./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski-b.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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/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 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf --- 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 20:54:50,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:54:50,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:54:51,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:54:51,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:54:51,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:54:51,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:54:51,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:54:51,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:54:51,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:54:51,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:54:51,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:54:51,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:54:51,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:54:51,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:54:51,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:54:51,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:54:51,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:54:51,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:54:51,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:54:51,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:54:51,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:54:51,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:54:51,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:54:51,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:54:51,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:54:51,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:54:51,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:54:51,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:54:51,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:54:51,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:54:51,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:54:51,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:54:51,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:54:51,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:54:51,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:54:51,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:54:51,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:54:51,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:54:51,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:54:51,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:54:51,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:54:51,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:54:51,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:54:51,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:54:51,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:54:51,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:54:51,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:54:51,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:54:51,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:54:51,107 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:54:51,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:54:51,108 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:54:51,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:54:51,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:54:51,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:54:51,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:54:51,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:54:51,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:54:51,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:54:51,110 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:54:51,111 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:54:51,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:54:51,111 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:54:51,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:54:51,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:54:51,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:54:51,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:54:51,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:54:51,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:54:51,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:54:51,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:54:51,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:54:51,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:54:51,115 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:54:51,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:54:51,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:54:51,116 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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf [2022-11-18 20:54:51,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:54:51,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:54:51,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:54:51,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:54:51,471 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:54:51,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-11-18 20:54:51,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/data/bd682c135/0b504fd682d04a0382548fd26eaced11/FLAGffc51c0f1 [2022-11-18 20:54:52,209 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:54:52,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-11-18 20:54:52,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/data/bd682c135/0b504fd682d04a0382548fd26eaced11/FLAGffc51c0f1 [2022-11-18 20:54:52,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/data/bd682c135/0b504fd682d04a0382548fd26eaced11 [2022-11-18 20:54:52,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:54:52,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:54:52,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:54:52,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:54:52,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:54:52,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:54:52" (1/1) ... [2022-11-18 20:54:52,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3615ad2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:52, skipping insertion in model container [2022-11-18 20:54:52,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:54:52" (1/1) ... [2022-11-18 20:54:52,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:54:52,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:54:53,155 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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-11-18 20:54:53,168 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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-11-18 20:54:53,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:54:53,199 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:54:53,259 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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-11-18 20:54:53,273 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_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-11-18 20:54:53,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:54:53,328 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:54:53,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53 WrapperNode [2022-11-18 20:54:53,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:54:53,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:54:53,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:54:53,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:54:53,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,410 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-18 20:54:53,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:54:53,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:54:53,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:54:53,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:54:53,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:54:53,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:54:53,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:54:53,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:54:53,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (1/1) ... [2022-11-18 20:54:53,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:54:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:53,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:54:53,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:54:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:54:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-18 20:54:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-18 20:54:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-18 20:54:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-18 20:54:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:54:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:54:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:54:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:54:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:54:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:54:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:54:53,567 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 20:54:53,705 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:54:53,707 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:54:54,128 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:54:54,144 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:54:54,151 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 20:54:54,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:54 BoogieIcfgContainer [2022-11-18 20:54:54,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:54:54,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:54:54,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:54:54,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:54:54,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:54:52" (1/3) ... [2022-11-18 20:54:54,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de3f713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:54:54, skipping insertion in model container [2022-11-18 20:54:54,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:53" (2/3) ... [2022-11-18 20:54:54,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de3f713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:54:54, skipping insertion in model container [2022-11-18 20:54:54,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:54" (3/3) ... [2022-11-18 20:54:54,172 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2022-11-18 20:54:54,185 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:54:54,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:54:54,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-18 20:54:54,200 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:54:54,413 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:54:54,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 225 transitions, 466 flow [2022-11-18 20:54:54,648 INFO L130 PetriNetUnfolder]: 22/223 cut-off events. [2022-11-18 20:54:54,648 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:54:54,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 22/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 506 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-11-18 20:54:54,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 225 transitions, 466 flow [2022-11-18 20:54:54,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 213 transitions, 435 flow [2022-11-18 20:54:54,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:54:54,696 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;@2ef939e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:54:54,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-18 20:54:54,707 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-18 20:54:54,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:54:54,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:54,708 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 20:54:54,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:54:54,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:54,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1717524763, now seen corresponding path program 1 times [2022-11-18 20:54:54,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:54,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107306791] [2022-11-18 20:54:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:54,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:55,019 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 20:54:55,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:55,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107306791] [2022-11-18 20:54:55,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107306791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:55,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:55,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:54:55,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741833559] [2022-11-18 20:54:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:55,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:55,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:55,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:55,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 225 [2022-11-18 20:54:55,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 213 transitions, 435 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 20:54:55,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:55,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 225 [2022-11-18 20:54:55,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:55,766 INFO L130 PetriNetUnfolder]: 524/2189 cut-off events. [2022-11-18 20:54:55,766 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-11-18 20:54:55,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 2189 events. 524/2189 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 15561 event pairs, 296 based on Foata normal form. 98/1721 useless extension candidates. Maximal degree in co-relation 2882. Up to 743 conditions per place. [2022-11-18 20:54:55,800 INFO L137 encePairwiseOnDemand]: 205/225 looper letters, 50 selfloop transitions, 9 changer transitions 0/222 dead transitions. [2022-11-18 20:54:55,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 222 transitions, 574 flow [2022-11-18 20:54:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:54:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2022-11-18 20:54:55,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8844444444444445 [2022-11-18 20:54:55,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 597 transitions. [2022-11-18 20:54:55,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 597 transitions. [2022-11-18 20:54:55,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:55,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 597 transitions. [2022-11-18 20:54:55,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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 20:54:55,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:55,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:55,864 INFO L175 Difference]: Start difference. First operand has 198 places, 213 transitions, 435 flow. Second operand 3 states and 597 transitions. [2022-11-18 20:54:55,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 222 transitions, 574 flow [2022-11-18 20:54:55,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 222 transitions, 568 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:54:55,883 INFO L231 Difference]: Finished difference. Result has 197 places, 209 transitions, 476 flow [2022-11-18 20:54:55,886 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=197, PETRI_TRANSITIONS=209} [2022-11-18 20:54:55,897 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, -1 predicate places. [2022-11-18 20:54:55,898 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 209 transitions, 476 flow [2022-11-18 20:54:55,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 20:54:55,899 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:55,899 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] [2022-11-18 20:54:55,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:54:55,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:54:55,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 835476704, now seen corresponding path program 1 times [2022-11-18 20:54:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:55,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23772735] [2022-11-18 20:54:55,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:55,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:56,092 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 20:54:56,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:56,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23772735] [2022-11-18 20:54:56,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23772735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:56,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:56,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:54:56,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212255606] [2022-11-18 20:54:56,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:56,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:56,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:56,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 225 [2022-11-18 20:54:56,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 209 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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 20:54:56,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:56,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 225 [2022-11-18 20:54:56,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:56,901 INFO L130 PetriNetUnfolder]: 751/3685 cut-off events. [2022-11-18 20:54:56,901 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-18 20:54:56,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5037 conditions, 3685 events. 751/3685 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 31838 event pairs, 71 based on Foata normal form. 0/2763 useless extension candidates. Maximal degree in co-relation 4874. Up to 643 conditions per place. [2022-11-18 20:54:56,938 INFO L137 encePairwiseOnDemand]: 202/225 looper letters, 48 selfloop transitions, 17 changer transitions 0/238 dead transitions. [2022-11-18 20:54:56,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 238 transitions, 667 flow [2022-11-18 20:54:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:54:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2022-11-18 20:54:56,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8874074074074074 [2022-11-18 20:54:56,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 599 transitions. [2022-11-18 20:54:56,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 599 transitions. [2022-11-18 20:54:56,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:56,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 599 transitions. [2022-11-18 20:54:56,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:56,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:56,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:56,948 INFO L175 Difference]: Start difference. First operand has 197 places, 209 transitions, 476 flow. Second operand 3 states and 599 transitions. [2022-11-18 20:54:56,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 238 transitions, 667 flow [2022-11-18 20:54:56,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 238 transitions, 649 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:54:56,957 INFO L231 Difference]: Finished difference. Result has 199 places, 226 transitions, 606 flow [2022-11-18 20:54:56,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2022-11-18 20:54:56,959 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 1 predicate places. [2022-11-18 20:54:56,959 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 606 flow [2022-11-18 20:54:56,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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 20:54:56,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:56,960 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] [2022-11-18 20:54:56,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:54:56,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:54:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 723611539, now seen corresponding path program 1 times [2022-11-18 20:54:56,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:56,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114079207] [2022-11-18 20:54:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:56,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:57,040 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 20:54:57,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:57,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114079207] [2022-11-18 20:54:57,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114079207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:57,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:57,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:54:57,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408996761] [2022-11-18 20:54:57,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:57,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:57,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:57,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:57,044 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 225 [2022-11-18 20:54:57,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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 20:54:57,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:57,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 225 [2022-11-18 20:54:57,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:57,801 INFO L130 PetriNetUnfolder]: 821/3788 cut-off events. [2022-11-18 20:54:57,801 INFO L131 PetriNetUnfolder]: For 972/1095 co-relation queries the response was YES. [2022-11-18 20:54:57,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6284 conditions, 3788 events. 821/3788 cut-off events. For 972/1095 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 32521 event pairs, 245 based on Foata normal form. 6/2965 useless extension candidates. Maximal degree in co-relation 4805. Up to 1138 conditions per place. [2022-11-18 20:54:57,839 INFO L137 encePairwiseOnDemand]: 215/225 looper letters, 72 selfloop transitions, 16 changer transitions 0/259 dead transitions. [2022-11-18 20:54:57,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 259 transitions, 933 flow [2022-11-18 20:54:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:57,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:54:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-18 20:54:57,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8622222222222222 [2022-11-18 20:54:57,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-18 20:54:57,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-18 20:54:57,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:57,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-18 20:54:57,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 20:54:57,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:57,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:57,848 INFO L175 Difference]: Start difference. First operand has 199 places, 226 transitions, 606 flow. Second operand 3 states and 582 transitions. [2022-11-18 20:54:57,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 259 transitions, 933 flow [2022-11-18 20:54:57,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 259 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:54:57,860 INFO L231 Difference]: Finished difference. Result has 201 places, 240 transitions, 718 flow [2022-11-18 20:54:57,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=201, PETRI_TRANSITIONS=240} [2022-11-18 20:54:57,863 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 3 predicate places. [2022-11-18 20:54:57,863 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 240 transitions, 718 flow [2022-11-18 20:54:57,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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 20:54:57,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:57,864 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] [2022-11-18 20:54:57,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:54:57,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:54:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1342987004, now seen corresponding path program 1 times [2022-11-18 20:54:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:57,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048031105] [2022-11-18 20:54:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:57,963 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 20:54:57,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048031105] [2022-11-18 20:54:57,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048031105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:57,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:57,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:54:57,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659976196] [2022-11-18 20:54:57,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:57,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:57,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:57,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 225 [2022-11-18 20:54:57,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 240 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 20:54:57,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:57,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 225 [2022-11-18 20:54:57,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:58,852 INFO L130 PetriNetUnfolder]: 1324/5390 cut-off events. [2022-11-18 20:54:58,852 INFO L131 PetriNetUnfolder]: For 718/749 co-relation queries the response was YES. [2022-11-18 20:54:58,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8632 conditions, 5390 events. 1324/5390 cut-off events. For 718/749 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 48480 event pairs, 520 based on Foata normal form. 5/4033 useless extension candidates. Maximal degree in co-relation 8428. Up to 1713 conditions per place. [2022-11-18 20:54:58,902 INFO L137 encePairwiseOnDemand]: 215/225 looper letters, 57 selfloop transitions, 9 changer transitions 0/261 dead transitions. [2022-11-18 20:54:58,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 261 transitions, 906 flow [2022-11-18 20:54:58,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:58,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:54:58,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-18 20:54:58,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8622222222222222 [2022-11-18 20:54:58,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-18 20:54:58,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-18 20:54:58,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:58,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-18 20:54:58,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 20:54:58,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:58,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:54:58,916 INFO L175 Difference]: Start difference. First operand has 201 places, 240 transitions, 718 flow. Second operand 3 states and 582 transitions. [2022-11-18 20:54:58,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 261 transitions, 906 flow [2022-11-18 20:54:58,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 261 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:54:58,926 INFO L231 Difference]: Finished difference. Result has 203 places, 248 transitions, 768 flow [2022-11-18 20:54:58,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=768, PETRI_PLACES=203, PETRI_TRANSITIONS=248} [2022-11-18 20:54:58,930 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 5 predicate places. [2022-11-18 20:54:58,931 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 248 transitions, 768 flow [2022-11-18 20:54:58,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 20:54:58,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:58,932 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 20:54:58,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:54:58,932 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:54:58,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:58,934 INFO L85 PathProgramCache]: Analyzing trace with hash 698708591, now seen corresponding path program 1 times [2022-11-18 20:54:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:58,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402788242] [2022-11-18 20:54:58,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:58,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:59,366 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 20:54:59,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:59,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402788242] [2022-11-18 20:54:59,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402788242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:59,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:59,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:54:59,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580580309] [2022-11-18 20:54:59,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:59,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:54:59,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:59,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:54:59,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:54:59,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 225 [2022-11-18 20:54:59,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 248 transitions, 768 flow. Second operand has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 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 20:54:59,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:59,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 225 [2022-11-18 20:54:59,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:59,857 INFO L130 PetriNetUnfolder]: 537/2939 cut-off events. [2022-11-18 20:54:59,857 INFO L131 PetriNetUnfolder]: For 424/520 co-relation queries the response was YES. [2022-11-18 20:54:59,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4406 conditions, 2939 events. 537/2939 cut-off events. For 424/520 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 24978 event pairs, 46 based on Foata normal form. 61/2325 useless extension candidates. Maximal degree in co-relation 4364. Up to 290 conditions per place. [2022-11-18 20:54:59,887 INFO L137 encePairwiseOnDemand]: 220/225 looper letters, 14 selfloop transitions, 4 changer transitions 0/247 dead transitions. [2022-11-18 20:54:59,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 247 transitions, 802 flow [2022-11-18 20:54:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:54:59,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:54:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions. [2022-11-18 20:54:59,892 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8629629629629629 [2022-11-18 20:54:59,892 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions. [2022-11-18 20:54:59,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions. [2022-11-18 20:54:59,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:59,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions. [2022-11-18 20:54:59,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 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 20:54:59,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 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 20:54:59,900 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 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 20:54:59,900 INFO L175 Difference]: Start difference. First operand has 203 places, 248 transitions, 768 flow. Second operand 6 states and 1165 transitions. [2022-11-18 20:54:59,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 247 transitions, 802 flow [2022-11-18 20:54:59,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 247 transitions, 772 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-18 20:54:59,908 INFO L231 Difference]: Finished difference. Result has 205 places, 247 transitions, 744 flow [2022-11-18 20:54:59,908 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=205, PETRI_TRANSITIONS=247} [2022-11-18 20:54:59,911 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 7 predicate places. [2022-11-18 20:54:59,911 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 247 transitions, 744 flow [2022-11-18 20:54:59,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 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 20:54:59,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:59,913 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 20:54:59,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:54:59,913 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:54:59,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:59,917 INFO L85 PathProgramCache]: Analyzing trace with hash 671075732, now seen corresponding path program 1 times [2022-11-18 20:54:59,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:59,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928427981] [2022-11-18 20:54:59,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:59,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:59,981 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 20:54:59,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:59,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928427981] [2022-11-18 20:54:59,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928427981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:59,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:59,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:54:59,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806499779] [2022-11-18 20:54:59,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:59,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:59,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:59,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:59,987 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 225 [2022-11-18 20:54:59,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 247 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 20:54:59,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:59,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 225 [2022-11-18 20:54:59,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:00,999 INFO L130 PetriNetUnfolder]: 1667/7053 cut-off events. [2022-11-18 20:55:00,999 INFO L131 PetriNetUnfolder]: For 2007/2152 co-relation queries the response was YES. [2022-11-18 20:55:01,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11854 conditions, 7053 events. 1667/7053 cut-off events. For 2007/2152 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 68973 event pairs, 171 based on Foata normal form. 14/5509 useless extension candidates. Maximal degree in co-relation 11656. Up to 1267 conditions per place. [2022-11-18 20:55:01,070 INFO L137 encePairwiseOnDemand]: 202/225 looper letters, 59 selfloop transitions, 29 changer transitions 0/285 dead transitions. [2022-11-18 20:55:01,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 285 transitions, 1053 flow [2022-11-18 20:55:01,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:55:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2022-11-18 20:55:01,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.882962962962963 [2022-11-18 20:55:01,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2022-11-18 20:55:01,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2022-11-18 20:55:01,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:01,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2022-11-18 20:55:01,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 20:55:01,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:55:01,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:55:01,078 INFO L175 Difference]: Start difference. First operand has 205 places, 247 transitions, 744 flow. Second operand 3 states and 596 transitions. [2022-11-18 20:55:01,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 285 transitions, 1053 flow [2022-11-18 20:55:01,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 285 transitions, 1046 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:55:01,088 INFO L231 Difference]: Finished difference. Result has 205 places, 276 transitions, 1033 flow [2022-11-18 20:55:01,088 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1033, PETRI_PLACES=205, PETRI_TRANSITIONS=276} [2022-11-18 20:55:01,089 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 7 predicate places. [2022-11-18 20:55:01,089 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 276 transitions, 1033 flow [2022-11-18 20:55:01,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 20:55:01,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:01,090 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] [2022-11-18 20:55:01,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:55:01,091 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 20:55:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1835945774, now seen corresponding path program 1 times [2022-11-18 20:55:01,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:01,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429145398] [2022-11-18 20:55:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:55:01,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:55:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:55:01,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:55:01,140 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:55:01,141 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-11-18 20:55:01,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-11-18 20:55:01,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-11-18 20:55:01,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-11-18 20:55:01,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-11-18 20:55:01,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-11-18 20:55:01,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-11-18 20:55:01,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-11-18 20:55:01,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-11-18 20:55:01,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-11-18 20:55:01,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-11-18 20:55:01,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-11-18 20:55:01,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-11-18 20:55:01,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-11-18 20:55:01,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-11-18 20:55:01,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-11-18 20:55:01,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-11-18 20:55:01,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-11-18 20:55:01,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-11-18 20:55:01,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-11-18 20:55:01,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-11-18 20:55:01,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-11-18 20:55:01,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-11-18 20:55:01,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-11-18 20:55:01,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-11-18 20:55:01,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-11-18 20:55:01,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-11-18 20:55:01,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-11-18 20:55:01,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-11-18 20:55:01,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 56 remaining) [2022-11-18 20:55:01,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 56 remaining) [2022-11-18 20:55:01,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-11-18 20:55:01,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-11-18 20:55:01,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-11-18 20:55:01,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-11-18 20:55:01,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-11-18 20:55:01,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-11-18 20:55:01,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-11-18 20:55:01,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-11-18 20:55:01,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-11-18 20:55:01,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-11-18 20:55:01,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-11-18 20:55:01,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-11-18 20:55:01,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-11-18 20:55:01,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-11-18 20:55:01,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-11-18 20:55:01,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-11-18 20:55:01,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-11-18 20:55:01,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-11-18 20:55:01,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-11-18 20:55:01,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-11-18 20:55:01,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-11-18 20:55:01,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-11-18 20:55:01,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-11-18 20:55:01,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-11-18 20:55:01,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-11-18 20:55:01,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:55:01,155 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:01,163 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:55:01,163 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:55:01,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:55:01 BasicIcfg [2022-11-18 20:55:01,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:55:01,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:55:01,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:55:01,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:55:01,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:54" (3/4) ... [2022-11-18 20:55:01,205 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:55:01,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:55:01,206 INFO L158 Benchmark]: Toolchain (without parser) took 8722.85ms. Allocated memory was 123.7MB in the beginning and 522.2MB in the end (delta: 398.5MB). Free memory was 79.6MB in the beginning and 339.0MB in the end (delta: -259.4MB). Peak memory consumption was 137.5MB. Max. memory is 16.1GB. [2022-11-18 20:55:01,206 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:01,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.29ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 87.7MB in the end (delta: -8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:55:01,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.69ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:55:01,207 INFO L158 Benchmark]: Boogie Preprocessor took 63.39ms. Allocated memory is still 123.7MB. Free memory was 85.7MB in the beginning and 83.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:55:01,208 INFO L158 Benchmark]: RCFGBuilder took 679.24ms. Allocated memory is still 123.7MB. Free memory was 83.6MB in the beginning and 64.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 20:55:01,208 INFO L158 Benchmark]: TraceAbstraction took 7041.66ms. Allocated memory was 123.7MB in the beginning and 522.2MB in the end (delta: 398.5MB). Free memory was 63.7MB in the beginning and 340.1MB in the end (delta: -276.4MB). Peak memory consumption was 124.6MB. Max. memory is 16.1GB. [2022-11-18 20:55:01,209 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 522.2MB. Free memory was 340.1MB in the beginning and 339.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:01,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 837.29ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 87.7MB in the end (delta: -8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.69ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.39ms. Allocated memory is still 123.7MB. Free memory was 85.7MB in the beginning and 83.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.24ms. Allocated memory is still 123.7MB. Free memory was 83.6MB in the beginning and 64.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7041.66ms. Allocated memory was 123.7MB in the beginning and 522.2MB in the end (delta: 398.5MB). Free memory was 63.7MB in the beginning and 340.1MB in the end (delta: -276.4MB). Peak memory consumption was 124.6MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 522.2MB. Free memory was 340.1MB in the beginning and 339.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 688]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int x; VAL [x=0] [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0, x=0] [L719] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, t1={5:0}, t2={3:0}, x=0] [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, flag1=0, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [703] and C: flag2 >= 3 [688] - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: 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: 708]: 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: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: 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: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: 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: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: 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: 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: 721]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 354 locations, 56 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: 6.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 186 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1033occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 20:55:01,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27120ec8-2af1-49ff-8c76-fc033c0ad9c6/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