./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN --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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- 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-6b4ec56 [2022-11-20 11:05:50,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:05:50,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:05:50,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:05:50,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:05:50,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:05:50,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:05:50,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:05:50,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:05:50,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:05:50,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:05:50,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:05:50,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:05:50,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:05:50,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:05:50,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:05:50,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:05:50,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:05:50,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:05:50,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:05:50,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:05:50,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:05:50,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:05:50,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:05:50,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:05:50,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:05:50,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:05:50,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:05:50,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:05:50,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:05:50,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:05:50,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:05:50,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:05:50,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:05:50,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:05:50,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:05:50,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:05:50,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:05:50,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:05:50,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:05:50,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:05:50,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:05:50,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:05:50,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:05:50,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:05:50,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:05:50,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:05:50,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:05:50,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:05:50,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:05:50,399 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:05:50,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:05:50,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:05:50,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:05:50,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:05:50,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:05:50,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:05:50,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:05:50,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:05:50,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:05:50,401 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:05:50,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:05:50,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:05:50,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:05:50,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:05:50,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:05:50,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:05:50,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:05:50,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:50,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:05:50,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:05:50,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:05:50,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:05:50,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:05:50,410 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:05:50,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:05:50,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:05:50,410 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_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2022-11-20 11:05:50,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:05:50,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:05:50,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:05:50,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:05:50,791 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:05:50,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2022-11-20 11:05:54,514 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:05:54,748 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:05:54,749 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2022-11-20 11:05:54,757 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/data/9bb0692f5/7129c4eebf874f80bfb0f6dfaae1e416/FLAG13df1e29c [2022-11-20 11:05:54,775 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/data/9bb0692f5/7129c4eebf874f80bfb0f6dfaae1e416 [2022-11-20 11:05:54,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:05:54,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:05:54,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:54,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:05:54,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:05:54,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:54" (1/1) ... [2022-11-20 11:05:54,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b6fe87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:54, skipping insertion in model container [2022-11-20 11:05:54,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:54" (1/1) ... [2022-11-20 11:05:54,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:05:54,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:05:55,074 WARN L237 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_cb848287-0443-4194-b4db-21c85d14bdae/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-11-20 11:05:55,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:55,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:05:55,141 WARN L237 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_cb848287-0443-4194-b4db-21c85d14bdae/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-11-20 11:05:55,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:55,168 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:05:55,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55 WrapperNode [2022-11-20 11:05:55,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:55,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:55,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:05:55,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:05:55,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,263 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 298 [2022-11-20 11:05:55,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:55,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:05:55,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:05:55,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:05:55,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:05:55,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:05:55,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:05:55,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:05:55,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (1/1) ... [2022-11-20 11:05:55,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:55,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:05:55,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:05:55,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb848287-0443-4194-b4db-21c85d14bdae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:05:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:05:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:05:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:05:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:05:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:05:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:05:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:05:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:05:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:05:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:05:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:05:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:05:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:05:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:05:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:05:55,493 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:05:55,705 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:05:55,708 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:05:56,659 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:05:56,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:05:56,675 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-20 11:05:56,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:56 BoogieIcfgContainer [2022-11-20 11:05:56,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:05:56,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:05:56,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:05:56,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:05:56,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:05:54" (1/3) ... [2022-11-20 11:05:56,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c07bad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:56, skipping insertion in model container [2022-11-20 11:05:56,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:55" (2/3) ... [2022-11-20 11:05:56,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c07bad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:56, skipping insertion in model container [2022-11-20 11:05:56,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:56" (3/3) ... [2022-11-20 11:05:56,690 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-11-20 11:05:56,701 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:05:56,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:05:56,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2022-11-20 11:05:56,716 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:05:56,950 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:05:57,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 507 places, 524 transitions, 1072 flow [2022-11-20 11:05:57,299 INFO L130 PetriNetUnfolder]: 27/521 cut-off events. [2022-11-20 11:05:57,300 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:05:57,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 27/521 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 734 event pairs, 0 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 386. Up to 2 conditions per place. [2022-11-20 11:05:57,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 507 places, 524 transitions, 1072 flow [2022-11-20 11:05:57,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 483 places, 499 transitions, 1016 flow [2022-11-20 11:05:57,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:05:57,369 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;@6c45e733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:05:57,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-11-20 11:05:57,382 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2022-11-20 11:05:57,383 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:05:57,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:05:57,384 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] [2022-11-20 11:05:57,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:05:57,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash -652639527, now seen corresponding path program 1 times [2022-11-20 11:05:57,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:57,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207035153] [2022-11-20 11:05:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:57,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:57,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:57,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:05:57,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207035153] [2022-11-20 11:05:57,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207035153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:57,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:57,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:05:57,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019717260] [2022-11-20 11:05:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:57,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:05:57,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:05:57,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:05:57,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:05:57,832 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 524 [2022-11-20 11:05:57,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 499 transitions, 1016 flow. Second operand has 3 states, 3 states have (on average 482.3333333333333) internal successors, (1447), 3 states have internal predecessors, (1447), 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) [2022-11-20 11:05:57,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:05:57,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 524 [2022-11-20 11:05:57,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:05:58,304 INFO L130 PetriNetUnfolder]: 64/1000 cut-off events. [2022-11-20 11:05:58,305 INFO L131 PetriNetUnfolder]: For 81/93 co-relation queries the response was YES. [2022-11-20 11:05:58,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 1000 events. 64/1000 cut-off events. For 81/93 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4480 event pairs, 39 based on Foata normal form. 44/859 useless extension candidates. Maximal degree in co-relation 736. Up to 99 conditions per place. [2022-11-20 11:05:58,325 INFO L137 encePairwiseOnDemand]: 504/524 looper letters, 21 selfloop transitions, 2 changer transitions 10/481 dead transitions. [2022-11-20 11:05:58,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 481 transitions, 1026 flow [2022-11-20 11:05:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:05:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:05:58,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2022-11-20 11:05:58,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9440203562340967 [2022-11-20 11:05:58,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1484 transitions. [2022-11-20 11:05:58,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1484 transitions. [2022-11-20 11:05:58,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:05:58,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1484 transitions. [2022-11-20 11:05:58,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 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) [2022-11-20 11:05:58,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:05:58,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:05:58,396 INFO L175 Difference]: Start difference. First operand has 483 places, 499 transitions, 1016 flow. Second operand 3 states and 1484 transitions. [2022-11-20 11:05:58,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 481 transitions, 1026 flow [2022-11-20 11:05:58,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 481 transitions, 1014 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:05:58,423 INFO L231 Difference]: Finished difference. Result has 478 places, 471 transitions, 952 flow [2022-11-20 11:05:58,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=478, PETRI_TRANSITIONS=471} [2022-11-20 11:05:58,434 INFO L288 CegarLoopForPetriNet]: 483 programPoint places, -5 predicate places. [2022-11-20 11:05:58,435 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 471 transitions, 952 flow [2022-11-20 11:05:58,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.3333333333333) internal successors, (1447), 3 states have internal predecessors, (1447), 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) [2022-11-20 11:05:58,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:05:58,437 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] [2022-11-20 11:05:58,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:05:58,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:05:58,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:58,438 INFO L85 PathProgramCache]: Analyzing trace with hash -3666813, now seen corresponding path program 1 times [2022-11-20 11:05:58,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:58,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777731739] [2022-11-20 11:05:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:58,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:58,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:05:58,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777731739] [2022-11-20 11:05:58,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777731739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:58,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:58,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:05:58,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114915158] [2022-11-20 11:05:58,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:58,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:05:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:05:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:05:58,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:05:58,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 524 [2022-11-20 11:05:58,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 471 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 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) [2022-11-20 11:05:58,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:05:58,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 524 [2022-11-20 11:05:58,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:05:58,926 INFO L130 PetriNetUnfolder]: 40/866 cut-off events. [2022-11-20 11:05:58,926 INFO L131 PetriNetUnfolder]: For 9/26 co-relation queries the response was YES. [2022-11-20 11:05:58,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 866 events. 40/866 cut-off events. For 9/26 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3466 event pairs, 21 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 933. Up to 86 conditions per place. [2022-11-20 11:05:58,941 INFO L137 encePairwiseOnDemand]: 521/524 looper letters, 33 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2022-11-20 11:05:58,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 470 transitions, 1020 flow [2022-11-20 11:05:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:05:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:05:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1443 transitions. [2022-11-20 11:05:58,948 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9179389312977099 [2022-11-20 11:05:58,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1443 transitions. [2022-11-20 11:05:58,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1443 transitions. [2022-11-20 11:05:58,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:05:58,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1443 transitions. [2022-11-20 11:05:58,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 481.0) internal successors, (1443), 3 states have internal predecessors, (1443), 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) [2022-11-20 11:05:58,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:05:58,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:05:58,962 INFO L175 Difference]: Start difference. First operand has 478 places, 471 transitions, 952 flow. Second operand 3 states and 1443 transitions. [2022-11-20 11:05:58,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 470 transitions, 1020 flow [2022-11-20 11:05:58,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 470 transitions, 1016 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:05:58,973 INFO L231 Difference]: Finished difference. Result has 467 places, 470 transitions, 950 flow [2022-11-20 11:05:58,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=950, PETRI_PLACES=467, PETRI_TRANSITIONS=470} [2022-11-20 11:05:58,976 INFO L288 CegarLoopForPetriNet]: 483 programPoint places, -16 predicate places. [2022-11-20 11:05:58,976 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 470 transitions, 950 flow [2022-11-20 11:05:58,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 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) [2022-11-20 11:05:58,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:05:58,979 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] [2022-11-20 11:05:58,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:05:58,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:05:58,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:58,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1917478077, now seen corresponding path program 1 times [2022-11-20 11:05:58,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:58,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695658353] [2022-11-20 11:05:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:58,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:59,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:05:59,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695658353] [2022-11-20 11:05:59,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695658353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:59,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:59,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:05:59,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626229108] [2022-11-20 11:05:59,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:59,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:05:59,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:05:59,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:05:59,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:05:59,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 524 [2022-11-20 11:05:59,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 470 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 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) [2022-11-20 11:05:59,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:05:59,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 524 [2022-11-20 11:05:59,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:05:59,424 INFO L130 PetriNetUnfolder]: 29/797 cut-off events. [2022-11-20 11:05:59,424 INFO L131 PetriNetUnfolder]: For 8/17 co-relation queries the response was YES. [2022-11-20 11:05:59,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 797 events. 29/797 cut-off events. For 8/17 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2923 event pairs, 12 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 823. Up to 54 conditions per place. [2022-11-20 11:05:59,435 INFO L137 encePairwiseOnDemand]: 515/524 looper letters, 23 selfloop transitions, 1 changer transitions 0/462 dead transitions. [2022-11-20 11:05:59,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 462 transitions, 982 flow [2022-11-20 11:05:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:05:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:05:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-20 11:05:59,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9211195928753181 [2022-11-20 11:05:59,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-20 11:05:59,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-20 11:05:59,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:05:59,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-20 11:05:59,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 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) [2022-11-20 11:05:59,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:05:59,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:05:59,459 INFO L175 Difference]: Start difference. First operand has 467 places, 470 transitions, 950 flow. Second operand 3 states and 1448 transitions. [2022-11-20 11:05:59,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 462 transitions, 982 flow [2022-11-20 11:05:59,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 462 transitions, 978 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:05:59,473 INFO L231 Difference]: Finished difference. Result has 459 places, 462 transitions, 932 flow [2022-11-20 11:05:59,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=932, PETRI_PLACES=459, PETRI_TRANSITIONS=462} [2022-11-20 11:05:59,478 INFO L288 CegarLoopForPetriNet]: 483 programPoint places, -24 predicate places. [2022-11-20 11:05:59,478 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 462 transitions, 932 flow [2022-11-20 11:05:59,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 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) [2022-11-20 11:05:59,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:05:59,480 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:05:59,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:05:59,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:05:59,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1354376102, now seen corresponding path program 1 times [2022-11-20 11:05:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844518451] [2022-11-20 11:05:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:59,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:59,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:05:59,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844518451] [2022-11-20 11:05:59,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844518451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:59,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:59,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:05:59,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329567050] [2022-11-20 11:05:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:59,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:05:59,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:05:59,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:05:59,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:05:59,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 524 [2022-11-20 11:05:59,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 462 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 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) [2022-11-20 11:05:59,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:05:59,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 524 [2022-11-20 11:05:59,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:00,391 INFO L130 PetriNetUnfolder]: 228/2335 cut-off events. [2022-11-20 11:06:00,391 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-11-20 11:06:00,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2683 conditions, 2335 events. 228/2335 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 18120 event pairs, 135 based on Foata normal form. 0/1922 useless extension candidates. Maximal degree in co-relation 2642. Up to 322 conditions per place. [2022-11-20 11:06:00,424 INFO L137 encePairwiseOnDemand]: 521/524 looper letters, 18 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-11-20 11:06:00,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 461 transitions, 970 flow [2022-11-20 11:06:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:06:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:06:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-11-20 11:06:00,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9370229007633588 [2022-11-20 11:06:00,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-11-20 11:06:00,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-11-20 11:06:00,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:00,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-11-20 11:06:00,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 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) [2022-11-20 11:06:00,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:06:00,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2022-11-20 11:06:00,448 INFO L175 Difference]: Start difference. First operand has 459 places, 462 transitions, 932 flow. Second operand 3 states and 1473 transitions. [2022-11-20 11:06:00,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 461 transitions, 970 flow [2022-11-20 11:06:00,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 461 transitions, 969 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:06:00,460 INFO L231 Difference]: Finished difference. Result has 459 places, 461 transitions, 933 flow [2022-11-20 11:06:00,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=933, PETRI_PLACES=459, PETRI_TRANSITIONS=461} [2022-11-20 11:06:00,469 INFO L288 CegarLoopForPetriNet]: 483 programPoint places, -24 predicate places. [2022-11-20 11:06:00,470 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 461 transitions, 933 flow [2022-11-20 11:06:00,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 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) [2022-11-20 11:06:00,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:00,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:00,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:06:00,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:06:00,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:00,473 INFO L85 PathProgramCache]: Analyzing trace with hash 643724630, now seen corresponding path program 1 times [2022-11-20 11:06:00,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:00,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447412364] [2022-11-20 11:06:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:00,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:01,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:01,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447412364] [2022-11-20 11:06:01,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447412364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:01,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:01,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:06:01,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106670717] [2022-11-20 11:06:01,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:01,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:01,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:01,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:01,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:06:01,146 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 524 [2022-11-20 11:06:01,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 461 transitions, 933 flow. Second operand has 6 states, 6 states have (on average 348.8333333333333) internal successors, (2093), 6 states have internal predecessors, (2093), 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) [2022-11-20 11:06:01,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:01,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 524 [2022-11-20 11:06:01,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand