./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc --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 c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 --- 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-5e519f3 [2022-11-02 20:54:20,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:54:20,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:54:20,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:54:20,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:54:20,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:54:20,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:54:20,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:54:20,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:54:20,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:54:20,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:54:20,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:54:20,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:54:20,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:54:20,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:54:20,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:54:20,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:54:20,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:54:20,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:54:20,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:54:20,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:54:20,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:54:20,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:54:20,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:54:20,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:54:20,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:54:20,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:54:20,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:54:20,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:54:20,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:54:20,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:54:20,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:54:20,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:54:20,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:54:20,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:54:20,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:54:20,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:54:20,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:54:20,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:54:20,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:54:20,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:54:20,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:54:20,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:54:20,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:54:20,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:54:20,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:54:20,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:54:20,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:54:20,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:54:20,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:54:20,394 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:54:20,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:54:20,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:54:20,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:54:20,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:54:20,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:54:20,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:54:20,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:54:20,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:54:20,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:54:20,398 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:54:20,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:54:20,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:54:20,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:54:20,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:54:20,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:54:20,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:54:20,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:54:20,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:54:20,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:54:20,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:54:20,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:54:20,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:54:20,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:54:20,403 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:54:20,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:54:20,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:54:20,404 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_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 [2022-11-02 20:54:20,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:54:20,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:54:20,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:54:20,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:54:20,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:54:20,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2022-11-02 20:54:20,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/data/e0e7f749b/c924b00927484ca7aad0cb88204349d6/FLAG0db98cdb5 [2022-11-02 20:54:21,392 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:54:21,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2022-11-02 20:54:21,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/data/e0e7f749b/c924b00927484ca7aad0cb88204349d6/FLAG0db98cdb5 [2022-11-02 20:54:21,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/data/e0e7f749b/c924b00927484ca7aad0cb88204349d6 [2022-11-02 20:54:21,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:54:21,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:54:21,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:54:21,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:54:21,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:54:21,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:21" (1/1) ... [2022-11-02 20:54:21,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b12238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:21, skipping insertion in model container [2022-11-02 20:54:21,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:21" (1/1) ... [2022-11-02 20:54:21,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:54:21,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:54:22,083 WARN L230 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_41011721-91c2-4a15-ba40-f4ca961280d4/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-11-02 20:54:22,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:54:22,099 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:54:22,138 WARN L230 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_41011721-91c2-4a15-ba40-f4ca961280d4/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-11-02 20:54:22,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:54:22,166 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:54:22,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22 WrapperNode [2022-11-02 20:54:22,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:54:22,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:54:22,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:54:22,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:54:22,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,255 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 516 [2022-11-02 20:54:22,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:54:22,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:54:22,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:54:22,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:54:22,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:54:22,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:54:22,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:54:22,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:54:22,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (1/1) ... [2022-11-02 20:54:22,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:54:22,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:22,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:54:22,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41011721-91c2-4a15-ba40-f4ca961280d4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:54:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:54:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:54:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:54:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:54:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:54:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:54:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:54:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:54:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:54:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:54:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:54:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:54:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:54:22,449 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:54:22,568 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:54:22,570 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:54:23,644 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:54:23,667 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:54:23,668 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:54:23,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:23 BoogieIcfgContainer [2022-11-02 20:54:23,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:54:23,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:54:23,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:54:23,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:54:23,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:54:21" (1/3) ... [2022-11-02 20:54:23,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f30506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:23, skipping insertion in model container [2022-11-02 20:54:23,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:22" (2/3) ... [2022-11-02 20:54:23,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f30506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:23, skipping insertion in model container [2022-11-02 20:54:23,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:23" (3/3) ... [2022-11-02 20:54:23,684 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2022-11-02 20:54:23,697 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:54:23,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:54:23,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-11-02 20:54:23,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:54:23,939 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:54:23,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 688 places, 714 transitions, 1444 flow [2022-11-02 20:54:24,336 INFO L130 PetriNetUnfolder]: 33/712 cut-off events. [2022-11-02 20:54:24,336 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:54:24,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 712 events. 33/712 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1882 event pairs, 0 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 461. Up to 2 conditions per place. [2022-11-02 20:54:24,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 688 places, 714 transitions, 1444 flow [2022-11-02 20:54:24,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 694 transitions, 1400 flow [2022-11-02 20:54:24,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:54:24,404 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;@74b0168f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:54:24,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2022-11-02 20:54:24,410 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-02 20:54:24,410 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:54:24,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:24,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:24,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash -837769145, now seen corresponding path program 1 times [2022-11-02 20:54:24,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:24,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232605884] [2022-11-02 20:54:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:24,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:24,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:24,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232605884] [2022-11-02 20:54:24,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232605884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:24,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:24,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:24,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403902557] [2022-11-02 20:54:24,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:24,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:24,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:24,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:24,782 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 714 [2022-11-02 20:54:24,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 694 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 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) [2022-11-02 20:54:24,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:24,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 714 [2022-11-02 20:54:24,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:25,329 INFO L130 PetriNetUnfolder]: 32/1111 cut-off events. [2022-11-02 20:54:25,330 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-02 20:54:25,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 1111 events. 32/1111 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5122 event pairs, 18 based on Foata normal form. 134/1077 useless extension candidates. Maximal degree in co-relation 972. Up to 80 conditions per place. [2022-11-02 20:54:25,358 INFO L137 encePairwiseOnDemand]: 689/714 looper letters, 43 selfloop transitions, 2 changer transitions 3/671 dead transitions. [2022-11-02 20:54:25,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 671 transitions, 1444 flow [2022-11-02 20:54:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2000 transitions. [2022-11-02 20:54:25,391 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9337068160597572 [2022-11-02 20:54:25,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2000 transitions. [2022-11-02 20:54:25,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2000 transitions. [2022-11-02 20:54:25,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:25,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2000 transitions. [2022-11-02 20:54:25,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 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) [2022-11-02 20:54:25,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:25,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:25,431 INFO L175 Difference]: Start difference. First operand has 669 places, 694 transitions, 1400 flow. Second operand 3 states and 2000 transitions. [2022-11-02 20:54:25,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 671 transitions, 1444 flow [2022-11-02 20:54:25,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 671 transitions, 1436 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:54:25,492 INFO L231 Difference]: Finished difference. Result has 666 places, 668 transitions, 1344 flow [2022-11-02 20:54:25,495 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1346, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1344, PETRI_PLACES=666, PETRI_TRANSITIONS=668} [2022-11-02 20:54:25,498 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2022-11-02 20:54:25,501 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 668 transitions, 1344 flow [2022-11-02 20:54:25,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 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) [2022-11-02 20:54:25,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:25,503 INFO L208 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] [2022-11-02 20:54:25,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:54:25,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:25,508 INFO L85 PathProgramCache]: Analyzing trace with hash 196513309, now seen corresponding path program 1 times [2022-11-02 20:54:25,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:25,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779790489] [2022-11-02 20:54:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:25,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:25,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:25,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779790489] [2022-11-02 20:54:25,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779790489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:25,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:25,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010549379] [2022-11-02 20:54:25,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:25,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:25,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:25,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:25,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:25,631 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-02 20:54:25,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 668 transitions, 1344 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 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) [2022-11-02 20:54:25,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:25,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-02 20:54:25,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:25,988 INFO L130 PetriNetUnfolder]: 30/886 cut-off events. [2022-11-02 20:54:25,989 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-02 20:54:25,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 886 events. 30/886 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3840 event pairs, 18 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 922. Up to 65 conditions per place. [2022-11-02 20:54:26,007 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/667 dead transitions. [2022-11-02 20:54:26,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 667 transitions, 1402 flow [2022-11-02 20:54:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:26,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-02 20:54:26,012 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-02 20:54:26,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-02 20:54:26,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-02 20:54:26,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:26,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-02 20:54:26,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 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) [2022-11-02 20:54:26,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:26,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:26,028 INFO L175 Difference]: Start difference. First operand has 666 places, 668 transitions, 1344 flow. Second operand 3 states and 2008 transitions. [2022-11-02 20:54:26,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 667 transitions, 1402 flow [2022-11-02 20:54:26,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 667 transitions, 1398 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:26,042 INFO L231 Difference]: Finished difference. Result has 662 places, 667 transitions, 1342 flow [2022-11-02 20:54:26,043 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=660, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1342, PETRI_PLACES=662, PETRI_TRANSITIONS=667} [2022-11-02 20:54:26,045 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -7 predicate places. [2022-11-02 20:54:26,045 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 667 transitions, 1342 flow [2022-11-02 20:54:26,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 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) [2022-11-02 20:54:26,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:26,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:26,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:54:26,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:26,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1254129102, now seen corresponding path program 1 times [2022-11-02 20:54:26,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:26,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431963412] [2022-11-02 20:54:26,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:26,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:26,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:26,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431963412] [2022-11-02 20:54:26,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431963412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:26,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:26,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974618811] [2022-11-02 20:54:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:26,154 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-11-02 20:54:26,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 667 transitions, 1342 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 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) [2022-11-02 20:54:26,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:26,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-11-02 20:54:26,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:26,433 INFO L130 PetriNetUnfolder]: 17/1015 cut-off events. [2022-11-02 20:54:26,434 INFO L131 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-11-02 20:54:26,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 1015 events. 17/1015 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4002 event pairs, 3 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 999. Up to 17 conditions per place. [2022-11-02 20:54:26,453 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/666 dead transitions. [2022-11-02 20:54:26,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 666 transitions, 1364 flow [2022-11-02 20:54:26,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:26,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-11-02 20:54:26,459 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-11-02 20:54:26,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-11-02 20:54:26,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-11-02 20:54:26,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:26,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-11-02 20:54:26,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 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) [2022-11-02 20:54:26,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:26,475 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:26,475 INFO L175 Difference]: Start difference. First operand has 662 places, 667 transitions, 1342 flow. Second operand 3 states and 2044 transitions. [2022-11-02 20:54:26,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 666 transitions, 1364 flow [2022-11-02 20:54:26,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 666 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:26,493 INFO L231 Difference]: Finished difference. Result has 661 places, 666 transitions, 1340 flow [2022-11-02 20:54:26,495 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1340, PETRI_PLACES=661, PETRI_TRANSITIONS=666} [2022-11-02 20:54:26,497 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -8 predicate places. [2022-11-02 20:54:26,498 INFO L495 AbstractCegarLoop]: Abstraction has has 661 places, 666 transitions, 1340 flow [2022-11-02 20:54:26,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 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) [2022-11-02 20:54:26,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:26,499 INFO L208 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] [2022-11-02 20:54:26,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:54:26,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:26,501 INFO L85 PathProgramCache]: Analyzing trace with hash 96560048, now seen corresponding path program 1 times [2022-11-02 20:54:26,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:26,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063960358] [2022-11-02 20:54:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:26,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:26,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:26,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063960358] [2022-11-02 20:54:26,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063960358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:26,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:26,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:26,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289857937] [2022-11-02 20:54:26,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:26,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:26,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:26,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:26,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:26,602 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-11-02 20:54:26,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 666 transitions, 1340 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 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) [2022-11-02 20:54:26,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:26,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-11-02 20:54:26,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:26,879 INFO L130 PetriNetUnfolder]: 15/801 cut-off events. [2022-11-02 20:54:26,880 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-02 20:54:26,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 801 events. 15/801 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2517 event pairs, 3 based on Foata normal form. 0/684 useless extension candidates. Maximal degree in co-relation 775. Up to 17 conditions per place. [2022-11-02 20:54:26,906 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/665 dead transitions. [2022-11-02 20:54:26,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 665 transitions, 1362 flow [2022-11-02 20:54:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-11-02 20:54:26,912 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-11-02 20:54:26,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-11-02 20:54:26,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-11-02 20:54:26,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:26,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-11-02 20:54:26,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 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) [2022-11-02 20:54:26,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:26,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:26,933 INFO L175 Difference]: Start difference. First operand has 661 places, 666 transitions, 1340 flow. Second operand 3 states and 2044 transitions. [2022-11-02 20:54:26,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 665 transitions, 1362 flow [2022-11-02 20:54:26,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 665 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:26,950 INFO L231 Difference]: Finished difference. Result has 660 places, 665 transitions, 1338 flow [2022-11-02 20:54:26,951 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=660, PETRI_TRANSITIONS=665} [2022-11-02 20:54:26,954 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -9 predicate places. [2022-11-02 20:54:26,960 INFO L495 AbstractCegarLoop]: Abstraction has has 660 places, 665 transitions, 1338 flow [2022-11-02 20:54:26,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 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) [2022-11-02 20:54:26,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:26,962 INFO L208 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] [2022-11-02 20:54:26,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:54:26,963 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 221972091, now seen corresponding path program 1 times [2022-11-02 20:54:26,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:26,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162038967] [2022-11-02 20:54:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:26,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:27,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:27,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:27,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162038967] [2022-11-02 20:54:27,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162038967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:27,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:27,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642469668] [2022-11-02 20:54:27,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:27,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:27,080 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-02 20:54:27,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 665 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:27,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:27,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-02 20:54:27,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:27,442 INFO L130 PetriNetUnfolder]: 25/1004 cut-off events. [2022-11-02 20:54:27,442 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:54:27,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1004 events. 25/1004 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3807 event pairs, 12 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 1016. Up to 50 conditions per place. [2022-11-02 20:54:27,461 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/664 dead transitions. [2022-11-02 20:54:27,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 664 transitions, 1390 flow [2022-11-02 20:54:27,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-02 20:54:27,467 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-11-02 20:54:27,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-02 20:54:27,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-02 20:54:27,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:27,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-02 20:54:27,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 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) [2022-11-02 20:54:27,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:27,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:27,481 INFO L175 Difference]: Start difference. First operand has 660 places, 665 transitions, 1338 flow. Second operand 3 states and 2014 transitions. [2022-11-02 20:54:27,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 664 transitions, 1390 flow [2022-11-02 20:54:27,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 664 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:27,494 INFO L231 Difference]: Finished difference. Result has 659 places, 664 transitions, 1336 flow [2022-11-02 20:54:27,495 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1336, PETRI_PLACES=659, PETRI_TRANSITIONS=664} [2022-11-02 20:54:27,496 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -10 predicate places. [2022-11-02 20:54:27,496 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 664 transitions, 1336 flow [2022-11-02 20:54:27,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:27,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:27,498 INFO L208 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] [2022-11-02 20:54:27,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:54:27,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1810124123, now seen corresponding path program 1 times [2022-11-02 20:54:27,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:27,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143858509] [2022-11-02 20:54:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:27,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:27,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:27,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143858509] [2022-11-02 20:54:27,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143858509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:27,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:27,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:27,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105532105] [2022-11-02 20:54:27,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:27,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:27,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:27,553 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-02 20:54:27,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 664 transitions, 1336 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:27,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:27,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-02 20:54:27,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:27,811 INFO L130 PetriNetUnfolder]: 23/790 cut-off events. [2022-11-02 20:54:27,811 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-02 20:54:27,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 790 events. 23/790 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2956 event pairs, 12 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 782. Up to 49 conditions per place. [2022-11-02 20:54:27,829 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 24 selfloop transitions, 2 changer transitions 0/663 dead transitions. [2022-11-02 20:54:27,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 663 transitions, 1386 flow [2022-11-02 20:54:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2022-11-02 20:54:27,835 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9397759103641457 [2022-11-02 20:54:27,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2013 transitions. [2022-11-02 20:54:27,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2013 transitions. [2022-11-02 20:54:27,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:27,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2013 transitions. [2022-11-02 20:54:27,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 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) [2022-11-02 20:54:27,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:27,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:27,849 INFO L175 Difference]: Start difference. First operand has 659 places, 664 transitions, 1336 flow. Second operand 3 states and 2013 transitions. [2022-11-02 20:54:27,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 663 transitions, 1386 flow [2022-11-02 20:54:27,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 658 places, 663 transitions, 1382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:27,863 INFO L231 Difference]: Finished difference. Result has 658 places, 663 transitions, 1334 flow [2022-11-02 20:54:27,865 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=658, PETRI_TRANSITIONS=663} [2022-11-02 20:54:27,867 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -11 predicate places. [2022-11-02 20:54:27,867 INFO L495 AbstractCegarLoop]: Abstraction has has 658 places, 663 transitions, 1334 flow [2022-11-02 20:54:27,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:27,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:27,877 INFO L208 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] [2022-11-02 20:54:27,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:54:27,878 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:27,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:27,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2014656373, now seen corresponding path program 1 times [2022-11-02 20:54:27,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:27,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52698576] [2022-11-02 20:54:27,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:27,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:27,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:27,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52698576] [2022-11-02 20:54:27,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52698576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:27,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:27,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:27,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447659510] [2022-11-02 20:54:27,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:27,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:27,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:27,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:27,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:27,960 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-02 20:54:27,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 658 places, 663 transitions, 1334 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 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) [2022-11-02 20:54:27,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:27,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-02 20:54:27,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:28,219 INFO L130 PetriNetUnfolder]: 30/892 cut-off events. [2022-11-02 20:54:28,220 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:54:28,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 892 events. 30/892 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3552 event pairs, 18 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 911. Up to 65 conditions per place. [2022-11-02 20:54:28,238 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/662 dead transitions. [2022-11-02 20:54:28,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 662 transitions, 1392 flow [2022-11-02 20:54:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-02 20:54:28,243 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-02 20:54:28,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-02 20:54:28,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-02 20:54:28,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:28,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-02 20:54:28,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 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) [2022-11-02 20:54:28,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:28,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:28,256 INFO L175 Difference]: Start difference. First operand has 658 places, 663 transitions, 1334 flow. Second operand 3 states and 2008 transitions. [2022-11-02 20:54:28,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 662 transitions, 1392 flow [2022-11-02 20:54:28,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 662 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:28,270 INFO L231 Difference]: Finished difference. Result has 657 places, 662 transitions, 1332 flow [2022-11-02 20:54:28,271 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=660, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1332, PETRI_PLACES=657, PETRI_TRANSITIONS=662} [2022-11-02 20:54:28,272 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -12 predicate places. [2022-11-02 20:54:28,272 INFO L495 AbstractCegarLoop]: Abstraction has has 657 places, 662 transitions, 1332 flow [2022-11-02 20:54:28,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 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) [2022-11-02 20:54:28,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:28,273 INFO L208 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] [2022-11-02 20:54:28,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:54:28,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1986039817, now seen corresponding path program 1 times [2022-11-02 20:54:28,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:28,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439699267] [2022-11-02 20:54:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:28,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:28,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:28,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439699267] [2022-11-02 20:54:28,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439699267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:28,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:28,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:28,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574947384] [2022-11-02 20:54:28,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:28,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:28,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:28,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:28,326 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-02 20:54:28,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 662 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 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) [2022-11-02 20:54:28,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:28,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-02 20:54:28,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:28,602 INFO L130 PetriNetUnfolder]: 30/891 cut-off events. [2022-11-02 20:54:28,603 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-02 20:54:28,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 891 events. 30/891 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3883 event pairs, 18 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 885. Up to 65 conditions per place. [2022-11-02 20:54:28,621 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/661 dead transitions. [2022-11-02 20:54:28,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 661 transitions, 1390 flow [2022-11-02 20:54:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:28,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-02 20:54:28,627 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-02 20:54:28,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-02 20:54:28,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-02 20:54:28,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:28,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-02 20:54:28,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 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) [2022-11-02 20:54:28,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:28,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:28,638 INFO L175 Difference]: Start difference. First operand has 657 places, 662 transitions, 1332 flow. Second operand 3 states and 2008 transitions. [2022-11-02 20:54:28,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 661 transitions, 1390 flow [2022-11-02 20:54:28,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 661 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:28,652 INFO L231 Difference]: Finished difference. Result has 656 places, 661 transitions, 1330 flow [2022-11-02 20:54:28,653 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1330, PETRI_PLACES=656, PETRI_TRANSITIONS=661} [2022-11-02 20:54:28,654 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -13 predicate places. [2022-11-02 20:54:28,654 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 661 transitions, 1330 flow [2022-11-02 20:54:28,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 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) [2022-11-02 20:54:28,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:28,655 INFO L208 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] [2022-11-02 20:54:28,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:54:28,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:28,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1467574070, now seen corresponding path program 1 times [2022-11-02 20:54:28,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:28,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029099267] [2022-11-02 20:54:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:28,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:28,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029099267] [2022-11-02 20:54:28,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029099267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:28,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:28,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:28,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375677296] [2022-11-02 20:54:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:28,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:28,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:28,707 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 671 out of 714 [2022-11-02 20:54:28,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 661 transitions, 1330 flow. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 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) [2022-11-02 20:54:28,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:28,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 671 of 714 [2022-11-02 20:54:28,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:29,164 INFO L130 PetriNetUnfolder]: 37/1934 cut-off events. [2022-11-02 20:54:29,164 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:54:29,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1934 events. 37/1934 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11956 event pairs, 15 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1906. Up to 47 conditions per place. [2022-11-02 20:54:29,192 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 16 selfloop transitions, 2 changer transitions 0/660 dead transitions. [2022-11-02 20:54:29,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 660 transitions, 1364 flow [2022-11-02 20:54:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2032 transitions. [2022-11-02 20:54:29,198 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9486461251167133 [2022-11-02 20:54:29,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2032 transitions. [2022-11-02 20:54:29,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2032 transitions. [2022-11-02 20:54:29,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:29,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2032 transitions. [2022-11-02 20:54:29,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 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) [2022-11-02 20:54:29,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:29,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:29,211 INFO L175 Difference]: Start difference. First operand has 656 places, 661 transitions, 1330 flow. Second operand 3 states and 2032 transitions. [2022-11-02 20:54:29,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 660 transitions, 1364 flow [2022-11-02 20:54:29,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 660 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:29,224 INFO L231 Difference]: Finished difference. Result has 655 places, 660 transitions, 1328 flow [2022-11-02 20:54:29,225 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1324, PETRI_DIFFERENCE_MINUEND_PLACES=653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=655, PETRI_TRANSITIONS=660} [2022-11-02 20:54:29,226 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -14 predicate places. [2022-11-02 20:54:29,226 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 660 transitions, 1328 flow [2022-11-02 20:54:29,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 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) [2022-11-02 20:54:29,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:29,228 INFO L208 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] [2022-11-02 20:54:29,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:54:29,228 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:29,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:29,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1624605024, now seen corresponding path program 1 times [2022-11-02 20:54:29,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:29,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904528328] [2022-11-02 20:54:29,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:29,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:29,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:29,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904528328] [2022-11-02 20:54:29,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904528328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:29,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:29,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972955539] [2022-11-02 20:54:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:29,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:29,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:29,274 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 674 out of 714 [2022-11-02 20:54:29,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 660 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 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) [2022-11-02 20:54:29,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:29,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 674 of 714 [2022-11-02 20:54:29,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:29,696 INFO L130 PetriNetUnfolder]: 28/1711 cut-off events. [2022-11-02 20:54:29,697 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:54:29,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1711 events. 28/1711 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 9773 event pairs, 8 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 1654. Up to 26 conditions per place. [2022-11-02 20:54:29,721 INFO L137 encePairwiseOnDemand]: 710/714 looper letters, 11 selfloop transitions, 1 changer transitions 0/657 dead transitions. [2022-11-02 20:54:29,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 657 transitions, 1346 flow [2022-11-02 20:54:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2037 transitions. [2022-11-02 20:54:29,726 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9509803921568627 [2022-11-02 20:54:29,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2037 transitions. [2022-11-02 20:54:29,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2037 transitions. [2022-11-02 20:54:29,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:29,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2037 transitions. [2022-11-02 20:54:29,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 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) [2022-11-02 20:54:29,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:29,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:29,738 INFO L175 Difference]: Start difference. First operand has 655 places, 660 transitions, 1328 flow. Second operand 3 states and 2037 transitions. [2022-11-02 20:54:29,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 657 transitions, 1346 flow [2022-11-02 20:54:29,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 657 transitions, 1342 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:29,750 INFO L231 Difference]: Finished difference. Result has 652 places, 657 transitions, 1320 flow [2022-11-02 20:54:29,752 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=656, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1320, PETRI_PLACES=652, PETRI_TRANSITIONS=657} [2022-11-02 20:54:29,752 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-11-02 20:54:29,753 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 657 transitions, 1320 flow [2022-11-02 20:54:29,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 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) [2022-11-02 20:54:29,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:29,754 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:29,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:54:29,754 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -644716200, now seen corresponding path program 1 times [2022-11-02 20:54:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:29,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316121607] [2022-11-02 20:54:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:29,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:29,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316121607] [2022-11-02 20:54:29,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316121607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:29,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:29,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:29,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144495639] [2022-11-02 20:54:29,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:29,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:29,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:29,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:29,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:29,824 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-02 20:54:29,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 657 transitions, 1320 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:29,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:29,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-02 20:54:29,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:30,454 INFO L130 PetriNetUnfolder]: 141/2668 cut-off events. [2022-11-02 20:54:30,454 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-02 20:54:30,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2668 events. 141/2668 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18807 event pairs, 99 based on Foata normal form. 0/2235 useless extension candidates. Maximal degree in co-relation 2815. Up to 224 conditions per place. [2022-11-02 20:54:30,485 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/656 dead transitions. [2022-11-02 20:54:30,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 656 transitions, 1372 flow [2022-11-02 20:54:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-02 20:54:30,490 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-11-02 20:54:30,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-02 20:54:30,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-02 20:54:30,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:30,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-02 20:54:30,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 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) [2022-11-02 20:54:30,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:30,502 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:30,502 INFO L175 Difference]: Start difference. First operand has 652 places, 657 transitions, 1320 flow. Second operand 3 states and 2014 transitions. [2022-11-02 20:54:30,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 656 transitions, 1372 flow [2022-11-02 20:54:30,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 656 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:30,514 INFO L231 Difference]: Finished difference. Result has 652 places, 656 transitions, 1321 flow [2022-11-02 20:54:30,515 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1321, PETRI_PLACES=652, PETRI_TRANSITIONS=656} [2022-11-02 20:54:30,516 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-11-02 20:54:30,516 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 656 transitions, 1321 flow [2022-11-02 20:54:30,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:30,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:30,517 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:30,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:54:30,518 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:30,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:30,518 INFO L85 PathProgramCache]: Analyzing trace with hash 139646347, now seen corresponding path program 1 times [2022-11-02 20:54:30,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:30,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789593065] [2022-11-02 20:54:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:30,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:31,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:31,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789593065] [2022-11-02 20:54:31,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789593065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:31,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:31,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:54:31,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240046558] [2022-11-02 20:54:31,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:31,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:31,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:31,093 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 714 [2022-11-02 20:54:31,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 656 transitions, 1321 flow. Second operand has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 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) [2022-11-02 20:54:31,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:31,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 714 [2022-11-02 20:54:31,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:36,924 INFO L130 PetriNetUnfolder]: 4986/24312 cut-off events. [2022-11-02 20:54:36,924 INFO L131 PetriNetUnfolder]: For 19/112 co-relation queries the response was YES. [2022-11-02 20:54:37,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31606 conditions, 24312 events. 4986/24312 cut-off events. For 19/112 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 282705 event pairs, 4572 based on Foata normal form. 0/20399 useless extension candidates. Maximal degree in co-relation 31514. Up to 7264 conditions per place. [2022-11-02 20:54:37,123 INFO L137 encePairwiseOnDemand]: 708/714 looper letters, 63 selfloop transitions, 5 changer transitions 0/655 dead transitions. [2022-11-02 20:54:37,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 655 transitions, 1455 flow [2022-11-02 20:54:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:54:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:54:37,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3795 transitions. [2022-11-02 20:54:37,132 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8858543417366946 [2022-11-02 20:54:37,132 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3795 transitions. [2022-11-02 20:54:37,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3795 transitions. [2022-11-02 20:54:37,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:37,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3795 transitions. [2022-11-02 20:54:37,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 632.5) internal successors, (3795), 6 states have internal predecessors, (3795), 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) [2022-11-02 20:54:37,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 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) [2022-11-02 20:54:37,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 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) [2022-11-02 20:54:37,153 INFO L175 Difference]: Start difference. First operand has 652 places, 656 transitions, 1321 flow. Second operand 6 states and 3795 transitions. [2022-11-02 20:54:37,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 655 transitions, 1455 flow [2022-11-02 20:54:37,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 655 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:37,165 INFO L231 Difference]: Finished difference. Result has 654 places, 655 transitions, 1325 flow [2022-11-02 20:54:37,166 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1325, PETRI_PLACES=654, PETRI_TRANSITIONS=655} [2022-11-02 20:54:37,169 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -15 predicate places. [2022-11-02 20:54:37,169 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 655 transitions, 1325 flow [2022-11-02 20:54:37,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 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) [2022-11-02 20:54:37,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:37,173 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:54:37,173 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:37,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1881242709, now seen corresponding path program 1 times [2022-11-02 20:54:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:37,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055397975] [2022-11-02 20:54:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:37,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:37,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:37,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055397975] [2022-11-02 20:54:37,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055397975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:37,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:37,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:37,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356439864] [2022-11-02 20:54:37,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:37,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:37,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:37,229 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 714 [2022-11-02 20:54:37,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 655 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 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) [2022-11-02 20:54:37,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:37,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 714 [2022-11-02 20:54:37,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:37,658 INFO L130 PetriNetUnfolder]: 30/1100 cut-off events. [2022-11-02 20:54:37,658 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:54:37,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 1100 events. 30/1100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5091 event pairs, 8 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 1171. Up to 44 conditions per place. [2022-11-02 20:54:37,678 INFO L137 encePairwiseOnDemand]: 699/714 looper letters, 30 selfloop transitions, 5 changer transitions 0/648 dead transitions. [2022-11-02 20:54:37,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 648 transitions, 1382 flow [2022-11-02 20:54:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1986 transitions. [2022-11-02 20:54:37,683 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.927170868347339 [2022-11-02 20:54:37,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1986 transitions. [2022-11-02 20:54:37,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1986 transitions. [2022-11-02 20:54:37,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:37,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1986 transitions. [2022-11-02 20:54:37,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.0) internal successors, (1986), 3 states have internal predecessors, (1986), 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) [2022-11-02 20:54:37,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:37,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:37,694 INFO L175 Difference]: Start difference. First operand has 654 places, 655 transitions, 1325 flow. Second operand 3 states and 1986 transitions. [2022-11-02 20:54:37,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 648 transitions, 1382 flow [2022-11-02 20:54:37,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 648 transitions, 1372 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:54:37,711 INFO L231 Difference]: Finished difference. Result has 642 places, 647 transitions, 1318 flow [2022-11-02 20:54:37,713 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=642, PETRI_TRANSITIONS=647} [2022-11-02 20:54:37,714 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -27 predicate places. [2022-11-02 20:54:37,714 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 647 transitions, 1318 flow [2022-11-02 20:54:37,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 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) [2022-11-02 20:54:37,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:37,715 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:37,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:54:37,716 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:37,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash 307031320, now seen corresponding path program 1 times [2022-11-02 20:54:37,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:37,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982099353] [2022-11-02 20:54:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:37,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982099353] [2022-11-02 20:54:37,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982099353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:37,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:37,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:37,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355718880] [2022-11-02 20:54:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:37,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:37,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:37,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:37,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:37,770 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-02 20:54:37,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 647 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:37,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:37,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-02 20:54:37,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:38,004 INFO L130 PetriNetUnfolder]: 29/887 cut-off events. [2022-11-02 20:54:38,004 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-02 20:54:38,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 887 events. 29/887 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3683 event pairs, 8 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 863. Up to 34 conditions per place. [2022-11-02 20:54:38,021 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 20 selfloop transitions, 5 changer transitions 0/645 dead transitions. [2022-11-02 20:54:38,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 645 transitions, 1365 flow [2022-11-02 20:54:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:38,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-02 20:54:38,027 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-02 20:54:38,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-02 20:54:38,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-02 20:54:38,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:38,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-02 20:54:38,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 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) [2022-11-02 20:54:38,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:38,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:38,039 INFO L175 Difference]: Start difference. First operand has 642 places, 647 transitions, 1318 flow. Second operand 3 states and 2016 transitions. [2022-11-02 20:54:38,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 645 transitions, 1365 flow [2022-11-02 20:54:38,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 645 transitions, 1360 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:38,053 INFO L231 Difference]: Finished difference. Result has 639 places, 644 transitions, 1326 flow [2022-11-02 20:54:38,054 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1326, PETRI_PLACES=639, PETRI_TRANSITIONS=644} [2022-11-02 20:54:38,055 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -30 predicate places. [2022-11-02 20:54:38,056 INFO L495 AbstractCegarLoop]: Abstraction has has 639 places, 644 transitions, 1326 flow [2022-11-02 20:54:38,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:38,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:38,057 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:38,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:54:38,058 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:38,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:38,059 INFO L85 PathProgramCache]: Analyzing trace with hash 953366865, now seen corresponding path program 1 times [2022-11-02 20:54:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:38,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729757808] [2022-11-02 20:54:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:38,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:38,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729757808] [2022-11-02 20:54:38,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729757808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:38,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:38,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:38,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793046015] [2022-11-02 20:54:38,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:38,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:38,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:38,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:38,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:38,119 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-02 20:54:38,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 644 transitions, 1326 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 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) [2022-11-02 20:54:38,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:38,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-02 20:54:38,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:38,679 INFO L130 PetriNetUnfolder]: 44/1518 cut-off events. [2022-11-02 20:54:38,680 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 20:54:38,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1518 events. 44/1518 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 6730 event pairs, 6 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1541. Up to 32 conditions per place. [2022-11-02 20:54:38,716 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 18 selfloop transitions, 6 changer transitions 0/644 dead transitions. [2022-11-02 20:54:38,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 644 transitions, 1376 flow [2022-11-02 20:54:38,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:38,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-11-02 20:54:38,722 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-02 20:54:38,722 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-11-02 20:54:38,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-11-02 20:54:38,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:38,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-11-02 20:54:38,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 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) [2022-11-02 20:54:38,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:38,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:38,739 INFO L175 Difference]: Start difference. First operand has 639 places, 644 transitions, 1326 flow. Second operand 3 states and 2023 transitions. [2022-11-02 20:54:38,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 644 transitions, 1376 flow [2022-11-02 20:54:38,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 644 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:38,757 INFO L231 Difference]: Finished difference. Result has 637 places, 642 transitions, 1339 flow [2022-11-02 20:54:38,758 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=637, PETRI_TRANSITIONS=642} [2022-11-02 20:54:38,759 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -32 predicate places. [2022-11-02 20:54:38,759 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 642 transitions, 1339 flow [2022-11-02 20:54:38,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 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) [2022-11-02 20:54:38,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:38,760 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:38,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:54:38,761 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:38,762 INFO L85 PathProgramCache]: Analyzing trace with hash 221688834, now seen corresponding path program 1 times [2022-11-02 20:54:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:38,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482233286] [2022-11-02 20:54:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:38,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:38,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482233286] [2022-11-02 20:54:38,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482233286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:38,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:38,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222273269] [2022-11-02 20:54:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:38,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:38,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:38,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:38,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:38,846 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-02 20:54:38,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 642 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 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) [2022-11-02 20:54:38,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:38,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-02 20:54:38,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:39,477 INFO L130 PetriNetUnfolder]: 60/1994 cut-off events. [2022-11-02 20:54:39,477 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-02 20:54:39,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 1994 events. 60/1994 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 12033 event pairs, 6 based on Foata normal form. 1/1742 useless extension candidates. Maximal degree in co-relation 2058. Up to 45 conditions per place. [2022-11-02 20:54:39,539 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 17 selfloop transitions, 5 changer transitions 5/643 dead transitions. [2022-11-02 20:54:39,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 643 transitions, 1392 flow [2022-11-02 20:54:39,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-11-02 20:54:39,546 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-02 20:54:39,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-11-02 20:54:39,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-11-02 20:54:39,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:39,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-11-02 20:54:39,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 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) [2022-11-02 20:54:39,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:39,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:39,562 INFO L175 Difference]: Start difference. First operand has 637 places, 642 transitions, 1339 flow. Second operand 3 states and 2023 transitions. [2022-11-02 20:54:39,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 643 transitions, 1392 flow [2022-11-02 20:54:39,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 643 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:39,582 INFO L231 Difference]: Finished difference. Result has 635 places, 635 transitions, 1335 flow [2022-11-02 20:54:39,583 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1335, PETRI_PLACES=635, PETRI_TRANSITIONS=635} [2022-11-02 20:54:39,583 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-02 20:54:39,584 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 635 transitions, 1335 flow [2022-11-02 20:54:39,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 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) [2022-11-02 20:54:39,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:39,586 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:39,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:54:39,586 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:39,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:39,587 INFO L85 PathProgramCache]: Analyzing trace with hash 339785333, now seen corresponding path program 1 times [2022-11-02 20:54:39,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073359706] [2022-11-02 20:54:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:39,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:39,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:39,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073359706] [2022-11-02 20:54:39,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073359706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:39,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:39,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493714111] [2022-11-02 20:54:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:39,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:39,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:39,665 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-02 20:54:39,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 635 transitions, 1335 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:39,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:39,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-02 20:54:39,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:40,765 INFO L130 PetriNetUnfolder]: 151/4028 cut-off events. [2022-11-02 20:54:40,765 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-02 20:54:40,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 4028 events. 151/4028 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 34174 event pairs, 40 based on Foata normal form. 0/3542 useless extension candidates. Maximal degree in co-relation 4409. Up to 158 conditions per place. [2022-11-02 20:54:40,819 INFO L137 encePairwiseOnDemand]: 705/714 looper letters, 20 selfloop transitions, 3 changer transitions 0/632 dead transitions. [2022-11-02 20:54:40,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 632 transitions, 1377 flow [2022-11-02 20:54:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2015 transitions. [2022-11-02 20:54:40,826 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9407096171802054 [2022-11-02 20:54:40,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2015 transitions. [2022-11-02 20:54:40,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2015 transitions. [2022-11-02 20:54:40,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:40,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2015 transitions. [2022-11-02 20:54:40,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.6666666666666) internal successors, (2015), 3 states have internal predecessors, (2015), 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) [2022-11-02 20:54:40,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:40,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:40,840 INFO L175 Difference]: Start difference. First operand has 635 places, 635 transitions, 1335 flow. Second operand 3 states and 2015 transitions. [2022-11-02 20:54:40,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 632 transitions, 1377 flow [2022-11-02 20:54:40,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 632 transitions, 1372 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:40,858 INFO L231 Difference]: Finished difference. Result has 626 places, 630 transitions, 1331 flow [2022-11-02 20:54:40,859 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1331, PETRI_PLACES=626, PETRI_TRANSITIONS=630} [2022-11-02 20:54:40,859 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -43 predicate places. [2022-11-02 20:54:40,860 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 630 transitions, 1331 flow [2022-11-02 20:54:40,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:40,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:40,861 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:40,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:54:40,862 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:40,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash 811159128, now seen corresponding path program 1 times [2022-11-02 20:54:40,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:40,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259772268] [2022-11-02 20:54:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:40,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:40,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259772268] [2022-11-02 20:54:40,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259772268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:40,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:40,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456437202] [2022-11-02 20:54:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:40,928 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-02 20:54:40,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 630 transitions, 1331 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:40,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:40,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-02 20:54:40,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:42,109 INFO L130 PetriNetUnfolder]: 126/3877 cut-off events. [2022-11-02 20:54:42,109 INFO L131 PetriNetUnfolder]: For 40/44 co-relation queries the response was YES. [2022-11-02 20:54:42,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4363 conditions, 3877 events. 126/3877 cut-off events. For 40/44 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 32990 event pairs, 6 based on Foata normal form. 0/3486 useless extension candidates. Maximal degree in co-relation 4265. Up to 176 conditions per place. [2022-11-02 20:54:42,176 INFO L137 encePairwiseOnDemand]: 705/714 looper letters, 21 selfloop transitions, 3 changer transitions 0/628 dead transitions. [2022-11-02 20:54:42,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 628 transitions, 1378 flow [2022-11-02 20:54:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-02 20:54:42,183 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-02 20:54:42,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-02 20:54:42,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-02 20:54:42,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:42,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-02 20:54:42,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 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) [2022-11-02 20:54:42,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:42,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:42,196 INFO L175 Difference]: Start difference. First operand has 626 places, 630 transitions, 1331 flow. Second operand 3 states and 2016 transitions. [2022-11-02 20:54:42,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 628 transitions, 1378 flow [2022-11-02 20:54:42,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 628 transitions, 1375 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:42,214 INFO L231 Difference]: Finished difference. Result has 622 places, 625 transitions, 1329 flow [2022-11-02 20:54:42,215 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1329, PETRI_PLACES=622, PETRI_TRANSITIONS=625} [2022-11-02 20:54:42,216 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-02 20:54:42,216 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 625 transitions, 1329 flow [2022-11-02 20:54:42,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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) [2022-11-02 20:54:42,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:42,217 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:42,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:54:42,218 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -182893953, now seen corresponding path program 1 times [2022-11-02 20:54:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:42,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221783681] [2022-11-02 20:54:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:42,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:42,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221783681] [2022-11-02 20:54:42,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221783681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:42,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:42,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270854963] [2022-11-02 20:54:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:42,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:42,302 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-02 20:54:42,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 625 transitions, 1329 flow. Second operand has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 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) [2022-11-02 20:54:42,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:42,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-02 20:54:42,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:44,831 INFO L130 PetriNetUnfolder]: 354/9746 cut-off events. [2022-11-02 20:54:44,831 INFO L131 PetriNetUnfolder]: For 59/63 co-relation queries the response was YES. [2022-11-02 20:54:44,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10938 conditions, 9746 events. 354/9746 cut-off events. For 59/63 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 100034 event pairs, 80 based on Foata normal form. 0/8810 useless extension candidates. Maximal degree in co-relation 10841. Up to 467 conditions per place. [2022-11-02 20:54:44,904 INFO L137 encePairwiseOnDemand]: 706/714 looper letters, 19 selfloop transitions, 2 changer transitions 0/623 dead transitions. [2022-11-02 20:54:44,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 623 transitions, 1369 flow [2022-11-02 20:54:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2022 transitions. [2022-11-02 20:54:44,909 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9439775910364145 [2022-11-02 20:54:44,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2022 transitions. [2022-11-02 20:54:44,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2022 transitions. [2022-11-02 20:54:44,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:44,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2022 transitions. [2022-11-02 20:54:44,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 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) [2022-11-02 20:54:44,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:44,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 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) [2022-11-02 20:54:44,925 INFO L175 Difference]: Start difference. First operand has 622 places, 625 transitions, 1329 flow. Second operand 3 states and 2022 transitions. [2022-11-02 20:54:44,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 623 transitions, 1369 flow [2022-11-02 20:54:44,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 623 transitions, 1366 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:44,938 INFO L231 Difference]: Finished difference. Result has 618 places, 621 transitions, 1328 flow [2022-11-02 20:54:44,939 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=618, PETRI_TRANSITIONS=621} [2022-11-02 20:54:44,939 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -51 predicate places. [2022-11-02 20:54:44,939 INFO L495 AbstractCegarLoop]: Abstraction has has 618 places, 621 transitions, 1328 flow [2022-11-02 20:54:44,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 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) [2022-11-02 20:54:44,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:44,941 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:44,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:54:44,941 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:54:44,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:44,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1977079987, now seen corresponding path program 1 times [2022-11-02 20:54:44,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:44,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232946767] [2022-11-02 20:54:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:44,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:45,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:45,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232946767] [2022-11-02 20:54:45,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232946767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:45,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:45,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:54:45,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052174938] [2022-11-02 20:54:45,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:45,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:45,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:45,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:45,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:45,497 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 714 [2022-11-02 20:54:45,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 621 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 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) [2022-11-02 20:54:45,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:45,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 714 [2022-11-02 20:54:45,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:59,793 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, 622#L98-4true, Black: 747#true, 757#true, 629#L47-3true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:54:59,794 INFO L383 tUnfolder$Statistics]: this new event has 366 ancestors and is cut-off event [2022-11-02 20:54:59,794 INFO L386 tUnfolder$Statistics]: existing Event has 265 ancestors and is cut-off event [2022-11-02 20:54:59,794 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-02 20:54:59,794 INFO L386 tUnfolder$Statistics]: existing Event has 359 ancestors and is cut-off event [2022-11-02 20:54:59,877 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, Black: 747#true, 757#true, 74#L99-1true, 629#L47-3true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:54:59,877 INFO L383 tUnfolder$Statistics]: this new event has 369 ancestors and is cut-off event [2022-11-02 20:54:59,877 INFO L386 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-11-02 20:54:59,878 INFO L386 tUnfolder$Statistics]: existing Event has 362 ancestors and is cut-off event [2022-11-02 20:54:59,878 INFO L386 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-11-02 20:54:59,927 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, 622#L98-4true, Black: 742#true, Black: 747#true, 629#L47-3true, Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:54:59,927 INFO L383 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-11-02 20:54:59,927 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-02 20:54:59,928 INFO L386 tUnfolder$Statistics]: existing Event has 176 ancestors and is cut-off event [2022-11-02 20:54:59,928 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-02 20:54:59,938 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, Black: 747#true, 757#true, 634#L99-3true, 629#L47-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:54:59,938 INFO L383 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-11-02 20:54:59,938 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-02 20:54:59,938 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-02 20:54:59,938 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-02 20:54:59,965 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 137#L99-4true, Black: 742#true, Black: 747#true, 757#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 629#L47-3true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:54:59,965 INFO L383 tUnfolder$Statistics]: this new event has 372 ancestors and is cut-off event [2022-11-02 20:54:59,966 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-02 20:54:59,966 INFO L386 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-11-02 20:54:59,966 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-02 20:55:00,016 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, Black: 747#true, 74#L99-1true, 629#L47-3true, Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:55:00,016 INFO L383 tUnfolder$Statistics]: this new event has 374 ancestors and is cut-off event [2022-11-02 20:55:00,016 INFO L386 tUnfolder$Statistics]: existing Event has 367 ancestors and is cut-off event [2022-11-02 20:55:00,016 INFO L386 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-11-02 20:55:00,016 INFO L386 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-11-02 20:55:00,065 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, Black: 747#true, 634#L99-3true, 629#L47-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:55:00,065 INFO L383 tUnfolder$Statistics]: this new event has 376 ancestors and is cut-off event [2022-11-02 20:55:00,065 INFO L386 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-11-02 20:55:00,065 INFO L386 tUnfolder$Statistics]: existing Event has 369 ancestors and is cut-off event [2022-11-02 20:55:00,065 INFO L386 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-11-02 20:55:00,090 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), 137#L99-4true, Black: 772#true, Black: 742#true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 629#L47-3true, Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:55:00,091 INFO L383 tUnfolder$Statistics]: this new event has 377 ancestors and is cut-off event [2022-11-02 20:55:00,091 INFO L386 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-11-02 20:55:00,091 INFO L386 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-11-02 20:55:00,091 INFO L386 tUnfolder$Statistics]: existing Event has 370 ancestors and is cut-off event [2022-11-02 20:55:00,186 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, Black: 747#true, 757#true, 634#L99-3true, 629#L47-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:55:00,187 INFO L383 tUnfolder$Statistics]: this new event has 378 ancestors and is cut-off event [2022-11-02 20:55:00,187 INFO L386 tUnfolder$Statistics]: existing Event has 371 ancestors and is cut-off event [2022-11-02 20:55:00,187 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-02 20:55:00,187 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-02 20:55:00,187 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-02 20:55:00,199 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 137#L99-4true, Black: 742#true, Black: 747#true, 757#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 629#L47-3true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:55:00,199 INFO L383 tUnfolder$Statistics]: this new event has 379 ancestors and is cut-off event [2022-11-02 20:55:00,199 INFO L386 tUnfolder$Statistics]: existing Event has 372 ancestors and is cut-off event [2022-11-02 20:55:00,199 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-02 20:55:00,199 INFO L386 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-11-02 20:55:00,199 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-02 20:55:00,525 INFO L130 PetriNetUnfolder]: 15345/74692 cut-off events. [2022-11-02 20:55:00,525 INFO L131 PetriNetUnfolder]: For 59/989 co-relation queries the response was YES. [2022-11-02 20:55:00,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102500 conditions, 74692 events. 15345/74692 cut-off events. For 59/989 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 1029590 event pairs, 4572 based on Foata normal form. 48/66516 useless extension candidates. Maximal degree in co-relation 102400. Up to 7345 conditions per place. [2022-11-02 20:55:01,240 INFO L137 encePairwiseOnDemand]: 709/714 looper letters, 199 selfloop transitions, 4 changer transitions 0/764 dead transitions. [2022-11-02 20:55:01,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 764 transitions, 2020 flow [2022-11-02 20:55:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:55:01,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3960 transitions. [2022-11-02 20:55:01,250 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9243697478991597 [2022-11-02 20:55:01,250 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3960 transitions. [2022-11-02 20:55:01,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3960 transitions. [2022-11-02 20:55:01,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:01,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3960 transitions. [2022-11-02 20:55:01,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 660.0) internal successors, (3960), 6 states have internal predecessors, (3960), 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) [2022-11-02 20:55:01,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 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) [2022-11-02 20:55:01,276 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 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) [2022-11-02 20:55:01,276 INFO L175 Difference]: Start difference. First operand has 618 places, 621 transitions, 1328 flow. Second operand 6 states and 3960 transitions. [2022-11-02 20:55:01,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 764 transitions, 2020 flow [2022-11-02 20:55:01,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 764 transitions, 2020 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:55:01,322 INFO L231 Difference]: Finished difference. Result has 622 places, 620 transitions, 1334 flow [2022-11-02 20:55:01,323 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=622, PETRI_TRANSITIONS=620} [2022-11-02 20:55:01,324 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-02 20:55:01,324 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 620 transitions, 1334 flow [2022-11-02 20:55:01,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 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) [2022-11-02 20:55:01,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:01,325 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:01,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:55:01,326 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:55:01,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1726403402, now seen corresponding path program 1 times [2022-11-02 20:55:01,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:01,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262672213] [2022-11-02 20:55:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:01,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:01,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262672213] [2022-11-02 20:55:01,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262672213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:01,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:01,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:55:01,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136016547] [2022-11-02 20:55:01,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:01,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:01,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:01,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:02,008 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 714 [2022-11-02 20:55:02,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 620 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 619.0) internal successors, (3714), 6 states have internal predecessors, (3714), 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) [2022-11-02 20:55:02,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:02,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 714 [2022-11-02 20:55:02,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:23,091 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][251], [154#L64-3true, Black: 767#true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 747#true, 757#true, 629#L47-3true, 471#L99-2true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-02 20:55:23,091 INFO L383 tUnfolder$Statistics]: this new event has 363 ancestors and is cut-off event [2022-11-02 20:55:23,091 INFO L386 tUnfolder$Statistics]: existing Event has 175 ancestors and is cut-off event [2022-11-02 20:55:23,091 INFO L386 tUnfolder$Statistics]: existing Event has 269 ancestors and is cut-off event [2022-11-02 20:55:23,091 INFO L386 tUnfolder$Statistics]: existing Event has 269 ancestors and is cut-off event [2022-11-02 20:55:23,396 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][251], [154#L64-3true, Black: 767#true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 747#true, 757#true, Black: 752#true, 629#L47-3true, 471#L99-2true, 774#(= |#race~A~0| 0), Black: 762#true]) [2022-11-02 20:55:23,396 INFO L383 tUnfolder$Statistics]: this new event has 368 ancestors and is cut-off event [2022-11-02 20:55:23,396 INFO L386 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-11-02 20:55:23,397 INFO L386 tUnfolder$Statistics]: existing Event has 180 ancestors and is cut-off event [2022-11-02 20:55:23,397 INFO L386 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-11-02 20:55:23,402 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][251], [154#L64-3true, Black: 767#true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 747#true, 629#L47-3true, 471#L99-2true, 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-02 20:55:23,403 INFO L383 tUnfolder$Statistics]: this new event has 368 ancestors and is cut-off event [2022-11-02 20:55:23,403 INFO L386 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-11-02 20:55:23,403 INFO L386 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-11-02 20:55:23,403 INFO L386 tUnfolder$Statistics]: existing Event has 180 ancestors and is cut-off event [2022-11-02 20:55:23,478 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][251], [Black: 767#true, 154#L64-3true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 747#true, Black: 752#true, 629#L47-3true, 471#L99-2true, 774#(= |#race~A~0| 0), Black: 757#true, Black: 762#true]) [2022-11-02 20:55:23,478 INFO L383 tUnfolder$Statistics]: this new event has 373 ancestors and is cut-off event [2022-11-02 20:55:23,478 INFO L386 tUnfolder$Statistics]: existing Event has 185 ancestors and is cut-off event [2022-11-02 20:55:23,479 INFO L386 tUnfolder$Statistics]: existing Event has 279 ancestors and is cut-off event [2022-11-02 20:55:23,479 INFO L386 tUnfolder$Statistics]: existing Event has 279 ancestors and is cut-off event [2022-11-02 20:55:23,681 INFO L130 PetriNetUnfolder]: 20169/110848 cut-off events. [2022-11-02 20:55:23,681 INFO L131 PetriNetUnfolder]: For 7378/7500 co-relation queries the response was YES. [2022-11-02 20:55:24,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153455 conditions, 110848 events. 20169/110848 cut-off events. For 7378/7500 co-relation queries the response was YES. Maximal size of possible extension queue 1285. Compared 1667585 event pairs, 6211 based on Foata normal form. 0/100295 useless extension candidates. Maximal degree in co-relation 153353. Up to 15816 conditions per place. [2022-11-02 20:55:24,670 INFO L137 encePairwiseOnDemand]: 706/714 looper letters, 170 selfloop transitions, 5 changer transitions 0/725 dead transitions. [2022-11-02 20:55:24,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 725 transitions, 1930 flow [2022-11-02 20:55:24,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:55:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3880 transitions. [2022-11-02 20:55:24,680 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9056956115779645 [2022-11-02 20:55:24,680 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3880 transitions. [2022-11-02 20:55:24,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3880 transitions. [2022-11-02 20:55:24,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:24,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3880 transitions. [2022-11-02 20:55:24,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 646.6666666666666) internal successors, (3880), 6 states have internal predecessors, (3880), 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) [2022-11-02 20:55:24,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 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) [2022-11-02 20:55:24,700 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 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) [2022-11-02 20:55:24,700 INFO L175 Difference]: Start difference. First operand has 622 places, 620 transitions, 1334 flow. Second operand 6 states and 3880 transitions. [2022-11-02 20:55:24,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 725 transitions, 1930 flow [2022-11-02 20:55:24,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 725 transitions, 1895 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:55:24,790 INFO L231 Difference]: Finished difference. Result has 620 places, 617 transitions, 1331 flow [2022-11-02 20:55:24,794 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1321, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1331, PETRI_PLACES=620, PETRI_TRANSITIONS=617} [2022-11-02 20:55:24,794 INFO L287 CegarLoopForPetriNet]: 669 programPoint places, -49 predicate places. [2022-11-02 20:55:24,795 INFO L495 AbstractCegarLoop]: Abstraction has has 620 places, 617 transitions, 1331 flow [2022-11-02 20:55:24,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 619.0) internal successors, (3714), 6 states have internal predecessors, (3714), 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) [2022-11-02 20:55:24,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:24,797 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:24,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:55:24,797 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-02 20:55:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:24,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2048121129, now seen corresponding path program 1 times [2022-11-02 20:55:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:24,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851261724] [2022-11-02 20:55:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:25,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:25,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851261724] [2022-11-02 20:55:25,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851261724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:25,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:25,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:55:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003038599] [2022-11-02 20:55:25,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:25,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:25,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:25,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:25,332 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 714 [2022-11-02 20:55:25,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 617 transitions, 1331 flow. Second operand has 6 states, 6 states have (on average 619.1666666666666) internal successors, (3715), 6 states have internal predecessors, (3715), 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) [2022-11-02 20:55:25,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:25,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 714 [2022-11-02 20:55:25,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand