0=|v_#race~x~0_7|, writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} AuxVars[] AssignedVars[#race~x~0][139], [Black: 227#(= |#race~x~0| 0), 233#(= ~r~0 0), 70#L709-1true, 41#L720-4true, 243#true, 210#true, 53#L702-2true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 241#(not (= ~w~0 0)), Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:26,530 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is not cut-off event [2022-11-18 19:43:26,530 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:26,530 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:26,530 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:27,173 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([441] L710-2-->L710-3: Formula: (= |v_readerThread1of1ForFork0_#t~nondet9#1_3| |v_#race~y~0_1|) InVars {readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} OutVars{#race~y~0=|v_#race~y~0_1|, readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} AuxVars[] AssignedVars[#race~y~0][122], [Black: 225#true, 233#(= ~r~0 0), 77#L710-3true, 243#true, 210#true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 241#(not (= ~w~0 0)), 165#L701-2true, 96#L721-7true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:27,173 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 19:43:27,173 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 19:43:27,173 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 19:43:27,173 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 19:43:27,673 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([441] L710-2-->L710-3: Formula: (= |v_readerThread1of1ForFork0_#t~nondet9#1_3| |v_#race~y~0_1|) InVars {readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} OutVars{#race~y~0=|v_#race~y~0_1|, readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} AuxVars[] AssignedVars[#race~y~0][122], [Black: 225#true, 241#(not (= ~w~0 0)), 233#(= ~r~0 0), 77#L710-3true, 165#L701-2true, 243#true, 210#true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 82#L722-7true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:27,673 INFO L383 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-11-18 19:43:27,673 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-11-18 19:43:27,673 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-11-18 19:43:27,673 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-11-18 19:43:27,778 INFO L130 PetriNetUnfolder]: 4843/17585 cut-off events. [2022-11-18 19:43:27,778 INFO L131 PetriNetUnfolder]: For 11491/11729 co-relation queries the response was YES. [2022-11-18 19:43:27,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36572 conditions, 17585 events. 4843/17585 cut-off events. For 11491/11729 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 222714 event pairs, 2577 based on Foata normal form. 11/14660 useless extension candidates. Maximal degree in co-relation 36562. Up to 6553 conditions per place. [2022-11-18 19:43:27,919 INFO L137 encePairwiseOnDemand]: 190/196 looper letters, 58 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2022-11-18 19:43:27,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 217 transitions, 881 flow [2022-11-18 19:43:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:27,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2022-11-18 19:43:27,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8282312925170068 [2022-11-18 19:43:27,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 487 transitions. [2022-11-18 19:43:27,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 487 transitions. [2022-11-18 19:43:27,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:27,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 487 transitions. [2022-11-18 19:43:27,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2022-11-18 19:43:27,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:27,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:27,927 INFO L175 Difference]: Start difference. First operand has 179 places, 197 transitions, 656 flow. Second operand 3 states and 487 transitions. [2022-11-18 19:43:27,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 217 transitions, 881 flow [2022-11-18 19:43:27,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 217 transitions, 865 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:43:27,940 INFO L231 Difference]: Finished difference. Result has 182 places, 201 transitions, 684 flow [2022-11-18 19:43:27,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=182, PETRI_TRANSITIONS=201} [2022-11-18 19:43:27,941 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -7 predicate places. [2022-11-18 19:43:27,941 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 201 transitions, 684 flow [2022-11-18 19:43:27,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:27,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:27,942 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] [2022-11-18 19:43:27,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:43:27,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2143213476, now seen corresponding path program 1 times [2022-11-18 19:43:27,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:27,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255878998] [2022-11-18 19:43:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:27,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:27,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255878998] [2022-11-18 19:43:27,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255878998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:27,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:27,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:43:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252988393] [2022-11-18 19:43:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:27,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:27,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:27,990 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 196 [2022-11-18 19:43:27,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 201 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2022-11-18 19:43:27,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:27,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 196 [2022-11-18 19:43:27,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:30,240 INFO L130 PetriNetUnfolder]: 3596/14110 cut-off events. [2022-11-18 19:43:30,241 INFO L131 PetriNetUnfolder]: For 10419/11172 co-relation queries the response was YES. [2022-11-18 19:43:30,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31321 conditions, 14110 events. 3596/14110 cut-off events. For 10419/11172 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 175900 event pairs, 1777 based on Foata normal form. 17/12042 useless extension candidates. Maximal degree in co-relation 31309. Up to 5298 conditions per place. [2022-11-18 19:43:30,368 INFO L137 encePairwiseOnDemand]: 188/196 looper letters, 81 selfloop transitions, 10 changer transitions 0/226 dead transitions. [2022-11-18 19:43:30,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 226 transitions, 974 flow [2022-11-18 19:43:30,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:30,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:30,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2022-11-18 19:43:30,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.814625850340136 [2022-11-18 19:43:30,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 479 transitions. [2022-11-18 19:43:30,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 479 transitions. [2022-11-18 19:43:30,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:30,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 479 transitions. [2022-11-18 19:43:30,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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) [2022-11-18 19:43:30,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:30,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:30,375 INFO L175 Difference]: Start difference. First operand has 182 places, 201 transitions, 684 flow. Second operand 3 states and 479 transitions. [2022-11-18 19:43:30,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 226 transitions, 974 flow [2022-11-18 19:43:30,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 226 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:43:30,400 INFO L231 Difference]: Finished difference. Result has 184 places, 209 transitions, 772 flow [2022-11-18 19:43:30,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=772, PETRI_PLACES=184, PETRI_TRANSITIONS=209} [2022-11-18 19:43:30,401 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -5 predicate places. [2022-11-18 19:43:30,401 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 209 transitions, 772 flow [2022-11-18 19:43:30,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2022-11-18 19:43:30,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:30,402 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] [2022-11-18 19:43:30,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:43:30,403 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr5ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1797253137, now seen corresponding path program 1 times [2022-11-18 19:43:30,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:30,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787952054] [2022-11-18 19:43:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:30,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:30,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787952054] [2022-11-18 19:43:30,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787952054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:30,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:30,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:43:30,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84232686] [2022-11-18 19:43:30,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:30,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:43:30,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:30,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:43:30,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:43:30,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 196 [2022-11-18 19:43:30,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 209 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:43:30,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:30,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 196 [2022-11-18 19:43:30,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:31,613 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L702-1-->L702-2: Formula: (= |v_writerThread1of1ForFork2_#t~nondet7#1_3| |v_#race~x~0_7|) InVars {writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} OutVars{#race~x~0=|v_#race~x~0_7|, writerThread1of1ForFork2_#t~nondet7#1=|v_writerThread1of1ForFork2_#t~nondet7#1_3|} AuxVars[] AssignedVars[#race~x~0][137], [251#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~x~0|), Black: 227#(= |#race~x~0| 0), 233#(= ~r~0 0), 41#L720-4true, 70#L709-1true, 210#true, 53#L702-2true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, Black: 245#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet9#1|), 257#(= |#race~y~0| 0), Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 249#true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:31,614 INFO L383 tUnfolder$Statistics]: this new event has 80 ancestors and is not cut-off event [2022-11-18 19:43:31,614 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:31,614 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:31,614 INFO L386 tUnfolder$Statistics]: existing Event has 80 ancestors and is not cut-off event [2022-11-18 19:43:31,722 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([441] L710-2-->L710-3: Formula: (= |v_readerThread1of1ForFork0_#t~nondet9#1_3| |v_#race~y~0_1|) InVars {readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} OutVars{#race~y~0=|v_#race~y~0_1|, readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} AuxVars[] AssignedVars[#race~y~0][144], [Black: 225#true, 233#(= ~r~0 0), 77#L710-3true, 41#L720-4true, 210#true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 255#true, 165#L701-2true, Black: 245#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet9#1|), 249#true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 98#L703-4true, Black: 251#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~x~0|), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:31,722 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is not cut-off event [2022-11-18 19:43:31,722 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is not cut-off event [2022-11-18 19:43:31,722 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is not cut-off event [2022-11-18 19:43:31,722 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is not cut-off event [2022-11-18 19:43:32,750 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([441] L710-2-->L710-3: Formula: (= |v_readerThread1of1ForFork0_#t~nondet9#1_3| |v_#race~y~0_1|) InVars {readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} OutVars{#race~y~0=|v_#race~y~0_1|, readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} AuxVars[] AssignedVars[#race~y~0][144], [Black: 225#true, 233#(= ~r~0 0), 77#L710-3true, 210#true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 61#L712-1true, 255#true, 96#L721-7true, 165#L701-2true, Black: 245#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet9#1|), 249#true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), Black: 251#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~x~0|), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:32,750 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is not cut-off event [2022-11-18 19:43:32,750 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is not cut-off event [2022-11-18 19:43:32,750 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is not cut-off event [2022-11-18 19:43:32,750 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is not cut-off event [2022-11-18 19:43:33,005 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([441] L710-2-->L710-3: Formula: (= |v_readerThread1of1ForFork0_#t~nondet9#1_3| |v_#race~y~0_1|) InVars {readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} OutVars{#race~y~0=|v_#race~y~0_1|, readerThread1of1ForFork0_#t~nondet9#1=|v_readerThread1of1ForFork0_#t~nondet9#1_3|} AuxVars[] AssignedVars[#race~y~0][144], [Black: 225#true, 233#(= ~r~0 0), 77#L710-3true, 210#true, readerThread1of1ForFork0InUse, Black: 234#(and (= ~r~0 0) (= ~w~0 0)), 255#true, 165#L701-2true, Black: 245#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet9#1|), 249#true, Black: 215#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 82#L722-7true, Black: 251#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~x~0|), Black: 221#(= |writerThread1of1ForFork3_#t~nondet8#1| |#race~w~0|)]) [2022-11-18 19:43:33,005 INFO L383 tUnfolder$Statistics]: this new event has 103 ancestors and is not cut-off event [2022-11-18 19:43:33,005 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is not cut-off event [2022-11-18 19:43:33,005 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is not cut-off event [2022-11-18 19:43:33,005 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is not cut-off event [2022-11-18 19:43:33,435 INFO L130 PetriNetUnfolder]: 4614/18623 cut-off events. [2022-11-18 19:43:33,436 INFO L131 PetriNetUnfolder]: For 16516/17085 co-relation queries the response was YES. [2022-11-18 19:43:33,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41592 conditions, 18623 events. 4614/18623 cut-off events. For 16516/17085 co-relation queries the response was YES. Maximal size of possible extension queue 890. Compared 244446 event pairs, 1420 based on Foata normal form. 39/16181 useless extension candidates. Maximal degree in co-relation 41579. Up to 4180 conditions per place. [2022-11-18 19:43:33,586 INFO L137 encePairwiseOnDemand]: 188/196 looper letters, 69 selfloop transitions, 7 changer transitions 0/241 dead transitions. [2022-11-18 19:43:33,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 241 transitions, 1089 flow [2022-11-18 19:43:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:43:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:43:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2022-11-18 19:43:33,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8469387755102041 [2022-11-18 19:43:33,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2022-11-18 19:43:33,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2022-11-18 19:43:33,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:33,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2022-11-18 19:43:33,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2022-11-18 19:43:33,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:33,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2022-11-18 19:43:33,594 INFO L175 Difference]: Start difference. First operand has 184 places, 209 transitions, 772 flow. Second operand 3 states and 498 transitions. [2022-11-18 19:43:33,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 241 transitions, 1089 flow [2022-11-18 19:43:33,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 241 transitions, 1057 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-18 19:43:33,668 INFO L231 Difference]: Finished difference. Result has 186 places, 215 transitions, 802 flow [2022-11-18 19:43:33,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=802, PETRI_PLACES=186, PETRI_TRANSITIONS=215} [2022-11-18 19:43:33,669 INFO L288 CegarLoopForPetriNet]: 189 programPoint places, -3 predicate places. [2022-11-18 19:43:33,669 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 215 transitions, 802 flow [2022-11-18 19:43:33,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:43:33,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:33,670 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] [2022-11-18 19:43:33,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:43:33,671 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-18 19:43:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1358730945, now seen corresponding path program 1 times [2022-11-18 19:43:33,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:33,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922419015] [2022-11-18 19:43:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:33,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:33,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:33,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:33,732 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:43:33,734 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2022-11-18 19:43:33,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2022-11-18 19:43:33,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2022-11-18 19:43:33,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2022-11-18 19:43:33,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2022-11-18 19:43:33,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2022-11-18 19:43:33,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2022-11-18 19:43:33,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2022-11-18 19:43:33,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2022-11-18 19:43:33,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2022-11-18 19:43:33,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2022-11-18 19:43:33,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2022-11-18 19:43:33,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2022-11-18 19:43:33,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2022-11-18 19:43:33,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2022-11-18 19:43:33,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2022-11-18 19:43:33,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2022-11-18 19:43:33,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 50 remaining) [2022-11-18 19:43:33,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2022-11-18 19:43:33,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2022-11-18 19:43:33,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2022-11-18 19:43:33,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2022-11-18 19:43:33,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2022-11-18 19:43:33,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2022-11-18 19:43:33,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2022-11-18 19:43:33,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2022-11-18 19:43:33,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2022-11-18 19:43:33,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2022-11-18 19:43:33,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2022-11-18 19:43:33,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2022-11-18 19:43:33,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2022-11-18 19:43:33,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2022-11-18 19:43:33,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2022-11-18 19:43:33,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2022-11-18 19:43:33,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2022-11-18 19:43:33,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2022-11-18 19:43:33,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2022-11-18 19:43:33,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2022-11-18 19:43:33,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2022-11-18 19:43:33,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2022-11-18 19:43:33,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2022-11-18 19:43:33,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2022-11-18 19:43:33,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2022-11-18 19:43:33,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2022-11-18 19:43:33,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2022-11-18 19:43:33,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2022-11-18 19:43:33,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2022-11-18 19:43:33,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2022-11-18 19:43:33,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2022-11-18 19:43:33,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2022-11-18 19:43:33,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:43:33,748 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:33,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:43:33,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:43:33,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:43:33 BasicIcfg [2022-11-18 19:43:33,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:43:33,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:43:33,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:43:33,817 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:43:33,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:43:00" (3/4) ... [2022-11-18 19:43:33,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:43:33,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:43:33,821 INFO L158 Benchmark]: Toolchain (without parser) took 35359.25ms. Allocated memory was 123.7MB in the beginning and 11.8GB in the end (delta: 11.7GB). Free memory was 87.6MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-11-18 19:43:33,823 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 81.8MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:43:33,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 797.19ms. Allocated memory is still 123.7MB. Free memory was 87.6MB in the beginning and 88.0MB in the end (delta: -384.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:43:33,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.45ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 85.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:43:33,824 INFO L158 Benchmark]: Boogie Preprocessor took 76.53ms. Allocated memory is still 123.7MB. Free memory was 85.3MB in the beginning and 83.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:43:33,827 INFO L158 Benchmark]: RCFGBuilder took 907.03ms. Allocated memory is still 123.7MB. Free memory was 83.8MB in the beginning and 57.2MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 19:43:33,828 INFO L158 Benchmark]: TraceAbstraction took 33446.45ms. Allocated memory was 123.7MB in the beginning and 11.8GB in the end (delta: 11.7GB). Free memory was 56.6MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-18 19:43:33,828 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 11.8GB. Free memory is still 10.4GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:43:33,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 81.8MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 797.19ms. Allocated memory is still 123.7MB. Free memory was 87.6MB in the beginning and 88.0MB in the end (delta: -384.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.45ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 85.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.53ms. Allocated memory is still 123.7MB. Free memory was 85.3MB in the beginning and 83.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 907.03ms. Allocated memory is still 123.7MB. Free memory was 83.8MB in the beginning and 57.2MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 33446.45ms. Allocated memory was 123.7MB in the beginning and 11.8GB in the end (delta: 11.7GB). Free memory was 56.6MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 11.8GB. Free memory is still 10.4GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 703]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L716] 0 pthread_t t1, t2, t3, t4; VAL [r=0, t1={5:0}, t2={6:0}, t3={7:0}, t4={3:0}, w=0, x=0, y=0] [L717] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [pthread_create(&t1, 0, writer, 0)=-1, r=0, t1={5:0}, t2={6:0}, t3={7:0}, t4={3:0}, w=0, x=0, y=0] [L718] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [pthread_create(&t2, 0, reader, 0)=0, r=0, t1={5:0}, t2={6:0}, t3={7:0}, t4={3:0}, w=0, x=0, y=0] [L701] CALL 1 __VERIFIER_atomic_take_write_lock() [L690] EXPR 1 w==0 [L690] EXPR 1 w==0 && r==0 [L690] EXPR 1 r==0 [L690] EXPR 1 w==0 && r==0 [L690] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L690] RET 1 assume_abort_if_not(w==0 && r==0) [L691] 1 w = 1 [L701] RET 1 __VERIFIER_atomic_take_write_lock() [L702] 1 x = 3 VAL [arg={0:0}, arg={0:0}, r=0, w=1, x=3, y=0] [L703] 1 w = 0 VAL [arg={0:0}, arg={0:0}, r=0, w=0, w = 0=50, x=3, y=0] [L707] 2 int l; VAL [arg={0:0}, arg={0:0}, r=0, w=0, x=3, y=0] [L708] CALL 2 __VERIFIER_atomic_take_read_lock() [L694] EXPR 2 w==0 [L694] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L694] RET 2 assume_abort_if_not(w==0) [L695] EXPR 2 r+1 [L695] 2 r = r+1 [L708] RET 2 __VERIFIER_atomic_take_read_lock() [L703] 1 w = 0 VAL [arg={0:0}, arg={0:0}, r=1, w=0, w = 0=50, x=3, y=0] Now there is a data race on ~w~0 between C: w==0 [694] and C: w = 0 [703] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 250 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: 33.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 112 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=802occurred in iteration=9, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:43:33,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26248bdf-cbb6-4244-83ff-96cd04227ad5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE