./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/lamport-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/lamport-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R --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 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 --- 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-38b53e6 [2022-11-25 15:33:18,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:33:18,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:33:18,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:33:18,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:33:18,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:33:18,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:33:18,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:33:18,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:33:18,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:33:18,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:33:18,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:33:18,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:33:18,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:33:18,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:33:18,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:33:18,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:33:18,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:33:18,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:33:18,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:33:18,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:33:18,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:33:18,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:33:18,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:33:18,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:33:18,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:33:18,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:33:18,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:33:18,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:33:18,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:33:18,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:33:18,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:33:18,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:33:18,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:33:18,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:33:18,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:33:18,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:33:18,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:33:18,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:33:18,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:33:18,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:33:18,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 15:33:18,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:33:18,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:33:18,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:33:18,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:33:18,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:33:18,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:33:18,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:33:18,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:33:18,727 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:33:18,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:33:18,728 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:33:18,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:33:18,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:33:18,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:33:18,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:33:18,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:33:18,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:33:18,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:33:18,731 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 15:33:18,731 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:33:18,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:33:18,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:33:18,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:33:18,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:33:18,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:33:18,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:33:18,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:33:18,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:33:18,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:33:18,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:33:18,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:33:18,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:33:18,735 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:33:18,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:33:18,735 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:33:18,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:33:18,736 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 [2022-11-25 15:33:19,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:33:19,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:33:19,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:33:19,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:33:19,098 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:33:19,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-atomic/lamport-b.i [2022-11-25 15:33:22,247 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:33:22,578 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:33:22,579 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/sv-benchmarks/c/pthread-atomic/lamport-b.i [2022-11-25 15:33:22,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/data/cdf7fa176/9e79a376186546f1806927db91053a43/FLAG8564bd907 [2022-11-25 15:33:22,616 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/data/cdf7fa176/9e79a376186546f1806927db91053a43 [2022-11-25 15:33:22,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:33:22,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:33:22,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:33:22,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:33:22,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:33:22,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:33:22" (1/1) ... [2022-11-25 15:33:22,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b135c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22, skipping insertion in model container [2022-11-25 15:33:22,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:33:22" (1/1) ... [2022-11-25 15:33:22,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:33:22,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:33:23,015 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_e8016fa8-2ee5-40dc-b622-088bfe67a72c/sv-benchmarks/c/pthread-atomic/lamport-b.i[30203,30216] [2022-11-25 15:33:23,030 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_e8016fa8-2ee5-40dc-b622-088bfe67a72c/sv-benchmarks/c/pthread-atomic/lamport-b.i[30581,30594] [2022-11-25 15:33:23,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:33:23,063 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:33:23,136 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_e8016fa8-2ee5-40dc-b622-088bfe67a72c/sv-benchmarks/c/pthread-atomic/lamport-b.i[30203,30216] [2022-11-25 15:33:23,140 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_e8016fa8-2ee5-40dc-b622-088bfe67a72c/sv-benchmarks/c/pthread-atomic/lamport-b.i[30581,30594] [2022-11-25 15:33:23,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:33:23,177 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:33:23,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23 WrapperNode [2022-11-25 15:33:23,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:33:23,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:33:23,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:33:23,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:33:23,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,244 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-11-25 15:33:23,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:33:23,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:33:23,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:33:23,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:33:23,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:33:23,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:33:23,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:33:23,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:33:23,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (1/1) ... [2022-11-25 15:33:23,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:33:23,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:33:23,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:33:23,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:33:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:33:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-25 15:33:23,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-25 15:33:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 15:33:23,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 15:33:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:33:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:33:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:33:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:33:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:33:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:33:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:33:23,386 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:33:23,523 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:33:23,525 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:33:24,003 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:33:24,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:33:24,022 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-25 15:33:24,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:24 BoogieIcfgContainer [2022-11-25 15:33:24,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:33:24,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:33:24,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:33:24,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:33:24,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:33:22" (1/3) ... [2022-11-25 15:33:24,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed1b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:33:24, skipping insertion in model container [2022-11-25 15:33:24,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:23" (2/3) ... [2022-11-25 15:33:24,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed1b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:33:24, skipping insertion in model container [2022-11-25 15:33:24,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:24" (3/3) ... [2022-11-25 15:33:24,042 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2022-11-25 15:33:24,053 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:33:24,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:33:24,066 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-25 15:33:24,066 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:33:24,234 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 15:33:24,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 249 transitions, 514 flow [2022-11-25 15:33:24,438 INFO L130 PetriNetUnfolder]: 24/247 cut-off events. [2022-11-25 15:33:24,439 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 15:33:24,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 247 events. 24/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 742 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2022-11-25 15:33:24,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 249 transitions, 514 flow [2022-11-25 15:33:24,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 237 transitions, 483 flow [2022-11-25 15:33:24,519 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:33:24,552 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 237 transitions, 483 flow [2022-11-25 15:33:24,555 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 237 transitions, 483 flow [2022-11-25 15:33:24,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 237 transitions, 483 flow [2022-11-25 15:33:24,630 INFO L130 PetriNetUnfolder]: 24/237 cut-off events. [2022-11-25 15:33:24,631 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 15:33:24,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 237 events. 24/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 738 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2022-11-25 15:33:24,650 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2022-11-25 15:33:28,105 INFO L134 LiptonReduction]: Checked pairs total: 128870 [2022-11-25 15:33:28,105 INFO L136 LiptonReduction]: Total number of compositions: 118 [2022-11-25 15:33:28,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:33:28,131 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;@6355aaf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:33:28,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-11-25 15:33:28,135 INFO L130 PetriNetUnfolder]: 1/8 cut-off events. [2022-11-25 15:33:28,135 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:33:28,136 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:28,137 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 15:33:28,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 28788108, now seen corresponding path program 1 times [2022-11-25 15:33:28,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:28,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847412729] [2022-11-25 15:33:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:28,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:28,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847412729] [2022-11-25 15:33:28,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847412729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:28,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:28,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:28,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080617361] [2022-11-25 15:33:28,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:28,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:33:28,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:28,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:33:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:33:28,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 367 [2022-11-25 15:33:28,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 151 transitions, 311 flow. Second operand has 2 states, 2 states have (on average 232.5) internal successors, (465), 2 states have internal predecessors, (465), 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) [2022-11-25 15:33:28,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:28,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 367 [2022-11-25 15:33:28,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:29,156 INFO L130 PetriNetUnfolder]: 1817/4838 cut-off events. [2022-11-25 15:33:29,157 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-25 15:33:29,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7508 conditions, 4838 events. 1817/4838 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 39082 event pairs, 1449 based on Foata normal form. 304/4506 useless extension candidates. Maximal degree in co-relation 7300. Up to 2599 conditions per place. [2022-11-25 15:33:29,195 INFO L137 encePairwiseOnDemand]: 353/367 looper letters, 51 selfloop transitions, 0 changer transitions 0/137 dead transitions. [2022-11-25 15:33:29,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 137 transitions, 385 flow [2022-11-25 15:33:29,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:33:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:33:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 527 transitions. [2022-11-25 15:33:29,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.717983651226158 [2022-11-25 15:33:29,221 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 527 transitions. [2022-11-25 15:33:29,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 527 transitions. [2022-11-25 15:33:29,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:29,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 527 transitions. [2022-11-25 15:33:29,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 263.5) internal successors, (527), 2 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) [2022-11-25 15:33:29,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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) [2022-11-25 15:33:29,290 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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) [2022-11-25 15:33:29,292 INFO L175 Difference]: Start difference. First operand has 134 places, 151 transitions, 311 flow. Second operand 2 states and 527 transitions. [2022-11-25 15:33:29,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 137 transitions, 385 flow [2022-11-25 15:33:29,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 137 transitions, 380 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 15:33:29,308 INFO L231 Difference]: Finished difference. Result has 130 places, 137 transitions, 278 flow [2022-11-25 15:33:29,311 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=278, PETRI_PLACES=130, PETRI_TRANSITIONS=137} [2022-11-25 15:33:29,315 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2022-11-25 15:33:29,315 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 137 transitions, 278 flow [2022-11-25 15:33:29,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 232.5) internal successors, (465), 2 states have internal predecessors, (465), 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) [2022-11-25 15:33:29,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:29,328 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:33:29,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:33:29,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:29,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:29,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1893619932, now seen corresponding path program 1 times [2022-11-25 15:33:29,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:29,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521805394] [2022-11-25 15:33:29,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:29,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:29,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:29,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521805394] [2022-11-25 15:33:29,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521805394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:29,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:29,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:29,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568043030] [2022-11-25 15:33:29,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:29,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:29,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:29,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:29,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 367 [2022-11-25 15:33:29,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 137 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2022-11-25 15:33:29,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:29,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 367 [2022-11-25 15:33:29,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:30,234 INFO L130 PetriNetUnfolder]: 2331/5758 cut-off events. [2022-11-25 15:33:30,234 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:33:30,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9196 conditions, 5758 events. 2331/5758 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 45744 event pairs, 1683 based on Foata normal form. 0/4992 useless extension candidates. Maximal degree in co-relation 9193. Up to 3111 conditions per place. [2022-11-25 15:33:30,278 INFO L137 encePairwiseOnDemand]: 362/367 looper letters, 80 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2022-11-25 15:33:30,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 165 transitions, 504 flow [2022-11-25 15:33:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2022-11-25 15:33:30,281 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6821071752951862 [2022-11-25 15:33:30,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2022-11-25 15:33:30,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2022-11-25 15:33:30,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:30,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2022-11-25 15:33:30,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2022-11-25 15:33:30,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:30,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:30,290 INFO L175 Difference]: Start difference. First operand has 130 places, 137 transitions, 278 flow. Second operand 3 states and 751 transitions. [2022-11-25 15:33:30,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 165 transitions, 504 flow [2022-11-25 15:33:30,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 165 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:33:30,298 INFO L231 Difference]: Finished difference. Result has 134 places, 140 transitions, 308 flow [2022-11-25 15:33:30,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=134, PETRI_TRANSITIONS=140} [2022-11-25 15:33:30,300 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 0 predicate places. [2022-11-25 15:33:30,300 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 140 transitions, 308 flow [2022-11-25 15:33:30,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2022-11-25 15:33:30,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:30,301 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:30,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:33:30,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:30,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash 767279324, now seen corresponding path program 1 times [2022-11-25 15:33:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:30,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189233140] [2022-11-25 15:33:30,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:30,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:30,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189233140] [2022-11-25 15:33:30,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189233140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:30,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:30,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:30,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626063079] [2022-11-25 15:33:30,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:30,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:30,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:30,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:30,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:30,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 367 [2022-11-25 15:33:30,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 140 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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) [2022-11-25 15:33:30,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:30,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 367 [2022-11-25 15:33:30,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:31,124 INFO L130 PetriNetUnfolder]: 2351/5892 cut-off events. [2022-11-25 15:33:31,124 INFO L131 PetriNetUnfolder]: For 361/405 co-relation queries the response was YES. [2022-11-25 15:33:31,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9746 conditions, 5892 events. 2351/5892 cut-off events. For 361/405 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 47805 event pairs, 1657 based on Foata normal form. 0/5126 useless extension candidates. Maximal degree in co-relation 9741. Up to 3169 conditions per place. [2022-11-25 15:33:31,170 INFO L137 encePairwiseOnDemand]: 362/367 looper letters, 81 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2022-11-25 15:33:31,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 169 transitions, 547 flow [2022-11-25 15:33:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:31,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2022-11-25 15:33:31,173 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6811989100817438 [2022-11-25 15:33:31,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2022-11-25 15:33:31,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2022-11-25 15:33:31,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:31,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2022-11-25 15:33:31,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2022-11-25 15:33:31,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:31,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:31,181 INFO L175 Difference]: Start difference. First operand has 134 places, 140 transitions, 308 flow. Second operand 3 states and 750 transitions. [2022-11-25 15:33:31,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 169 transitions, 547 flow [2022-11-25 15:33:31,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 169 transitions, 535 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:33:31,186 INFO L231 Difference]: Finished difference. Result has 136 places, 143 transitions, 330 flow [2022-11-25 15:33:31,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=136, PETRI_TRANSITIONS=143} [2022-11-25 15:33:31,188 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 2 predicate places. [2022-11-25 15:33:31,188 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 143 transitions, 330 flow [2022-11-25 15:33:31,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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) [2022-11-25 15:33:31,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:31,189 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:31,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:33:31,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:31,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:31,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1563218638, now seen corresponding path program 1 times [2022-11-25 15:33:31,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:31,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415659320] [2022-11-25 15:33:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:31,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:31,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415659320] [2022-11-25 15:33:31,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415659320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:31,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:31,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264465731] [2022-11-25 15:33:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:31,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:31,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 367 [2022-11-25 15:33:31,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 143 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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) [2022-11-25 15:33:31,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:31,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 367 [2022-11-25 15:33:31,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:32,013 INFO L130 PetriNetUnfolder]: 2460/6275 cut-off events. [2022-11-25 15:33:32,013 INFO L131 PetriNetUnfolder]: For 510/590 co-relation queries the response was YES. [2022-11-25 15:33:32,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10545 conditions, 6275 events. 2460/6275 cut-off events. For 510/590 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 51987 event pairs, 1700 based on Foata normal form. 0/5493 useless extension candidates. Maximal degree in co-relation 10539. Up to 3348 conditions per place. [2022-11-25 15:33:32,054 INFO L137 encePairwiseOnDemand]: 361/367 looper letters, 81 selfloop transitions, 5 changer transitions 0/172 dead transitions. [2022-11-25 15:33:32,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 172 transitions, 572 flow [2022-11-25 15:33:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-25 15:33:32,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6839237057220708 [2022-11-25 15:33:32,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-25 15:33:32,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-25 15:33:32,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:32,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-25 15:33:32,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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) [2022-11-25 15:33:32,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:32,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:32,065 INFO L175 Difference]: Start difference. First operand has 136 places, 143 transitions, 330 flow. Second operand 3 states and 753 transitions. [2022-11-25 15:33:32,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 172 transitions, 572 flow [2022-11-25 15:33:32,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 172 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:33:32,070 INFO L231 Difference]: Finished difference. Result has 138 places, 147 transitions, 360 flow [2022-11-25 15:33:32,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=138, PETRI_TRANSITIONS=147} [2022-11-25 15:33:32,072 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2022-11-25 15:33:32,072 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 147 transitions, 360 flow [2022-11-25 15:33:32,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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) [2022-11-25 15:33:32,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:32,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:32,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:33:32,074 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:32,074 INFO L85 PathProgramCache]: Analyzing trace with hash 203219737, now seen corresponding path program 1 times [2022-11-25 15:33:32,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:32,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911797942] [2022-11-25 15:33:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:32,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:32,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:32,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911797942] [2022-11-25 15:33:32,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911797942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:32,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:32,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998425148] [2022-11-25 15:33:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:32,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:32,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:32,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 367 [2022-11-25 15:33:32,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 147 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2022-11-25 15:33:32,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:32,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 367 [2022-11-25 15:33:32,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:33,063 INFO L130 PetriNetUnfolder]: 2451/6328 cut-off events. [2022-11-25 15:33:33,063 INFO L131 PetriNetUnfolder]: For 677/811 co-relation queries the response was YES. [2022-11-25 15:33:33,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10914 conditions, 6328 events. 2451/6328 cut-off events. For 677/811 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 52964 event pairs, 1717 based on Foata normal form. 14/5536 useless extension candidates. Maximal degree in co-relation 10907. Up to 3473 conditions per place. [2022-11-25 15:33:33,109 INFO L137 encePairwiseOnDemand]: 362/367 looper letters, 83 selfloop transitions, 5 changer transitions 0/176 dead transitions. [2022-11-25 15:33:33,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 176 transitions, 611 flow [2022-11-25 15:33:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:33,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2022-11-25 15:33:33,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6821071752951862 [2022-11-25 15:33:33,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2022-11-25 15:33:33,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2022-11-25 15:33:33,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:33,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2022-11-25 15:33:33,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2022-11-25 15:33:33,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:33,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:33,121 INFO L175 Difference]: Start difference. First operand has 138 places, 147 transitions, 360 flow. Second operand 3 states and 751 transitions. [2022-11-25 15:33:33,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 176 transitions, 611 flow [2022-11-25 15:33:33,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 176 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:33:33,128 INFO L231 Difference]: Finished difference. Result has 139 places, 150 transitions, 381 flow [2022-11-25 15:33:33,129 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=139, PETRI_TRANSITIONS=150} [2022-11-25 15:33:33,130 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2022-11-25 15:33:33,130 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 150 transitions, 381 flow [2022-11-25 15:33:33,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2022-11-25 15:33:33,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:33,131 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:33,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:33:33,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash 985470675, now seen corresponding path program 1 times [2022-11-25 15:33:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:33,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585410433] [2022-11-25 15:33:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:33,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:33,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585410433] [2022-11-25 15:33:33,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585410433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:33,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:33,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:33,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699974226] [2022-11-25 15:33:33,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:33,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:33,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:33,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 367 [2022-11-25 15:33:33,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 150 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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) [2022-11-25 15:33:33,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:33,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 367 [2022-11-25 15:33:33,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:35,039 INFO L130 PetriNetUnfolder]: 6282/13789 cut-off events. [2022-11-25 15:33:35,040 INFO L131 PetriNetUnfolder]: For 1518/1820 co-relation queries the response was YES. [2022-11-25 15:33:35,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25715 conditions, 13789 events. 6282/13789 cut-off events. For 1518/1820 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 116832 event pairs, 2015 based on Foata normal form. 24/12387 useless extension candidates. Maximal degree in co-relation 25707. Up to 5595 conditions per place. [2022-11-25 15:33:35,159 INFO L137 encePairwiseOnDemand]: 337/367 looper letters, 129 selfloop transitions, 23 changer transitions 0/221 dead transitions. [2022-11-25 15:33:35,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 221 transitions, 870 flow [2022-11-25 15:33:35,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 757 transitions. [2022-11-25 15:33:35,163 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6875567665758402 [2022-11-25 15:33:35,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 757 transitions. [2022-11-25 15:33:35,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 757 transitions. [2022-11-25 15:33:35,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:35,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 757 transitions. [2022-11-25 15:33:35,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 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) [2022-11-25 15:33:35,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:35,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:35,173 INFO L175 Difference]: Start difference. First operand has 139 places, 150 transitions, 381 flow. Second operand 3 states and 757 transitions. [2022-11-25 15:33:35,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 221 transitions, 870 flow [2022-11-25 15:33:35,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 221 transitions, 861 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:33:35,185 INFO L231 Difference]: Finished difference. Result has 142 places, 173 transitions, 580 flow [2022-11-25 15:33:35,185 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=580, PETRI_PLACES=142, PETRI_TRANSITIONS=173} [2022-11-25 15:33:35,188 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2022-11-25 15:33:35,189 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 173 transitions, 580 flow [2022-11-25 15:33:35,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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) [2022-11-25 15:33:35,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:35,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:35,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:33:35,196 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:35,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:35,198 INFO L85 PathProgramCache]: Analyzing trace with hash -683234448, now seen corresponding path program 1 times [2022-11-25 15:33:35,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:35,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028853701] [2022-11-25 15:33:35,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:35,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:35,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:35,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028853701] [2022-11-25 15:33:35,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028853701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:35,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:35,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:35,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236089808] [2022-11-25 15:33:35,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:35,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:35,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:35,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:35,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:35,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 367 [2022-11-25 15:33:35,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 173 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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) [2022-11-25 15:33:35,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:35,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 367 [2022-11-25 15:33:35,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:37,136 INFO L130 PetriNetUnfolder]: 5430/12823 cut-off events. [2022-11-25 15:33:37,137 INFO L131 PetriNetUnfolder]: For 4488/4962 co-relation queries the response was YES. [2022-11-25 15:33:37,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26264 conditions, 12823 events. 5430/12823 cut-off events. For 4488/4962 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 113782 event pairs, 3486 based on Foata normal form. 76/11741 useless extension candidates. Maximal degree in co-relation 26255. Up to 7956 conditions per place. [2022-11-25 15:33:37,238 INFO L137 encePairwiseOnDemand]: 358/367 looper letters, 104 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2022-11-25 15:33:37,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 210 transitions, 944 flow [2022-11-25 15:33:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:37,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2022-11-25 15:33:37,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6684831970935513 [2022-11-25 15:33:37,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2022-11-25 15:33:37,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2022-11-25 15:33:37,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:37,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2022-11-25 15:33:37,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 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) [2022-11-25 15:33:37,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:37,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:37,251 INFO L175 Difference]: Start difference. First operand has 142 places, 173 transitions, 580 flow. Second operand 3 states and 736 transitions. [2022-11-25 15:33:37,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 210 transitions, 944 flow [2022-11-25 15:33:37,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 210 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:33:37,265 INFO L231 Difference]: Finished difference. Result has 143 places, 185 transitions, 648 flow [2022-11-25 15:33:37,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=143, PETRI_TRANSITIONS=185} [2022-11-25 15:33:37,266 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places. [2022-11-25 15:33:37,267 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 185 transitions, 648 flow [2022-11-25 15:33:37,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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) [2022-11-25 15:33:37,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:37,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:37,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:33:37,272 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:37,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:37,275 INFO L85 PathProgramCache]: Analyzing trace with hash -683270999, now seen corresponding path program 1 times [2022-11-25 15:33:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:37,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202325087] [2022-11-25 15:33:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:37,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:37,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:37,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202325087] [2022-11-25 15:33:37,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202325087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:37,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:37,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:33:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212498792] [2022-11-25 15:33:37,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:37,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:37,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:37,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 367 [2022-11-25 15:33:37,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 185 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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) [2022-11-25 15:33:37,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:37,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 367 [2022-11-25 15:33:37,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:38,736 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][169], [139#L727-2true, 235#true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), thr2Thread1of1ForFork1InUse, Black: 261#true, 267#true, 158#L693-1true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 272#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,737 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,737 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,737 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,737 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,737 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][169], [235#true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), thr2Thread1of1ForFork1InUse, Black: 261#true, 267#true, 158#L693-1true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 39#L727-1true, 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 272#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,738 INFO L383 tUnfolder$Statistics]: this new event has 46 ancestors and is cut-off event [2022-11-25 15:33:38,738 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2022-11-25 15:33:38,738 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-11-25 15:33:38,738 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2022-11-25 15:33:38,738 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([690] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][194], [235#true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), thr2Thread1of1ForFork1InUse, Black: 261#true, 134#L693-4true, 267#true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 147#L727-4true, 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 272#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,738 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,739 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][195], [235#true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 274#(= ~y~0 0), thr2Thread1of1ForFork1InUse, Black: 261#true, 134#L693-4true, 267#true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), 4#L727-5true, Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,739 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,740 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,740 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,775 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][169], [235#true, 99#L743-6true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), thr2Thread1of1ForFork1InUse, Black: 261#true, 267#true, 158#L693-1true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 39#L727-1true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 272#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,775 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,776 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-11-25 15:33:38,776 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,776 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-11-25 15:33:38,776 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][169], [139#L727-2true, 235#true, 99#L743-6true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), thr2Thread1of1ForFork1InUse, Black: 261#true, 267#true, 158#L693-1true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 272#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,776 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-11-25 15:33:38,776 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-11-25 15:33:38,777 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-11-25 15:33:38,777 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-11-25 15:33:38,777 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([690] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][194], [235#true, 99#L743-6true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), thr2Thread1of1ForFork1InUse, Black: 261#true, 134#L693-4true, 267#true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 147#L727-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 272#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,777 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-11-25 15:33:38,777 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-11-25 15:33:38,777 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-11-25 15:33:38,778 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-11-25 15:33:38,778 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][195], [235#true, 99#L743-6true, Black: 258#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 274#(= ~y~0 0), thr2Thread1of1ForFork1InUse, Black: 261#true, 134#L693-4true, 267#true, Black: 269#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~y~0|), 4#L727-5true, Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-11-25 15:33:38,778 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-11-25 15:33:38,778 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-11-25 15:33:38,778 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-11-25 15:33:38,779 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-11-25 15:33:39,325 INFO L130 PetriNetUnfolder]: 7564/16869 cut-off events. [2022-11-25 15:33:39,325 INFO L131 PetriNetUnfolder]: For 3705/4569 co-relation queries the response was YES. [2022-11-25 15:33:39,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35293 conditions, 16869 events. 7564/16869 cut-off events. For 3705/4569 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 153832 event pairs, 2409 based on Foata normal form. 380/15729 useless extension candidates. Maximal degree in co-relation 35283. Up to 6214 conditions per place. [2022-11-25 15:33:39,460 INFO L137 encePairwiseOnDemand]: 348/367 looper letters, 140 selfloop transitions, 11 changer transitions 0/252 dead transitions. [2022-11-25 15:33:39,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 252 transitions, 1157 flow [2022-11-25 15:33:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:39,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2022-11-25 15:33:39,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.695731153496821 [2022-11-25 15:33:39,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2022-11-25 15:33:39,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2022-11-25 15:33:39,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:39,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2022-11-25 15:33:39,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 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) [2022-11-25 15:33:39,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:39,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 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) [2022-11-25 15:33:39,471 INFO L175 Difference]: Start difference. First operand has 143 places, 185 transitions, 648 flow. Second operand 3 states and 766 transitions. [2022-11-25 15:33:39,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 252 transitions, 1157 flow [2022-11-25 15:33:39,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 252 transitions, 1141 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:33:39,485 INFO L231 Difference]: Finished difference. Result has 146 places, 195 transitions, 738 flow [2022-11-25 15:33:39,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=146, PETRI_TRANSITIONS=195} [2022-11-25 15:33:39,489 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2022-11-25 15:33:39,490 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 195 transitions, 738 flow [2022-11-25 15:33:39,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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) [2022-11-25 15:33:39,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:39,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:33:39,491 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 15:33:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash -275817767, now seen corresponding path program 1 times [2022-11-25 15:33:39,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:39,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041513245] [2022-11-25 15:33:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:33:39,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:33:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:33:39,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:33:39,579 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:33:39,581 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2022-11-25 15:33:39,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2022-11-25 15:33:39,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2022-11-25 15:33:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2022-11-25 15:33:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2022-11-25 15:33:39,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2022-11-25 15:33:39,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2022-11-25 15:33:39,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2022-11-25 15:33:39,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2022-11-25 15:33:39,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2022-11-25 15:33:39,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2022-11-25 15:33:39,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2022-11-25 15:33:39,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2022-11-25 15:33:39,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2022-11-25 15:33:39,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2022-11-25 15:33:39,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2022-11-25 15:33:39,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2022-11-25 15:33:39,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2022-11-25 15:33:39,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2022-11-25 15:33:39,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2022-11-25 15:33:39,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2022-11-25 15:33:39,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2022-11-25 15:33:39,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2022-11-25 15:33:39,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2022-11-25 15:33:39,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2022-11-25 15:33:39,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2022-11-25 15:33:39,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2022-11-25 15:33:39,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2022-11-25 15:33:39,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2022-11-25 15:33:39,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2022-11-25 15:33:39,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2022-11-25 15:33:39,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2022-11-25 15:33:39,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2022-11-25 15:33:39,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 64 remaining) [2022-11-25 15:33:39,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 64 remaining) [2022-11-25 15:33:39,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2022-11-25 15:33:39,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2022-11-25 15:33:39,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2022-11-25 15:33:39,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2022-11-25 15:33:39,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2022-11-25 15:33:39,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2022-11-25 15:33:39,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2022-11-25 15:33:39,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2022-11-25 15:33:39,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2022-11-25 15:33:39,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2022-11-25 15:33:39,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2022-11-25 15:33:39,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2022-11-25 15:33:39,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2022-11-25 15:33:39,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2022-11-25 15:33:39,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2022-11-25 15:33:39,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2022-11-25 15:33:39,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2022-11-25 15:33:39,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2022-11-25 15:33:39,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2022-11-25 15:33:39,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2022-11-25 15:33:39,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2022-11-25 15:33:39,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2022-11-25 15:33:39,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2022-11-25 15:33:39,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2022-11-25 15:33:39,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2022-11-25 15:33:39,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2022-11-25 15:33:39,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2022-11-25 15:33:39,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2022-11-25 15:33:39,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2022-11-25 15:33:39,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:33:39,618 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:33:39,630 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:33:39,630 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:33:39,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:33:39 BasicIcfg [2022-11-25 15:33:39,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:33:39,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:33:39,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:33:39,702 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:33:39,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:24" (3/4) ... [2022-11-25 15:33:39,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:33:39,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:33:39,706 INFO L158 Benchmark]: Toolchain (without parser) took 17081.62ms. Allocated memory was 159.4MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 126.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 451.1MB. Max. memory is 16.1GB. [2022-11-25 15:33:39,707 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:33:39,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.02ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 106.4MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 15:33:39,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.71ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:33:39,710 INFO L158 Benchmark]: Boogie Preprocessor took 51.68ms. Allocated memory is still 159.4MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:33:39,710 INFO L158 Benchmark]: RCFGBuilder took 728.62ms. Allocated memory is still 159.4MB. Free memory was 102.2MB in the beginning and 82.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 15:33:39,711 INFO L158 Benchmark]: TraceAbstraction took 15670.58ms. Allocated memory was 159.4MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 81.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 407.1MB. Max. memory is 16.1GB. [2022-11-25 15:33:39,711 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:33:39,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.02ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 106.4MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.71ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.68ms. Allocated memory is still 159.4MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 728.62ms. Allocated memory is still 159.4MB. Free memory was 102.2MB in the beginning and 82.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 15670.58ms. Allocated memory was 159.4MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 81.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 407.1MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 220 PlacesBefore, 134 PlacesAfterwards, 237 TransitionsBefore, 151 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 118 TotalNumberOfCompositions, 128870 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43684, independent: 42260, independent conditional: 0, independent unconditional: 42260, dependent: 1424, dependent conditional: 0, dependent unconditional: 1424, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14784, independent: 14530, independent conditional: 0, independent unconditional: 14530, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14784, independent: 14413, independent conditional: 0, independent unconditional: 14413, dependent: 371, dependent conditional: 0, dependent unconditional: 371, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 371, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 396, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 294, dependent conditional: 0, dependent unconditional: 294, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43684, independent: 27730, independent conditional: 0, independent unconditional: 27730, dependent: 1170, dependent conditional: 0, dependent unconditional: 1170, unknown: 14784, unknown conditional: 0, unknown unconditional: 14784] , Statistics on independence cache: Total cache size (in pairs): 4460, Positive cache size: 4291, Positive conditional cache size: 0, Positive unconditional cache size: 4291, Negative cache size: 169, Negative conditional cache size: 0, Negative unconditional cache size: 169, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={3:0}, t2={5:0}, X=0, x=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, b1=0, b2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={3:0}, t2={5:0}, X=0, x=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, X=0, x=0, y=0] [L690] 1 x = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, X=0, x=1, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x=2, X=0, y=0] [L690] 1 x = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, X=0, x=2, x = 1=51, x = 2=52, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: 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: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that 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: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: 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: 689]: 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: 709]: 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: 710]: 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: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: 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: 742]: 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, 396 locations, 64 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: 15.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 544 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 303 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1165 IncrementalHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 72 mSDtfsCounter, 1165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=738occurred in iteration=8, InterpolantAutomatonStates: 23, 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, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-11-25 15:33:39,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8016fa8-2ee5-40dc-b622-088bfe67a72c/bin/uautomizer-ZsLfNo2U6R/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