./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e064514c886eab27bff1253cfa87b1ac324d3dc8890599c3d4384e987c0d244 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:37:47,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:37:47,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:37:47,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:37:47,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:37:47,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:37:47,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:37:47,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:37:47,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:37:47,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:37:47,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:37:47,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:37:47,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:37:47,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:37:47,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:37:47,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:37:47,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:37:47,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:37:47,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:37:47,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:37:47,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:37:47,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:37:47,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:37:47,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:37:47,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:37:47,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:37:47,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:37:47,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:37:47,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:37:47,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:37:47,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:37:47,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:37:47,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:37:47,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:37:47,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:37:47,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:37:47,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:37:47,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:37:47,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:37:47,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:37:47,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:37:47,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:37:47,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:37:47,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:37:47,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:37:47,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:37:47,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:37:47,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:37:47,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:37:47,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:37:47,336 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:37:47,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:37:47,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:37:47,337 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:37:47,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:37:47,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:37:47,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:37:47,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:37:47,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:37:47,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:37:47,339 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:37:47,339 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:37:47,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:37:47,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:37:47,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:37:47,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:37:47,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:37:47,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:37:47,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:37:47,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:37:47,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:37:47,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:37:47,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:37:47,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:37:47,342 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:37:47,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:37:47,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:37:47,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e064514c886eab27bff1253cfa87b1ac324d3dc8890599c3d4384e987c0d244 [2022-11-16 11:37:47,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:37:47,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:37:47,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:37:47,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:37:47,619 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:37:47,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c [2022-11-16 11:37:47,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/data/b62ddf4c4/1dcfcf1ecdb34a379a048b0653267b90/FLAGe671dff35 [2022-11-16 11:37:48,273 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:37:48,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c [2022-11-16 11:37:48,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/data/b62ddf4c4/1dcfcf1ecdb34a379a048b0653267b90/FLAGe671dff35 [2022-11-16 11:37:48,597 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/data/b62ddf4c4/1dcfcf1ecdb34a379a048b0653267b90 [2022-11-16 11:37:48,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:37:48,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:37:48,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:37:48,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:37:48,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:37:48,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac79a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48, skipping insertion in model container [2022-11-16 11:37:48,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:37:48,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:37:48,857 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-11-16 11:37:48,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:37:48,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:37:48,892 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-11-16 11:37:48,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:37:48,912 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:37:48,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48 WrapperNode [2022-11-16 11:37:48,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:37:48,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:37:48,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:37:48,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:37:48,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,964 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2022-11-16 11:37:48,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:37:48,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:37:48,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:37:48,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:37:48,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:48,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:49,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:49,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:49,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:49,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:49,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:37:49,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:37:49,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:37:49,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:37:49,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (1/1) ... [2022-11-16 11:37:49,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:37:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:37:49,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:37:49,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:37:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:37:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:37:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:37:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:37:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:37:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:37:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:37:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:37:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:37:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:37:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:37:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:37:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:37:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:37:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:37:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:37:49,141 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:37:49,243 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:37:49,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:37:49,645 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:37:49,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:37:49,728 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:37:49,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:37:49 BoogieIcfgContainer [2022-11-16 11:37:49,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:37:49,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:37:49,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:37:49,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:37:49,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:37:48" (1/3) ... [2022-11-16 11:37:49,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c231c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:37:49, skipping insertion in model container [2022-11-16 11:37:49,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:48" (2/3) ... [2022-11-16 11:37:49,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c231c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:37:49, skipping insertion in model container [2022-11-16 11:37:49,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:37:49" (3/3) ... [2022-11-16 11:37:49,752 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-11-16 11:37:49,766 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:37:49,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:37:49,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 11:37:49,777 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:37:49,870 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:37:49,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 174 transitions, 372 flow [2022-11-16 11:37:49,992 INFO L130 PetriNetUnfolder]: 2/171 cut-off events. [2022-11-16 11:37:49,992 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:37:49,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 171 events. 2/171 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-11-16 11:37:49,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 174 transitions, 372 flow [2022-11-16 11:37:50,003 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 151 transitions, 320 flow [2022-11-16 11:37:50,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:37:50,033 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;@2371cb87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:37:50,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-16 11:37:50,054 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-11-16 11:37:50,057 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:37:50,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:50,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:50,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:50,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:50,065 INFO L85 PathProgramCache]: Analyzing trace with hash 84275996, now seen corresponding path program 1 times [2022-11-16 11:37:50,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:50,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959148844] [2022-11-16 11:37:50,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:50,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:50,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:50,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959148844] [2022-11-16 11:37:50,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959148844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:50,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:50,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:50,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717976190] [2022-11-16 11:37:50,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:50,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:50,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:50,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:50,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:50,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 174 [2022-11-16 11:37:50,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 151 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:50,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 174 [2022-11-16 11:37:50,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:50,610 INFO L130 PetriNetUnfolder]: 7/170 cut-off events. [2022-11-16 11:37:50,610 INFO L131 PetriNetUnfolder]: For 28/37 co-relation queries the response was YES. [2022-11-16 11:37:50,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 170 events. 7/170 cut-off events. For 28/37 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 217 event pairs, 7 based on Foata normal form. 1/149 useless extension candidates. Maximal degree in co-relation 114. Up to 31 conditions per place. [2022-11-16 11:37:50,615 INFO L137 encePairwiseOnDemand]: 166/174 looper letters, 17 selfloop transitions, 2 changer transitions 1/145 dead transitions. [2022-11-16 11:37:50,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 145 transitions, 346 flow [2022-11-16 11:37:50,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2022-11-16 11:37:50,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.89272030651341 [2022-11-16 11:37:50,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2022-11-16 11:37:50,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2022-11-16 11:37:50,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:50,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2022-11-16 11:37:50,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,672 INFO L175 Difference]: Start difference. First operand has 160 places, 151 transitions, 320 flow. Second operand 3 states and 466 transitions. [2022-11-16 11:37:50,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 145 transitions, 346 flow [2022-11-16 11:37:50,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 145 transitions, 334 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:37:50,690 INFO L231 Difference]: Finished difference. Result has 151 places, 144 transitions, 298 flow [2022-11-16 11:37:50,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=151, PETRI_TRANSITIONS=144} [2022-11-16 11:37:50,696 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -9 predicate places. [2022-11-16 11:37:50,696 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 144 transitions, 298 flow [2022-11-16 11:37:50,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:50,698 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:50,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:37:50,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:50,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:50,701 INFO L85 PathProgramCache]: Analyzing trace with hash 555047242, now seen corresponding path program 1 times [2022-11-16 11:37:50,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:50,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733577595] [2022-11-16 11:37:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:50,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733577595] [2022-11-16 11:37:50,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733577595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:50,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:50,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938156876] [2022-11-16 11:37:50,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:50,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:50,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:50,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:50,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:50,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-11-16 11:37:50,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 144 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:50,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-11-16 11:37:50,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:50,967 INFO L130 PetriNetUnfolder]: 103/492 cut-off events. [2022-11-16 11:37:50,968 INFO L131 PetriNetUnfolder]: For 40/52 co-relation queries the response was YES. [2022-11-16 11:37:50,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 492 events. 103/492 cut-off events. For 40/52 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2219 event pairs, 103 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 685. Up to 210 conditions per place. [2022-11-16 11:37:50,976 INFO L137 encePairwiseOnDemand]: 171/174 looper letters, 28 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2022-11-16 11:37:50,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 143 transitions, 356 flow [2022-11-16 11:37:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2022-11-16 11:37:50,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8352490421455939 [2022-11-16 11:37:50,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2022-11-16 11:37:50,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2022-11-16 11:37:50,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:50,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2022-11-16 11:37:50,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,986 INFO L175 Difference]: Start difference. First operand has 151 places, 144 transitions, 298 flow. Second operand 3 states and 436 transitions. [2022-11-16 11:37:50,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 143 transitions, 356 flow [2022-11-16 11:37:50,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:50,993 INFO L231 Difference]: Finished difference. Result has 149 places, 143 transitions, 296 flow [2022-11-16 11:37:50,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2022-11-16 11:37:50,996 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -11 predicate places. [2022-11-16 11:37:50,997 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 296 flow [2022-11-16 11:37:50,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:50,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:50,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:37:50,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:51,000 INFO L85 PathProgramCache]: Analyzing trace with hash -226983074, now seen corresponding path program 1 times [2022-11-16 11:37:51,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:51,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950018665] [2022-11-16 11:37:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:51,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:51,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:51,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950018665] [2022-11-16 11:37:51,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950018665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:51,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:51,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116764577] [2022-11-16 11:37:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:51,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:51,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 174 [2022-11-16 11:37:51,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:51,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 174 [2022-11-16 11:37:51,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:51,264 INFO L130 PetriNetUnfolder]: 103/485 cut-off events. [2022-11-16 11:37:51,265 INFO L131 PetriNetUnfolder]: For 40/71 co-relation queries the response was YES. [2022-11-16 11:37:51,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 485 events. 103/485 cut-off events. For 40/71 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2239 event pairs, 103 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 667. Up to 205 conditions per place. [2022-11-16 11:37:51,270 INFO L137 encePairwiseOnDemand]: 171/174 looper letters, 23 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2022-11-16 11:37:51,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 142 transitions, 344 flow [2022-11-16 11:37:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2022-11-16 11:37:51,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8601532567049809 [2022-11-16 11:37:51,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2022-11-16 11:37:51,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2022-11-16 11:37:51,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:51,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2022-11-16 11:37:51,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,278 INFO L175 Difference]: Start difference. First operand has 149 places, 143 transitions, 296 flow. Second operand 3 states and 449 transitions. [2022-11-16 11:37:51,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 142 transitions, 344 flow [2022-11-16 11:37:51,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 142 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:51,285 INFO L231 Difference]: Finished difference. Result has 148 places, 142 transitions, 294 flow [2022-11-16 11:37:51,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=148, PETRI_TRANSITIONS=142} [2022-11-16 11:37:51,288 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -12 predicate places. [2022-11-16 11:37:51,288 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 142 transitions, 294 flow [2022-11-16 11:37:51,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:51,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:51,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:37:51,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:51,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash 841028930, now seen corresponding path program 1 times [2022-11-16 11:37:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:51,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898075963] [2022-11-16 11:37:51,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:51,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:51,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:51,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:51,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898075963] [2022-11-16 11:37:51,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898075963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:51,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:51,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:51,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983285160] [2022-11-16 11:37:51,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:51,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:51,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:51,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:51,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 174 [2022-11-16 11:37:51,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 142 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:51,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 174 [2022-11-16 11:37:51,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:51,412 INFO L130 PetriNetUnfolder]: 7/165 cut-off events. [2022-11-16 11:37:51,412 INFO L131 PetriNetUnfolder]: For 4/13 co-relation queries the response was YES. [2022-11-16 11:37:51,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 165 events. 7/165 cut-off events. For 4/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 1 based on Foata normal form. 2/152 useless extension candidates. Maximal degree in co-relation 161. Up to 21 conditions per place. [2022-11-16 11:37:51,414 INFO L137 encePairwiseOnDemand]: 168/174 looper letters, 14 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2022-11-16 11:37:51,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 144 transitions, 336 flow [2022-11-16 11:37:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:51,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2022-11-16 11:37:51,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9003831417624522 [2022-11-16 11:37:51,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2022-11-16 11:37:51,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2022-11-16 11:37:51,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:51,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2022-11-16 11:37:51,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,420 INFO L175 Difference]: Start difference. First operand has 148 places, 142 transitions, 294 flow. Second operand 3 states and 470 transitions. [2022-11-16 11:37:51,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 144 transitions, 336 flow [2022-11-16 11:37:51,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 144 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:51,424 INFO L231 Difference]: Finished difference. Result has 147 places, 142 transitions, 306 flow [2022-11-16 11:37:51,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=147, PETRI_TRANSITIONS=142} [2022-11-16 11:37:51,425 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -13 predicate places. [2022-11-16 11:37:51,425 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 142 transitions, 306 flow [2022-11-16 11:37:51,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:51,426 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:51,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:37:51,426 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:51,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:51,427 INFO L85 PathProgramCache]: Analyzing trace with hash 774958258, now seen corresponding path program 1 times [2022-11-16 11:37:51,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:51,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343033134] [2022-11-16 11:37:51,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:51,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:51,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:51,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343033134] [2022-11-16 11:37:51,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343033134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:51,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:51,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:51,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490760127] [2022-11-16 11:37:51,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:51,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:51,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:51,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:51,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:51,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2022-11-16 11:37:51,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 142 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:51,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2022-11-16 11:37:51,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:51,592 INFO L130 PetriNetUnfolder]: 87/457 cut-off events. [2022-11-16 11:37:51,593 INFO L131 PetriNetUnfolder]: For 90/99 co-relation queries the response was YES. [2022-11-16 11:37:51,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 457 events. 87/457 cut-off events. For 90/99 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2041 event pairs, 33 based on Foata normal form. 1/402 useless extension candidates. Maximal degree in co-relation 396. Up to 94 conditions per place. [2022-11-16 11:37:51,596 INFO L137 encePairwiseOnDemand]: 165/174 looper letters, 25 selfloop transitions, 4 changer transitions 5/144 dead transitions. [2022-11-16 11:37:51,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 144 transitions, 384 flow [2022-11-16 11:37:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:51,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2022-11-16 11:37:51,598 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8524904214559387 [2022-11-16 11:37:51,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2022-11-16 11:37:51,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2022-11-16 11:37:51,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:51,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2022-11-16 11:37:51,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,602 INFO L175 Difference]: Start difference. First operand has 147 places, 142 transitions, 306 flow. Second operand 3 states and 445 transitions. [2022-11-16 11:37:51,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 144 transitions, 384 flow [2022-11-16 11:37:51,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:37:51,606 INFO L231 Difference]: Finished difference. Result has 144 places, 133 transitions, 289 flow [2022-11-16 11:37:51,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=144, PETRI_TRANSITIONS=133} [2022-11-16 11:37:51,610 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -16 predicate places. [2022-11-16 11:37:51,610 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 133 transitions, 289 flow [2022-11-16 11:37:51,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:51,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:51,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:37:51,611 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:51,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1512859428, now seen corresponding path program 1 times [2022-11-16 11:37:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:51,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819294585] [2022-11-16 11:37:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:51,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:51,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:51,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819294585] [2022-11-16 11:37:51,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819294585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:51,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:51,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90789412] [2022-11-16 11:37:51,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:51,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:51,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:51,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:51,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:51,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 174 [2022-11-16 11:37:51,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:51,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 174 [2022-11-16 11:37:51,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:51,859 INFO L130 PetriNetUnfolder]: 111/507 cut-off events. [2022-11-16 11:37:51,859 INFO L131 PetriNetUnfolder]: For 109/140 co-relation queries the response was YES. [2022-11-16 11:37:51,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 507 events. 111/507 cut-off events. For 109/140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2412 event pairs, 64 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 436. Up to 188 conditions per place. [2022-11-16 11:37:51,864 INFO L137 encePairwiseOnDemand]: 171/174 looper letters, 28 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2022-11-16 11:37:51,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 138 transitions, 369 flow [2022-11-16 11:37:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:51,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-16 11:37:51,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.867816091954023 [2022-11-16 11:37:51,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-16 11:37:51,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-16 11:37:51,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:51,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-16 11:37:51,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,870 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 289 flow. Second operand 3 states and 453 transitions. [2022-11-16 11:37:51,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 138 transitions, 369 flow [2022-11-16 11:37:51,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 138 transitions, 361 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:51,874 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 283 flow [2022-11-16 11:37:51,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2022-11-16 11:37:51,876 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -22 predicate places. [2022-11-16 11:37:51,877 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 283 flow [2022-11-16 11:37:51,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:51,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:51,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:37:51,878 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:51,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:51,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1999451775, now seen corresponding path program 1 times [2022-11-16 11:37:51,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:51,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500769104] [2022-11-16 11:37:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:51,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:52,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:52,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:52,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500769104] [2022-11-16 11:37:52,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500769104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:52,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:52,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:37:52,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456121051] [2022-11-16 11:37:52,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:52,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:37:52,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:52,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:37:52,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:37:52,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-11-16 11:37:52,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:52,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-11-16 11:37:52,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:52,614 INFO L130 PetriNetUnfolder]: 37/214 cut-off events. [2022-11-16 11:37:52,614 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-16 11:37:52,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 214 events. 37/214 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 394 event pairs, 7 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 326. Up to 44 conditions per place. [2022-11-16 11:37:52,617 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 42 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2022-11-16 11:37:52,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 437 flow [2022-11-16 11:37:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:37:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:37:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 847 transitions. [2022-11-16 11:37:52,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8113026819923371 [2022-11-16 11:37:52,621 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 847 transitions. [2022-11-16 11:37:52,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 847 transitions. [2022-11-16 11:37:52,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:52,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 847 transitions. [2022-11-16 11:37:52,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.16666666666666) internal successors, (847), 6 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,626 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 283 flow. Second operand 6 states and 847 transitions. [2022-11-16 11:37:52,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 437 flow [2022-11-16 11:37:52,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 147 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:52,630 INFO L231 Difference]: Finished difference. Result has 140 places, 131 transitions, 285 flow [2022-11-16 11:37:52,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=140, PETRI_TRANSITIONS=131} [2022-11-16 11:37:52,631 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -20 predicate places. [2022-11-16 11:37:52,632 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 131 transitions, 285 flow [2022-11-16 11:37:52,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:52,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:52,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:37:52,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:52,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1791150701, now seen corresponding path program 1 times [2022-11-16 11:37:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:52,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132704875] [2022-11-16 11:37:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:52,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:52,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:52,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132704875] [2022-11-16 11:37:52,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132704875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:52,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:52,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:52,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405443156] [2022-11-16 11:37:52,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:52,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:52,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:52,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:52,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:52,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 174 [2022-11-16 11:37:52,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 131 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:52,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 174 [2022-11-16 11:37:52,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:52,798 INFO L130 PetriNetUnfolder]: 79/422 cut-off events. [2022-11-16 11:37:52,798 INFO L131 PetriNetUnfolder]: For 77/100 co-relation queries the response was YES. [2022-11-16 11:37:52,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 422 events. 79/422 cut-off events. For 77/100 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1812 event pairs, 40 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 529. Up to 98 conditions per place. [2022-11-16 11:37:52,801 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 23 selfloop transitions, 3 changer transitions 0/135 dead transitions. [2022-11-16 11:37:52,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 135 transitions, 355 flow [2022-11-16 11:37:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2022-11-16 11:37:52,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2022-11-16 11:37:52,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2022-11-16 11:37:52,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2022-11-16 11:37:52,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:52,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2022-11-16 11:37:52,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,811 INFO L175 Difference]: Start difference. First operand has 140 places, 131 transitions, 285 flow. Second operand 3 states and 456 transitions. [2022-11-16 11:37:52,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 135 transitions, 355 flow [2022-11-16 11:37:52,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 348 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:37:52,814 INFO L231 Difference]: Finished difference. Result has 136 places, 129 transitions, 280 flow [2022-11-16 11:37:52,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=136, PETRI_TRANSITIONS=129} [2022-11-16 11:37:52,817 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -24 predicate places. [2022-11-16 11:37:52,817 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 129 transitions, 280 flow [2022-11-16 11:37:52,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:52,818 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:52,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:37:52,818 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:52,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1568580010, now seen corresponding path program 1 times [2022-11-16 11:37:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:52,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325680721] [2022-11-16 11:37:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:52,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:52,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325680721] [2022-11-16 11:37:52,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325680721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:52,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:52,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553531662] [2022-11-16 11:37:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:52,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:52,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:52,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:52,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:52,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2022-11-16 11:37:52,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 129 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:52,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2022-11-16 11:37:52,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:52,962 INFO L130 PetriNetUnfolder]: 95/431 cut-off events. [2022-11-16 11:37:52,962 INFO L131 PetriNetUnfolder]: For 95/104 co-relation queries the response was YES. [2022-11-16 11:37:52,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 431 events. 95/431 cut-off events. For 95/104 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1853 event pairs, 68 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 599. Up to 160 conditions per place. [2022-11-16 11:37:52,965 INFO L137 encePairwiseOnDemand]: 171/174 looper letters, 28 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2022-11-16 11:37:52,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 134 transitions, 360 flow [2022-11-16 11:37:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-11-16 11:37:52,970 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-16 11:37:52,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-11-16 11:37:52,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-11-16 11:37:52,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:52,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-11-16 11:37:52,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,974 INFO L175 Difference]: Start difference. First operand has 136 places, 129 transitions, 280 flow. Second operand 3 states and 435 transitions. [2022-11-16 11:37:52,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 134 transitions, 360 flow [2022-11-16 11:37:52,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 134 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:52,978 INFO L231 Difference]: Finished difference. Result has 135 places, 128 transitions, 276 flow [2022-11-16 11:37:52,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=135, PETRI_TRANSITIONS=128} [2022-11-16 11:37:52,980 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -25 predicate places. [2022-11-16 11:37:52,980 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 128 transitions, 276 flow [2022-11-16 11:37:52,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:52,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:52,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:52,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:37:52,981 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash -903815857, now seen corresponding path program 1 times [2022-11-16 11:37:52,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:52,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75704539] [2022-11-16 11:37:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:52,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:53,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:53,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75704539] [2022-11-16 11:37:53,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75704539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:53,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:53,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:37:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174101254] [2022-11-16 11:37:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:53,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:37:53,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:37:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:37:53,419 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-11-16 11:37:53,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 128 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:53,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-11-16 11:37:53,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:53,521 INFO L130 PetriNetUnfolder]: 34/240 cut-off events. [2022-11-16 11:37:53,521 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-16 11:37:53,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 240 events. 34/240 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 535 event pairs, 22 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 336. Up to 68 conditions per place. [2022-11-16 11:37:53,524 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 29 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2022-11-16 11:37:53,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 131 transitions, 356 flow [2022-11-16 11:37:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:37:53,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:37:53,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 842 transitions. [2022-11-16 11:37:53,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8065134099616859 [2022-11-16 11:37:53,527 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 842 transitions. [2022-11-16 11:37:53,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 842 transitions. [2022-11-16 11:37:53,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:53,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 842 transitions. [2022-11-16 11:37:53,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.33333333333334) internal successors, (842), 6 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,532 INFO L175 Difference]: Start difference. First operand has 135 places, 128 transitions, 276 flow. Second operand 6 states and 842 transitions. [2022-11-16 11:37:53,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 131 transitions, 356 flow [2022-11-16 11:37:53,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 131 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:53,536 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 278 flow [2022-11-16 11:37:53,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=278, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2022-11-16 11:37:53,538 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -23 predicate places. [2022-11-16 11:37:53,538 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 278 flow [2022-11-16 11:37:53,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:53,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:53,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:37:53,539 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:53,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1947595891, now seen corresponding path program 1 times [2022-11-16 11:37:53,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:53,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734914034] [2022-11-16 11:37:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:53,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:53,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:53,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734914034] [2022-11-16 11:37:53,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734914034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:53,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:53,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:53,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356781432] [2022-11-16 11:37:53,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:53,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:53,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:53,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:53,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:53,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 174 [2022-11-16 11:37:53,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:53,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 174 [2022-11-16 11:37:53,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:53,674 INFO L130 PetriNetUnfolder]: 87/414 cut-off events. [2022-11-16 11:37:53,674 INFO L131 PetriNetUnfolder]: For 85/108 co-relation queries the response was YES. [2022-11-16 11:37:53,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 414 events. 87/414 cut-off events. For 85/108 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1724 event pairs, 61 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 570. Up to 143 conditions per place. [2022-11-16 11:37:53,677 INFO L137 encePairwiseOnDemand]: 171/174 looper letters, 25 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2022-11-16 11:37:53,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 132 transitions, 352 flow [2022-11-16 11:37:53,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-11-16 11:37:53,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8620689655172413 [2022-11-16 11:37:53,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-11-16 11:37:53,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-11-16 11:37:53,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:53,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-11-16 11:37:53,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,685 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 278 flow. Second operand 3 states and 450 transitions. [2022-11-16 11:37:53,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 132 transitions, 352 flow [2022-11-16 11:37:53,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 132 transitions, 345 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:37:53,688 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 273 flow [2022-11-16 11:37:53,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2022-11-16 11:37:53,689 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -26 predicate places. [2022-11-16 11:37:53,689 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 273 flow [2022-11-16 11:37:53,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:53,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:53,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:37:53,690 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:53,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:53,691 INFO L85 PathProgramCache]: Analyzing trace with hash 640426783, now seen corresponding path program 1 times [2022-11-16 11:37:53,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:53,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057010839] [2022-11-16 11:37:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:53,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:53,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:53,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057010839] [2022-11-16 11:37:53,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057010839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:53,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:53,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:37:53,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384772183] [2022-11-16 11:37:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:53,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:53,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:53,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:53,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:53,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2022-11-16 11:37:53,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:53,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2022-11-16 11:37:53,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:53,838 INFO L130 PetriNetUnfolder]: 87/408 cut-off events. [2022-11-16 11:37:53,838 INFO L131 PetriNetUnfolder]: For 87/96 co-relation queries the response was YES. [2022-11-16 11:37:53,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 408 events. 87/408 cut-off events. For 87/96 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1644 event pairs, 61 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 550. Up to 145 conditions per place. [2022-11-16 11:37:53,841 INFO L137 encePairwiseOnDemand]: 171/174 looper letters, 27 selfloop transitions, 2 changer transitions 1/131 dead transitions. [2022-11-16 11:37:53,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 131 transitions, 351 flow [2022-11-16 11:37:53,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:37:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:37:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2022-11-16 11:37:53,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8314176245210728 [2022-11-16 11:37:53,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2022-11-16 11:37:53,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2022-11-16 11:37:53,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:53,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2022-11-16 11:37:53,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,847 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 273 flow. Second operand 3 states and 434 transitions. [2022-11-16 11:37:53,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 131 transitions, 351 flow [2022-11-16 11:37:53,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:53,850 INFO L231 Difference]: Finished difference. Result has 133 places, 124 transitions, 269 flow [2022-11-16 11:37:53,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=133, PETRI_TRANSITIONS=124} [2022-11-16 11:37:53,851 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -27 predicate places. [2022-11-16 11:37:53,851 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 124 transitions, 269 flow [2022-11-16 11:37:53,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:53,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:53,852 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:53,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:37:53,853 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 11:37:53,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1250320640, now seen corresponding path program 1 times [2022-11-16 11:37:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:53,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738659861] [2022-11-16 11:37:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:53,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:54,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:54,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738659861] [2022-11-16 11:37:54,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738659861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:54,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:54,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:37:54,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789184004] [2022-11-16 11:37:54,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:54,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:37:54,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:54,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:37:54,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:37:54,343 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-11-16 11:37:54,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 124 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:54,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-11-16 11:37:54,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:54,442 INFO L130 PetriNetUnfolder]: 36/297 cut-off events. [2022-11-16 11:37:54,442 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-16 11:37:54,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 297 events. 36/297 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 897 event pairs, 28 based on Foata normal form. 1/294 useless extension candidates. Maximal degree in co-relation 420. Up to 87 conditions per place. [2022-11-16 11:37:54,443 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2022-11-16 11:37:54,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 123 transitions, 321 flow [2022-11-16 11:37:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:37:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:37:54,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 836 transitions. [2022-11-16 11:37:54,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8007662835249042 [2022-11-16 11:37:54,446 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 836 transitions. [2022-11-16 11:37:54,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 836 transitions. [2022-11-16 11:37:54,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:54,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 836 transitions. [2022-11-16 11:37:54,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,452 INFO L175 Difference]: Start difference. First operand has 133 places, 124 transitions, 269 flow. Second operand 6 states and 836 transitions. [2022-11-16 11:37:54,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 123 transitions, 321 flow [2022-11-16 11:37:54,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 123 transitions, 317 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:54,456 INFO L231 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2022-11-16 11:37:54,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2022-11-16 11:37:54,457 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, -26 predicate places. [2022-11-16 11:37:54,457 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2022-11-16 11:37:54,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2022-11-16 11:37:54,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-11-16 11:37:54,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-11-16 11:37:54,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-11-16 11:37:54,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-11-16 11:37:54,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-11-16 11:37:54,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-11-16 11:37:54,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-11-16 11:37:54,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-11-16 11:37:54,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-11-16 11:37:54,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-11-16 11:37:54,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-11-16 11:37:54,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-11-16 11:37:54,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-11-16 11:37:54,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-11-16 11:37:54,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-11-16 11:37:54,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 37 remaining) [2022-11-16 11:37:54,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 37 remaining) [2022-11-16 11:37:54,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 37 remaining) [2022-11-16 11:37:54,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-11-16 11:37:54,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-11-16 11:37:54,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-11-16 11:37:54,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-11-16 11:37:54,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-11-16 11:37:54,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-11-16 11:37:54,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:37:54,467 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:54,474 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:37:54,474 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:37:54,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:37:54 BasicIcfg [2022-11-16 11:37:54,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:37:54,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:37:54,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:37:54,482 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:37:54,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:37:49" (3/4) ... [2022-11-16 11:37:54,485 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:37:54,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 11:37:54,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 11:37:54,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 11:37:54,498 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-16 11:37:54,498 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:37:54,498 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:37:54,499 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:37:54,547 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:37:54,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:37:54,548 INFO L158 Benchmark]: Toolchain (without parser) took 5946.59ms. Allocated memory was 125.8MB in the beginning and 222.3MB in the end (delta: 96.5MB). Free memory was 89.9MB in the beginning and 140.4MB in the end (delta: -50.5MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2022-11-16 11:37:54,548 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:37:54,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.82ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 98.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:37:54,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.94ms. Allocated memory is still 125.8MB. Free memory was 98.9MB in the beginning and 96.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:37:54,549 INFO L158 Benchmark]: Boogie Preprocessor took 46.17ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:37:54,550 INFO L158 Benchmark]: RCFGBuilder took 726.05ms. Allocated memory is still 125.8MB. Free memory was 95.4MB in the beginning and 75.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 11:37:54,550 INFO L158 Benchmark]: TraceAbstraction took 4740.44ms. Allocated memory was 125.8MB in the beginning and 222.3MB in the end (delta: 96.5MB). Free memory was 74.4MB in the beginning and 143.6MB in the end (delta: -69.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-11-16 11:37:54,550 INFO L158 Benchmark]: Witness Printer took 65.47ms. Allocated memory is still 222.3MB. Free memory was 143.6MB in the beginning and 140.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:37:54,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.82ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 98.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.94ms. Allocated memory is still 125.8MB. Free memory was 98.9MB in the beginning and 96.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.17ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 726.05ms. Allocated memory is still 125.8MB. Free memory was 95.4MB in the beginning and 75.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4740.44ms. Allocated memory was 125.8MB in the beginning and 222.3MB in the end (delta: 96.5MB). Free memory was 74.4MB in the beginning and 143.6MB in the end (delta: -69.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 65.47ms. Allocated memory is still 222.3MB. Free memory was 143.6MB in the beginning and 140.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 227 locations, 37 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: 4.6s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 457 IncrementalHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 154 mSDtfsCounter, 457 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 790 NumberOfCodeBlocks, 790 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 1040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:37:54,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433d9102-2652-45ea-9154-80b6c149d1b7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE