./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:27:52,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:27:52,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:27:52,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:27:52,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:27:52,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:27:52,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:27:52,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:27:52,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:27:52,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:27:52,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:27:52,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:27:52,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:27:52,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:27:52,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:27:52,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:27:52,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:27:52,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:27:52,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:27:52,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:27:52,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:27:52,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:27:52,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:27:52,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:27:52,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:27:52,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:27:52,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:27:52,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:27:52,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:27:52,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:27:52,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:27:52,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:27:52,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:27:52,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:27:52,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:27:52,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:27:52,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:27:52,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:27:52,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:27:52,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:27:52,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:27:52,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:27:52,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:27:52,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:27:52,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:27:52,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:27:52,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:27:52,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:27:52,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:27:52,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:27:52,429 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:27:52,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:27:52,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:27:52,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:27:52,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:27:52,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:27:52,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:27:52,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:27:52,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:27:52,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:27:52,431 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:27:52,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:27:52,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:27:52,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:27:52,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:27:52,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:27:52,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:27:52,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:27:52,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:52,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:27:52,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:27:52,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:27:52,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:27:52,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:27:52,436 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:27:52,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:27:52,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:27:52,436 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_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d [2022-11-18 18:27:52,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:27:52,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:27:52,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:27:52,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:27:52,783 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:27:52,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-11-18 18:27:52,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/data/7e98c9584/71fdb0f9cb9f43059ceed5d173fa6dc8/FLAG30023647c [2022-11-18 18:27:53,449 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:27:53,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-11-18 18:27:53,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/data/7e98c9584/71fdb0f9cb9f43059ceed5d173fa6dc8/FLAG30023647c [2022-11-18 18:27:53,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/data/7e98c9584/71fdb0f9cb9f43059ceed5d173fa6dc8 [2022-11-18 18:27:53,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:27:53,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:27:53,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:53,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:27:53,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:27:53,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af3c17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53, skipping insertion in model container [2022-11-18 18:27:53,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:27:53,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:54,116 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-11-18 18:27:54,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:54,138 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:27:54,194 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-11-18 18:27:54,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:54,210 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:27:54,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54 WrapperNode [2022-11-18 18:27:54,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:54,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:54,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:27:54,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:27:54,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,283 INFO L138 Inliner]: procedures = 23, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2022-11-18 18:27:54,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:54,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:27:54,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:27:54,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:27:54,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:27:54,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:27:54,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:27:54,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:27:54,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:54,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:54,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:54,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:27:54,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e9d1f6-4f59-40d1-b538-490a3cf76f6b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:27:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:27:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:27:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:27:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:27:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:27:54,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:27:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:27:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 18:27:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 18:27:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:27:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:27:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:27:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:27:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:27:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:27:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:27:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:27:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:27:54,461 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:27:54,605 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:27:54,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:27:55,458 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:27:55,725 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:27:55,726 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:27:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:55 BoogieIcfgContainer [2022-11-18 18:27:55,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:27:55,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:27:55,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:27:55,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:27:55,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:27:53" (1/3) ... [2022-11-18 18:27:55,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3aa72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:55, skipping insertion in model container [2022-11-18 18:27:55,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (2/3) ... [2022-11-18 18:27:55,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3aa72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:55, skipping insertion in model container [2022-11-18 18:27:55,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:55" (3/3) ... [2022-11-18 18:27:55,760 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2022-11-18 18:27:55,769 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:27:55,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:27:55,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2022-11-18 18:27:55,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:27:55,857 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:27:55,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 284 transitions, 600 flow [2022-11-18 18:27:55,995 INFO L130 PetriNetUnfolder]: 5/280 cut-off events. [2022-11-18 18:27:55,995 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:27:56,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 280 events. 5/280 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 290 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 206. Up to 2 conditions per place. [2022-11-18 18:27:56,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 284 transitions, 600 flow [2022-11-18 18:27:56,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 258 transitions, 540 flow [2022-11-18 18:27:56,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:56,035 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;@40f8a07d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:56,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 109 error locations. [2022-11-18 18:27:56,047 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 18:27:56,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:27:56,048 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:56,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:56,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:27:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash 367884507, now seen corresponding path program 1 times [2022-11-18 18:27:56,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:56,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051873324] [2022-11-18 18:27:56,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:56,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:56,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051873324] [2022-11-18 18:27:56,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051873324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:56,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:56,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:56,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747109574] [2022-11-18 18:27:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:56,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:56,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:56,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:56,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-18 18:27:56,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:56,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:56,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-18 18:27:56,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:57,730 INFO L130 PetriNetUnfolder]: 2442/4251 cut-off events. [2022-11-18 18:27:57,731 INFO L131 PetriNetUnfolder]: For 679/1138 co-relation queries the response was YES. [2022-11-18 18:27:57,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8323 conditions, 4251 events. 2442/4251 cut-off events. For 679/1138 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25051 event pairs, 2439 based on Foata normal form. 1/4124 useless extension candidates. Maximal degree in co-relation 7924. Up to 3535 conditions per place. [2022-11-18 18:27:57,780 INFO L137 encePairwiseOnDemand]: 237/284 looper letters, 28 selfloop transitions, 2 changer transitions 1/213 dead transitions. [2022-11-18 18:27:57,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 213 transitions, 510 flow [2022-11-18 18:27:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2022-11-18 18:27:57,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8169014084507042 [2022-11-18 18:27:57,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2022-11-18 18:27:57,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2022-11-18 18:27:57,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:57,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2022-11-18 18:27:57,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,851 INFO L175 Difference]: Start difference. First operand has 267 places, 258 transitions, 540 flow. Second operand 3 states and 696 transitions. [2022-11-18 18:27:57,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 213 transitions, 510 flow [2022-11-18 18:27:57,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 213 transitions, 494 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 18:27:57,872 INFO L231 Difference]: Finished difference. Result has 217 places, 212 transitions, 436 flow [2022-11-18 18:27:57,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=217, PETRI_TRANSITIONS=212} [2022-11-18 18:27:57,878 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -50 predicate places. [2022-11-18 18:27:57,878 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 212 transitions, 436 flow [2022-11-18 18:27:57,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:57,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:57,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:27:57,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:27:57,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:57,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1468440292, now seen corresponding path program 1 times [2022-11-18 18:27:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:57,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429353721] [2022-11-18 18:27:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:57,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:58,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429353721] [2022-11-18 18:27:58,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429353721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:58,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:58,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975533797] [2022-11-18 18:27:58,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:58,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:58,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-18 18:27:58,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 212 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:58,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-18 18:27:58,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:59,039 INFO L130 PetriNetUnfolder]: 2442/4249 cut-off events. [2022-11-18 18:27:59,040 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:27:59,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7977 conditions, 4249 events. 2442/4249 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24987 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7940. Up to 3535 conditions per place. [2022-11-18 18:27:59,080 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-18 18:27:59,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 211 transitions, 494 flow [2022-11-18 18:27:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:59,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-18 18:27:59,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-18 18:27:59,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-18 18:27:59,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-18 18:27:59,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:59,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-18 18:27:59,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,091 INFO L175 Difference]: Start difference. First operand has 217 places, 212 transitions, 436 flow. Second operand 3 states and 652 transitions. [2022-11-18 18:27:59,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 211 transitions, 494 flow [2022-11-18 18:27:59,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 211 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:59,103 INFO L231 Difference]: Finished difference. Result has 215 places, 211 transitions, 434 flow [2022-11-18 18:27:59,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=215, PETRI_TRANSITIONS=211} [2022-11-18 18:27:59,105 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -52 predicate places. [2022-11-18 18:27:59,105 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 211 transitions, 434 flow [2022-11-18 18:27:59,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:59,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:27:59,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:27:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash -853726258, now seen corresponding path program 1 times [2022-11-18 18:27:59,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110457437] [2022-11-18 18:27:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110457437] [2022-11-18 18:27:59,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110457437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:59,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229018375] [2022-11-18 18:27:59,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:59,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:59,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:59,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-18 18:27:59,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 211 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:59,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-18 18:27:59,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:00,140 INFO L130 PetriNetUnfolder]: 2442/4248 cut-off events. [2022-11-18 18:28:00,141 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:28:00,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4248 events. 2442/4248 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24992 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7932. Up to 3535 conditions per place. [2022-11-18 18:28:00,182 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/210 dead transitions. [2022-11-18 18:28:00,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 210 transitions, 492 flow [2022-11-18 18:28:00,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:00,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-18 18:28:00,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-18 18:28:00,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-18 18:28:00,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-18 18:28:00,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:00,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-18 18:28:00,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,193 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,193 INFO L175 Difference]: Start difference. First operand has 215 places, 211 transitions, 434 flow. Second operand 3 states and 652 transitions. [2022-11-18 18:28:00,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 210 transitions, 492 flow [2022-11-18 18:28:00,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 210 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:00,199 INFO L231 Difference]: Finished difference. Result has 214 places, 210 transitions, 432 flow [2022-11-18 18:28:00,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=214, PETRI_TRANSITIONS=210} [2022-11-18 18:28:00,203 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -53 predicate places. [2022-11-18 18:28:00,203 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 210 transitions, 432 flow [2022-11-18 18:28:00,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:00,204 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:00,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:28:00,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:00,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash 224002833, now seen corresponding path program 1 times [2022-11-18 18:28:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:00,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650440805] [2022-11-18 18:28:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:00,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650440805] [2022-11-18 18:28:00,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650440805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:00,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:00,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:00,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382472495] [2022-11-18 18:28:00,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:00,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:00,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:00,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-18 18:28:00,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 210 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:00,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-18 18:28:00,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:01,245 INFO L130 PetriNetUnfolder]: 2442/4247 cut-off events. [2022-11-18 18:28:01,246 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:28:01,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7975 conditions, 4247 events. 2442/4247 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25000 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7924. Up to 3535 conditions per place. [2022-11-18 18:28:01,283 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2022-11-18 18:28:01,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 209 transitions, 490 flow [2022-11-18 18:28:01,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-18 18:28:01,290 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-18 18:28:01,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-18 18:28:01,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-18 18:28:01,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:01,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-18 18:28:01,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,298 INFO L175 Difference]: Start difference. First operand has 214 places, 210 transitions, 432 flow. Second operand 3 states and 652 transitions. [2022-11-18 18:28:01,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 209 transitions, 490 flow [2022-11-18 18:28:01,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 209 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:01,308 INFO L231 Difference]: Finished difference. Result has 213 places, 209 transitions, 430 flow [2022-11-18 18:28:01,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=213, PETRI_TRANSITIONS=209} [2022-11-18 18:28:01,310 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -54 predicate places. [2022-11-18 18:28:01,310 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 209 transitions, 430 flow [2022-11-18 18:28:01,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:01,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:01,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:28:01,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1383787840, now seen corresponding path program 1 times [2022-11-18 18:28:01,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:01,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853042009] [2022-11-18 18:28:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:01,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:01,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:01,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853042009] [2022-11-18 18:28:01,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853042009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:01,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:01,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:01,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231661795] [2022-11-18 18:28:01,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:01,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:01,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:01,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:01,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 284 [2022-11-18 18:28:01,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 209 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:01,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 284 [2022-11-18 18:28:01,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:02,205 INFO L130 PetriNetUnfolder]: 2442/4246 cut-off events. [2022-11-18 18:28:02,206 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:28:02,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7983 conditions, 4246 events. 2442/4246 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25005 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7925. Up to 3544 conditions per place. [2022-11-18 18:28:02,240 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 37 selfloop transitions, 2 changer transitions 0/208 dead transitions. [2022-11-18 18:28:02,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 208 transitions, 506 flow [2022-11-18 18:28:02,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2022-11-18 18:28:02,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.744131455399061 [2022-11-18 18:28:02,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 634 transitions. [2022-11-18 18:28:02,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 634 transitions. [2022-11-18 18:28:02,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:02,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 634 transitions. [2022-11-18 18:28:02,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,249 INFO L175 Difference]: Start difference. First operand has 213 places, 209 transitions, 430 flow. Second operand 3 states and 634 transitions. [2022-11-18 18:28:02,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 208 transitions, 506 flow [2022-11-18 18:28:02,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 208 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:02,254 INFO L231 Difference]: Finished difference. Result has 212 places, 208 transitions, 428 flow [2022-11-18 18:28:02,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=212, PETRI_TRANSITIONS=208} [2022-11-18 18:28:02,255 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -55 predicate places. [2022-11-18 18:28:02,255 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 208 transitions, 428 flow [2022-11-18 18:28:02,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:02,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:02,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:28:02,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:02,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:02,257 INFO L85 PathProgramCache]: Analyzing trace with hash -275589396, now seen corresponding path program 1 times [2022-11-18 18:28:02,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:02,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928579930] [2022-11-18 18:28:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:02,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:02,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:02,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928579930] [2022-11-18 18:28:02,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928579930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:02,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:02,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700701562] [2022-11-18 18:28:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:02,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:02,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:02,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:02,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-18 18:28:02,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 208 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:02,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-18 18:28:02,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:03,077 INFO L130 PetriNetUnfolder]: 2442/4245 cut-off events. [2022-11-18 18:28:03,078 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:28:03,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4245 events. 2442/4245 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24999 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7911. Up to 3538 conditions per place. [2022-11-18 18:28:03,114 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-18 18:28:03,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 207 transitions, 492 flow [2022-11-18 18:28:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-11-18 18:28:03,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7582159624413145 [2022-11-18 18:28:03,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-11-18 18:28:03,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-11-18 18:28:03,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:03,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-11-18 18:28:03,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,125 INFO L175 Difference]: Start difference. First operand has 212 places, 208 transitions, 428 flow. Second operand 3 states and 646 transitions. [2022-11-18 18:28:03,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 207 transitions, 492 flow [2022-11-18 18:28:03,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 207 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:03,130 INFO L231 Difference]: Finished difference. Result has 211 places, 207 transitions, 426 flow [2022-11-18 18:28:03,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=211, PETRI_TRANSITIONS=207} [2022-11-18 18:28:03,131 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -56 predicate places. [2022-11-18 18:28:03,132 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 207 transitions, 426 flow [2022-11-18 18:28:03,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:03,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:03,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:28:03,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:03,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:03,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2093318507, now seen corresponding path program 1 times [2022-11-18 18:28:03,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:03,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132486025] [2022-11-18 18:28:03,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:03,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:03,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:03,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132486025] [2022-11-18 18:28:03,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132486025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:03,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:03,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:03,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635893634] [2022-11-18 18:28:03,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:03,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:03,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:03,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:03,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:03,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-18 18:28:03,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 207 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:03,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-18 18:28:03,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:04,095 INFO L130 PetriNetUnfolder]: 2442/4244 cut-off events. [2022-11-18 18:28:04,095 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:28:04,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7975 conditions, 4244 events. 2442/4244 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24998 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7903. Up to 3538 conditions per place. [2022-11-18 18:28:04,123 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/206 dead transitions. [2022-11-18 18:28:04,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 206 transitions, 490 flow [2022-11-18 18:28:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:04,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-11-18 18:28:04,126 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7582159624413145 [2022-11-18 18:28:04,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-11-18 18:28:04,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-11-18 18:28:04,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:04,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-11-18 18:28:04,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,132 INFO L175 Difference]: Start difference. First operand has 211 places, 207 transitions, 426 flow. Second operand 3 states and 646 transitions. [2022-11-18 18:28:04,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 206 transitions, 490 flow [2022-11-18 18:28:04,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 206 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:04,136 INFO L231 Difference]: Finished difference. Result has 210 places, 206 transitions, 424 flow [2022-11-18 18:28:04,137 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=210, PETRI_TRANSITIONS=206} [2022-11-18 18:28:04,137 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -57 predicate places. [2022-11-18 18:28:04,138 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 206 transitions, 424 flow [2022-11-18 18:28:04,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,138 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:04,138 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:04,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:28:04,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:04,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:04,139 INFO L85 PathProgramCache]: Analyzing trace with hash -311622669, now seen corresponding path program 1 times [2022-11-18 18:28:04,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:04,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095163073] [2022-11-18 18:28:04,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:04,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:04,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:04,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095163073] [2022-11-18 18:28:04,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095163073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:04,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:04,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:04,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216010936] [2022-11-18 18:28:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:04,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:04,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:04,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:04,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:04,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 284 [2022-11-18 18:28:04,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 206 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:04,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 284 [2022-11-18 18:28:04,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:04,884 INFO L130 PetriNetUnfolder]: 2442/4243 cut-off events. [2022-11-18 18:28:04,884 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-18 18:28:04,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4243 events. 2442/4243 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25094 event pairs, 2439 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7897. Up to 3540 conditions per place. [2022-11-18 18:28:04,915 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 33 selfloop transitions, 2 changer transitions 0/205 dead transitions. [2022-11-18 18:28:04,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 205 transitions, 492 flow [2022-11-18 18:28:04,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2022-11-18 18:28:04,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-11-18 18:28:04,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 639 transitions. [2022-11-18 18:28:04,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 639 transitions. [2022-11-18 18:28:04,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:04,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 639 transitions. [2022-11-18 18:28:04,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,923 INFO L175 Difference]: Start difference. First operand has 210 places, 206 transitions, 424 flow. Second operand 3 states and 639 transitions. [2022-11-18 18:28:04,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 205 transitions, 492 flow [2022-11-18 18:28:04,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 205 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:04,927 INFO L231 Difference]: Finished difference. Result has 209 places, 205 transitions, 422 flow [2022-11-18 18:28:04,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=209, PETRI_TRANSITIONS=205} [2022-11-18 18:28:04,928 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-18 18:28:04,929 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 205 transitions, 422 flow [2022-11-18 18:28:04,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,929 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:04,930 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:04,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:28:04,930 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1472978387, now seen corresponding path program 1 times [2022-11-18 18:28:04,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:04,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484548917] [2022-11-18 18:28:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:04,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:04,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484548917] [2022-11-18 18:28:04,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484548917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:04,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:04,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:04,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366997626] [2022-11-18 18:28:04,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:04,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:04,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:04,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:04,972 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 284 [2022-11-18 18:28:04,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 205 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:04,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 284 [2022-11-18 18:28:04,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:06,259 INFO L130 PetriNetUnfolder]: 3446/7553 cut-off events. [2022-11-18 18:28:06,259 INFO L131 PetriNetUnfolder]: For 272/2206 co-relation queries the response was YES. [2022-11-18 18:28:06,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12881 conditions, 7553 events. 3446/7553 cut-off events. For 272/2206 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 60614 event pairs, 1640 based on Foata normal form. 5/7269 useless extension candidates. Maximal degree in co-relation 12795. Up to 2848 conditions per place. [2022-11-18 18:28:06,302 INFO L137 encePairwiseOnDemand]: 272/284 looper letters, 47 selfloop transitions, 9 changer transitions 0/225 dead transitions. [2022-11-18 18:28:06,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 225 transitions, 580 flow [2022-11-18 18:28:06,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:06,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2022-11-18 18:28:06,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7769953051643192 [2022-11-18 18:28:06,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2022-11-18 18:28:06,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2022-11-18 18:28:06,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:06,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2022-11-18 18:28:06,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,310 INFO L175 Difference]: Start difference. First operand has 209 places, 205 transitions, 422 flow. Second operand 3 states and 662 transitions. [2022-11-18 18:28:06,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 225 transitions, 580 flow [2022-11-18 18:28:06,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 225 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:06,315 INFO L231 Difference]: Finished difference. Result has 208 places, 210 transitions, 480 flow [2022-11-18 18:28:06,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=208, PETRI_TRANSITIONS=210} [2022-11-18 18:28:06,316 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-18 18:28:06,316 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 210 transitions, 480 flow [2022-11-18 18:28:06,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:06,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:06,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:28:06,317 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:06,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1807009001, now seen corresponding path program 1 times [2022-11-18 18:28:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:06,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068970968] [2022-11-18 18:28:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:06,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:06,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:06,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068970968] [2022-11-18 18:28:06,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068970968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:06,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:06,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:06,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575245998] [2022-11-18 18:28:06,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:06,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:06,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:06,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:06,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:06,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-18 18:28:06,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 210 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:06,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-18 18:28:06,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:07,190 INFO L130 PetriNetUnfolder]: 3446/6246 cut-off events. [2022-11-18 18:28:07,190 INFO L131 PetriNetUnfolder]: For 2353/2851 co-relation queries the response was YES. [2022-11-18 18:28:07,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14882 conditions, 6246 events. 3446/6246 cut-off events. For 2353/2851 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 42435 event pairs, 2186 based on Foata normal form. 1/6069 useless extension candidates. Maximal degree in co-relation 9854. Up to 5071 conditions per place. [2022-11-18 18:28:07,242 INFO L137 encePairwiseOnDemand]: 278/284 looper letters, 39 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2022-11-18 18:28:07,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 216 transitions, 583 flow [2022-11-18 18:28:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2022-11-18 18:28:07,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7723004694835681 [2022-11-18 18:28:07,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2022-11-18 18:28:07,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2022-11-18 18:28:07,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:07,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2022-11-18 18:28:07,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,250 INFO L175 Difference]: Start difference. First operand has 208 places, 210 transitions, 480 flow. Second operand 3 states and 658 transitions. [2022-11-18 18:28:07,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 216 transitions, 583 flow [2022-11-18 18:28:07,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 216 transitions, 565 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:28:07,273 INFO L231 Difference]: Finished difference. Result has 208 places, 213 transitions, 491 flow [2022-11-18 18:28:07,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=208, PETRI_TRANSITIONS=213} [2022-11-18 18:28:07,275 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-18 18:28:07,275 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 213 transitions, 491 flow [2022-11-18 18:28:07,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:07,276 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:07,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:28:07,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:07,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:07,277 INFO L85 PathProgramCache]: Analyzing trace with hash 684519464, now seen corresponding path program 1 times [2022-11-18 18:28:07,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:07,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586329760] [2022-11-18 18:28:07,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:07,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:07,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:07,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586329760] [2022-11-18 18:28:07,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586329760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:07,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:07,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:07,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299190572] [2022-11-18 18:28:07,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:07,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:07,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:07,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:07,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-18 18:28:07,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 213 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:07,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-18 18:28:07,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:08,493 INFO L130 PetriNetUnfolder]: 4871/8649 cut-off events. [2022-11-18 18:28:08,493 INFO L131 PetriNetUnfolder]: For 2480/2978 co-relation queries the response was YES. [2022-11-18 18:28:08,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20717 conditions, 8649 events. 4871/8649 cut-off events. For 2480/2978 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 61175 event pairs, 3163 based on Foata normal form. 0/8406 useless extension candidates. Maximal degree in co-relation 10763. Up to 5302 conditions per place. [2022-11-18 18:28:08,559 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 69 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-18 18:28:08,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 242 transitions, 743 flow [2022-11-18 18:28:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:08,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-11-18 18:28:08,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863849765258216 [2022-11-18 18:28:08,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-11-18 18:28:08,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-11-18 18:28:08,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:08,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-11-18 18:28:08,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,567 INFO L175 Difference]: Start difference. First operand has 208 places, 213 transitions, 491 flow. Second operand 3 states and 670 transitions. [2022-11-18 18:28:08,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 242 transitions, 743 flow [2022-11-18 18:28:08,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 242 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:28:08,573 INFO L231 Difference]: Finished difference. Result has 209 places, 213 transitions, 494 flow [2022-11-18 18:28:08,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=209, PETRI_TRANSITIONS=213} [2022-11-18 18:28:08,574 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-18 18:28:08,574 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 213 transitions, 494 flow [2022-11-18 18:28:08,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:08,575 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:08,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:28:08,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:08,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:08,576 INFO L85 PathProgramCache]: Analyzing trace with hash 792623491, now seen corresponding path program 1 times [2022-11-18 18:28:08,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:08,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912386379] [2022-11-18 18:28:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:08,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:08,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:08,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912386379] [2022-11-18 18:28:08,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912386379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:08,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:08,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:28:08,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212254647] [2022-11-18 18:28:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:08,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:28:08,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:08,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:28:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:28:08,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-18 18:28:08,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 213 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:08,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-18 18:28:08,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:10,520 INFO L130 PetriNetUnfolder]: 6053/10489 cut-off events. [2022-11-18 18:28:10,520 INFO L131 PetriNetUnfolder]: For 3395/4032 co-relation queries the response was YES. [2022-11-18 18:28:10,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26013 conditions, 10489 events. 6053/10489 cut-off events. For 3395/4032 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 73858 event pairs, 3785 based on Foata normal form. 1/10124 useless extension candidates. Maximal degree in co-relation 18234. Up to 7524 conditions per place. [2022-11-18 18:28:10,592 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 64 selfloop transitions, 4 changer transitions 3/238 dead transitions. [2022-11-18 18:28:10,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 238 transitions, 726 flow [2022-11-18 18:28:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:28:10,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:28:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2022-11-18 18:28:10,595 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.778169014084507 [2022-11-18 18:28:10,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 663 transitions. [2022-11-18 18:28:10,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 663 transitions. [2022-11-18 18:28:10,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:10,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 663 transitions. [2022-11-18 18:28:10,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,600 INFO L175 Difference]: Start difference. First operand has 209 places, 213 transitions, 494 flow. Second operand 3 states and 663 transitions. [2022-11-18 18:28:10,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 238 transitions, 726 flow [2022-11-18 18:28:10,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 238 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:28:10,606 INFO L231 Difference]: Finished difference. Result has 209 places, 211 transitions, 505 flow [2022-11-18 18:28:10,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=505, PETRI_PLACES=209, PETRI_TRANSITIONS=211} [2022-11-18 18:28:10,607 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-18 18:28:10,608 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 211 transitions, 505 flow [2022-11-18 18:28:10,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:10,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:10,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:28:10,609 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:10,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1315510907, now seen corresponding path program 1 times [2022-11-18 18:28:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:10,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413939327] [2022-11-18 18:28:10,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:10,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:11,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:11,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413939327] [2022-11-18 18:28:11,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413939327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:11,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:11,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:28:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553096902] [2022-11-18 18:28:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:11,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:11,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-18 18:28:11,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 211 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:11,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:11,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-18 18:28:11,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:19,225 INFO L130 PetriNetUnfolder]: 47225/65914 cut-off events. [2022-11-18 18:28:19,225 INFO L131 PetriNetUnfolder]: For 41300/41300 co-relation queries the response was YES. [2022-11-18 18:28:19,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179518 conditions, 65914 events. 47225/65914 cut-off events. For 41300/41300 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 402804 event pairs, 7597 based on Foata normal form. 0/65312 useless extension candidates. Maximal degree in co-relation 148128. Up to 23527 conditions per place. [2022-11-18 18:28:19,611 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 194 selfloop transitions, 4 changer transitions 1/342 dead transitions. [2022-11-18 18:28:19,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 342 transitions, 1433 flow [2022-11-18 18:28:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:28:19,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1218 transitions. [2022-11-18 18:28:19,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7147887323943662 [2022-11-18 18:28:19,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1218 transitions. [2022-11-18 18:28:19,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1218 transitions. [2022-11-18 18:28:19,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:19,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1218 transitions. [2022-11-18 18:28:19,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:19,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:19,623 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:19,623 INFO L175 Difference]: Start difference. First operand has 209 places, 211 transitions, 505 flow. Second operand 6 states and 1218 transitions. [2022-11-18 18:28:19,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 342 transitions, 1433 flow [2022-11-18 18:28:19,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 342 transitions, 1417 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:28:19,635 INFO L231 Difference]: Finished difference. Result has 209 places, 209 transitions, 505 flow [2022-11-18 18:28:19,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=505, PETRI_PLACES=209, PETRI_TRANSITIONS=209} [2022-11-18 18:28:19,636 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-18 18:28:19,637 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 209 transitions, 505 flow [2022-11-18 18:28:19,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:19,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:19,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:19,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:28:19,639 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:19,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:19,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1627179127, now seen corresponding path program 1 times [2022-11-18 18:28:19,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:19,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804844469] [2022-11-18 18:28:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:19,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:20,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:20,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804844469] [2022-11-18 18:28:20,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804844469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:20,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:20,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:28:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161564950] [2022-11-18 18:28:20,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:20,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:20,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:20,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:20,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:20,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-18 18:28:20,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 209 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:20,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:20,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-18 18:28:20,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:28,618 INFO L130 PetriNetUnfolder]: 41131/58449 cut-off events. [2022-11-18 18:28:28,619 INFO L131 PetriNetUnfolder]: For 38978/38978 co-relation queries the response was YES. [2022-11-18 18:28:28,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163436 conditions, 58449 events. 41131/58449 cut-off events. For 38978/38978 co-relation queries the response was YES. Maximal size of possible extension queue 1869. Compared 368429 event pairs, 25981 based on Foata normal form. 0/57770 useless extension candidates. Maximal degree in co-relation 55372. Up to 49614 conditions per place. [2022-11-18 18:28:28,984 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 145 selfloop transitions, 4 changer transitions 0/292 dead transitions. [2022-11-18 18:28:28,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 292 transitions, 1137 flow [2022-11-18 18:28:28,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:28:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2022-11-18 18:28:28,989 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7018779342723005 [2022-11-18 18:28:28,989 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1196 transitions. [2022-11-18 18:28:28,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1196 transitions. [2022-11-18 18:28:28,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:28,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1196 transitions. [2022-11-18 18:28:28,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.33333333333334) internal successors, (1196), 6 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:28,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:28,997 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:28,998 INFO L175 Difference]: Start difference. First operand has 209 places, 209 transitions, 505 flow. Second operand 6 states and 1196 transitions. [2022-11-18 18:28:28,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 292 transitions, 1137 flow [2022-11-18 18:28:29,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 292 transitions, 1130 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:28:29,033 INFO L231 Difference]: Finished difference. Result has 208 places, 208 transitions, 504 flow [2022-11-18 18:28:29,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=208, PETRI_TRANSITIONS=208} [2022-11-18 18:28:29,035 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-18 18:28:29,035 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 208 transitions, 504 flow [2022-11-18 18:28:29,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:29,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:29,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:29,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:28:29,036 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-18 18:28:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1028861308, now seen corresponding path program 1 times [2022-11-18 18:28:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:29,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325388873] [2022-11-18 18:28:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:29,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:29,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:29,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325388873] [2022-11-18 18:28:29,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325388873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:29,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:29,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:28:29,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612241658] [2022-11-18 18:28:29,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:29,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:29,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:29,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:29,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:29,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-18 18:28:29,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 208 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:29,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:29,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-18 18:28:29,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand