./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.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_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/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_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/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_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/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 f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d --- 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 19:59:09,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:59:09,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:59:09,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:59:09,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:59:09,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:59:09,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:59:09,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:59:09,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:59:09,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:59:09,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:59:09,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:59:09,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:59:09,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:59:09,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:59:09,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:59:09,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:59:09,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:59:09,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:59:09,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:59:09,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:59:09,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:59:09,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:59:09,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:59:09,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:59:09,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:59:09,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:59:09,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:59:09,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:59:09,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:59:09,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:59:09,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:59:09,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:59:09,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:59:09,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:59:09,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:59:09,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:59:09,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:59:09,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:59:09,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:59:09,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:59:09,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:59:09,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:59:09,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:59:09,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:59:09,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:59:09,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:59:09,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:59:09,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:59:09,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:59:09,317 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:59:09,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:59:09,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:59:09,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:59:09,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:59:09,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:59:09,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:59:09,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:59:09,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:59:09,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:59:09,320 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:59:09,320 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:59:09,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:59:09,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:59:09,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:59:09,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:59:09,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:59:09,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:59:09,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:59:09,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:59:09,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:59:09,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:59:09,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:59:09,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:59:09,324 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:59:09,324 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:59:09,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:59:09,324 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_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2022-11-18 19:59:09,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:59:09,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:59:09,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:59:09,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:59:09,625 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:59:09,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-11-18 19:59:09,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/data/a5e613090/74c9b5f62b884e08b9394ed0fbd0d68d/FLAGa7abd813a [2022-11-18 19:59:10,271 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:59:10,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-11-18 19:59:10,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/data/a5e613090/74c9b5f62b884e08b9394ed0fbd0d68d/FLAGa7abd813a [2022-11-18 19:59:10,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/data/a5e613090/74c9b5f62b884e08b9394ed0fbd0d68d [2022-11-18 19:59:10,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:59:10,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:59:10,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:59:10,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:59:10,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:59:10,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:59:10" (1/1) ... [2022-11-18 19:59:10,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c974c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:10, skipping insertion in model container [2022-11-18 19:59:10,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:59:10" (1/1) ... [2022-11-18 19:59:10,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:59:10,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:59:11,014 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_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-11-18 19:59:11,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:59:11,028 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:59:11,104 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_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-11-18 19:59:11,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:59:11,136 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:59:11,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11 WrapperNode [2022-11-18 19:59:11,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:59:11,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:59:11,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:59:11,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:59:11,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,249 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 1006 [2022-11-18 19:59:11,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:59:11,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:59:11,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:59:11,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:59:11,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:59:11,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:59:11,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:59:11,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:59:11,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (1/1) ... [2022-11-18 19:59:11,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:59:11,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:11,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:11,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd8f07d-6a7d-495f-a6dd-dd8078a6439c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:59:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:59:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:59:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:59:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:59:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:59:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:59:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:59:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:59:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:59:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:59:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 19:59:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 19:59:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:59:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:59:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:59:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:59:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:59:11,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:59:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:59:11,446 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 19:59:11,666 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:59:11,683 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:59:13,188 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:59:14,280 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:59:14,280 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 19:59:14,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:59:14 BoogieIcfgContainer [2022-11-18 19:59:14,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:59:14,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:59:14,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:59:14,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:59:14,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:59:10" (1/3) ... [2022-11-18 19:59:14,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6a6b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:59:14, skipping insertion in model container [2022-11-18 19:59:14,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:11" (2/3) ... [2022-11-18 19:59:14,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6a6b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:59:14, skipping insertion in model container [2022-11-18 19:59:14,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:59:14" (3/3) ... [2022-11-18 19:59:14,295 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2022-11-18 19:59:14,308 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:59:14,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:59:14,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 168 error locations. [2022-11-18 19:59:14,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:59:14,620 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 19:59:14,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 625 places, 637 transitions, 1306 flow [2022-11-18 19:59:14,961 INFO L130 PetriNetUnfolder]: 25/633 cut-off events. [2022-11-18 19:59:14,961 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:59:14,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 633 events. 25/633 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1101 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 545. Up to 2 conditions per place. [2022-11-18 19:59:14,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 625 places, 637 transitions, 1306 flow [2022-11-18 19:59:14,988 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 600 places, 611 transitions, 1246 flow [2022-11-18 19:59:15,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:59:15,018 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;@4710b64f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:59:15,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 304 error locations. [2022-11-18 19:59:15,026 INFO L130 PetriNetUnfolder]: 0/38 cut-off events. [2022-11-18 19:59:15,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:59:15,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:15,027 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] [2022-11-18 19:59:15,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:15,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:15,047 INFO L85 PathProgramCache]: Analyzing trace with hash -753956402, now seen corresponding path program 1 times [2022-11-18 19:59:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:15,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971992147] [2022-11-18 19:59:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:15,367 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 19:59:15,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:15,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971992147] [2022-11-18 19:59:15,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971992147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:15,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:15,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:15,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505574737] [2022-11-18 19:59:15,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:15,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:15,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:15,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:15,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:15,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 611 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:15,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:15,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:15,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:16,262 INFO L130 PetriNetUnfolder]: 285/828 cut-off events. [2022-11-18 19:59:16,263 INFO L131 PetriNetUnfolder]: For 104/124 co-relation queries the response was YES. [2022-11-18 19:59:16,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 828 events. 285/828 cut-off events. For 104/124 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1698 event pairs, 147 based on Foata normal form. 146/902 useless extension candidates. Maximal degree in co-relation 843. Up to 392 conditions per place. [2022-11-18 19:59:16,274 INFO L137 encePairwiseOnDemand]: 486/637 looper letters, 25 selfloop transitions, 2 changer transitions 8/462 dead transitions. [2022-11-18 19:59:16,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 462 transitions, 1002 flow [2022-11-18 19:59:16,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:16,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1550 transitions. [2022-11-18 19:59:16,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8110936682365254 [2022-11-18 19:59:16,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1550 transitions. [2022-11-18 19:59:16,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1550 transitions. [2022-11-18 19:59:16,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:16,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1550 transitions. [2022-11-18 19:59:16,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 516.6666666666666) internal successors, (1550), 3 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states 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 19:59:16,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:16,328 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:16,330 INFO L175 Difference]: Start difference. First operand has 600 places, 611 transitions, 1246 flow. Second operand 3 states and 1550 transitions. [2022-11-18 19:59:16,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 462 transitions, 1002 flow [2022-11-18 19:59:16,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 462 transitions, 986 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 19:59:16,353 INFO L231 Difference]: Finished difference. Result has 461 places, 454 transitions, 920 flow [2022-11-18 19:59:16,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=461, PETRI_TRANSITIONS=454} [2022-11-18 19:59:16,360 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -139 predicate places. [2022-11-18 19:59:16,360 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 454 transitions, 920 flow [2022-11-18 19:59:16,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:16,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:16,362 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] [2022-11-18 19:59:16,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:59:16,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:16,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:16,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1167247478, now seen corresponding path program 1 times [2022-11-18 19:59:16,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:16,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962481859] [2022-11-18 19:59:16,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:16,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:16,466 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 19:59:16,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:16,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962481859] [2022-11-18 19:59:16,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962481859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:16,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:16,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:16,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674359935] [2022-11-18 19:59:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:16,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:16,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:16,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:16,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:16,472 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:16,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 454 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:16,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:16,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:16,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:17,010 INFO L130 PetriNetUnfolder]: 285/819 cut-off events. [2022-11-18 19:59:17,011 INFO L131 PetriNetUnfolder]: For 15/35 co-relation queries the response was YES. [2022-11-18 19:59:17,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 819 events. 285/819 cut-off events. For 15/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1685 event pairs, 147 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 1215. Up to 393 conditions per place. [2022-11-18 19:59:17,017 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2022-11-18 19:59:17,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 453 transitions, 974 flow [2022-11-18 19:59:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:17,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:17,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:17,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:17,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:17,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:17,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:17,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:17,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:17,033 INFO L175 Difference]: Start difference. First operand has 461 places, 454 transitions, 920 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:17,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 453 transitions, 974 flow [2022-11-18 19:59:17,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 453 transitions, 970 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:17,042 INFO L231 Difference]: Finished difference. Result has 452 places, 453 transitions, 918 flow [2022-11-18 19:59:17,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=452, PETRI_TRANSITIONS=453} [2022-11-18 19:59:17,044 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -148 predicate places. [2022-11-18 19:59:17,044 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 453 transitions, 918 flow [2022-11-18 19:59:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:17,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:17,046 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] [2022-11-18 19:59:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:59:17,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1572390318, now seen corresponding path program 1 times [2022-11-18 19:59:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:17,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691500215] [2022-11-18 19:59:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:17,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:17,165 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 19:59:17,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:17,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691500215] [2022-11-18 19:59:17,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691500215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:17,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:17,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:17,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663133968] [2022-11-18 19:59:17,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:17,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:17,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:17,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:17,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:17,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 453 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:17,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:17,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:17,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:17,701 INFO L130 PetriNetUnfolder]: 285/818 cut-off events. [2022-11-18 19:59:17,701 INFO L131 PetriNetUnfolder]: For 15/35 co-relation queries the response was YES. [2022-11-18 19:59:17,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 818 events. 285/818 cut-off events. For 15/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1699 event pairs, 147 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 1207. Up to 393 conditions per place. [2022-11-18 19:59:17,708 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2022-11-18 19:59:17,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 452 transitions, 972 flow [2022-11-18 19:59:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:17,714 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:17,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:17,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:17,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:17,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:17,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:17,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:17,726 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:17,726 INFO L175 Difference]: Start difference. First operand has 452 places, 453 transitions, 918 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:17,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 452 transitions, 972 flow [2022-11-18 19:59:17,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 452 transitions, 968 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:17,737 INFO L231 Difference]: Finished difference. Result has 451 places, 452 transitions, 916 flow [2022-11-18 19:59:17,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=451, PETRI_TRANSITIONS=452} [2022-11-18 19:59:17,739 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -149 predicate places. [2022-11-18 19:59:17,739 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 452 transitions, 916 flow [2022-11-18 19:59:17,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:17,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:17,741 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] [2022-11-18 19:59:17,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:59:17,742 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:17,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:17,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1458108363, now seen corresponding path program 1 times [2022-11-18 19:59:17,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:17,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144447413] [2022-11-18 19:59:17,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:17,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:17,807 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 19:59:17,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144447413] [2022-11-18 19:59:17,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144447413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:17,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:17,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:17,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402993937] [2022-11-18 19:59:17,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:17,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:17,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:17,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:17,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:17,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:17,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 452 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:17,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:17,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:17,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:18,382 INFO L130 PetriNetUnfolder]: 360/1052 cut-off events. [2022-11-18 19:59:18,382 INFO L131 PetriNetUnfolder]: For 31/43 co-relation queries the response was YES. [2022-11-18 19:59:18,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1052 events. 360/1052 cut-off events. For 31/43 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3000 event pairs, 174 based on Foata normal form. 0/950 useless extension candidates. Maximal degree in co-relation 1541. Up to 403 conditions per place. [2022-11-18 19:59:18,391 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 36 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2022-11-18 19:59:18,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 465 transitions, 1025 flow [2022-11-18 19:59:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1422 transitions. [2022-11-18 19:59:18,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7441130298273155 [2022-11-18 19:59:18,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1422 transitions. [2022-11-18 19:59:18,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1422 transitions. [2022-11-18 19:59:18,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:18,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1422 transitions. [2022-11-18 19:59:18,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states 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 19:59:18,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:18,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:18,406 INFO L175 Difference]: Start difference. First operand has 451 places, 452 transitions, 916 flow. Second operand 3 states and 1422 transitions. [2022-11-18 19:59:18,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 465 transitions, 1025 flow [2022-11-18 19:59:18,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 465 transitions, 1021 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:18,416 INFO L231 Difference]: Finished difference. Result has 451 places, 452 transitions, 920 flow [2022-11-18 19:59:18,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=451, PETRI_TRANSITIONS=452} [2022-11-18 19:59:18,418 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -149 predicate places. [2022-11-18 19:59:18,418 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 452 transitions, 920 flow [2022-11-18 19:59:18,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:18,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:18,420 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] [2022-11-18 19:59:18,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:59:18,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1099080807, now seen corresponding path program 1 times [2022-11-18 19:59:18,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:18,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040522940] [2022-11-18 19:59:18,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:18,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:18,470 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 19:59:18,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:18,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040522940] [2022-11-18 19:59:18,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040522940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:18,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:18,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:18,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134587506] [2022-11-18 19:59:18,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:18,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:18,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:18,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:18,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:18,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:18,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 452 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:18,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:18,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:18,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:18,999 INFO L130 PetriNetUnfolder]: 360/1014 cut-off events. [2022-11-18 19:59:19,000 INFO L131 PetriNetUnfolder]: For 61/88 co-relation queries the response was YES. [2022-11-18 19:59:19,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1610 conditions, 1014 events. 360/1014 cut-off events. For 61/88 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2735 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 569. Up to 495 conditions per place. [2022-11-18 19:59:19,008 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 24 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2022-11-18 19:59:19,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 451 transitions, 970 flow [2022-11-18 19:59:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:19,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:19,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:19,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:19,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:19,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:19,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:19,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:19,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:19,023 INFO L175 Difference]: Start difference. First operand has 451 places, 452 transitions, 920 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:19,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 451 transitions, 970 flow [2022-11-18 19:59:19,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 451 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:19,032 INFO L231 Difference]: Finished difference. Result has 451 places, 451 transitions, 920 flow [2022-11-18 19:59:19,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=451, PETRI_TRANSITIONS=451} [2022-11-18 19:59:19,037 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -149 predicate places. [2022-11-18 19:59:19,037 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 451 transitions, 920 flow [2022-11-18 19:59:19,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:19,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:19,039 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] [2022-11-18 19:59:19,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:59:19,040 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:19,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:19,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2117110435, now seen corresponding path program 1 times [2022-11-18 19:59:19,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:19,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187605635] [2022-11-18 19:59:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:19,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:19,132 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 19:59:19,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:19,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187605635] [2022-11-18 19:59:19,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187605635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:19,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:19,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:19,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740352257] [2022-11-18 19:59:19,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:19,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:19,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:19,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:19,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 451 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:19,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:19,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:19,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:19,627 INFO L130 PetriNetUnfolder]: 360/1013 cut-off events. [2022-11-18 19:59:19,627 INFO L131 PetriNetUnfolder]: For 60/87 co-relation queries the response was YES. [2022-11-18 19:59:19,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 1013 events. 360/1013 cut-off events. For 60/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2699 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1525. Up to 493 conditions per place. [2022-11-18 19:59:19,635 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 24 selfloop transitions, 1 changer transitions 0/450 dead transitions. [2022-11-18 19:59:19,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 450 transitions, 968 flow [2022-11-18 19:59:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:19,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-18 19:59:19,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-18 19:59:19,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-18 19:59:19,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-18 19:59:19,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:19,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-18 19:59:19,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 19:59:19,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:19,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:19,650 INFO L175 Difference]: Start difference. First operand has 451 places, 451 transitions, 920 flow. Second operand 3 states and 1408 transitions. [2022-11-18 19:59:19,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 450 transitions, 968 flow [2022-11-18 19:59:19,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 450 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:19,658 INFO L231 Difference]: Finished difference. Result has 450 places, 450 transitions, 916 flow [2022-11-18 19:59:19,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=450, PETRI_TRANSITIONS=450} [2022-11-18 19:59:19,660 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -150 predicate places. [2022-11-18 19:59:19,660 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 450 transitions, 916 flow [2022-11-18 19:59:19,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:19,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:19,662 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:59:19,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:59:19,662 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:19,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:19,663 INFO L85 PathProgramCache]: Analyzing trace with hash 595968034, now seen corresponding path program 1 times [2022-11-18 19:59:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:19,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225592471] [2022-11-18 19:59:19,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:19,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:19,734 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 19:59:19,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:19,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225592471] [2022-11-18 19:59:19,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225592471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:19,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:19,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:19,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34335484] [2022-11-18 19:59:19,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:19,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:19,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:19,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:19,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 450 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:19,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:19,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:19,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:20,487 INFO L130 PetriNetUnfolder]: 360/1012 cut-off events. [2022-11-18 19:59:20,488 INFO L131 PetriNetUnfolder]: For 60/87 co-relation queries the response was YES. [2022-11-18 19:59:20,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1594 conditions, 1012 events. 360/1012 cut-off events. For 60/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2715 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1525. Up to 495 conditions per place. [2022-11-18 19:59:20,497 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 24 selfloop transitions, 2 changer transitions 0/449 dead transitions. [2022-11-18 19:59:20,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 449 transitions, 966 flow [2022-11-18 19:59:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:20,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:20,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:20,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:20,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:20,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:20,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:20,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:20,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:20,514 INFO L175 Difference]: Start difference. First operand has 450 places, 450 transitions, 916 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:20,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 449 transitions, 966 flow [2022-11-18 19:59:20,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 449 transitions, 965 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:20,524 INFO L231 Difference]: Finished difference. Result has 450 places, 449 transitions, 917 flow [2022-11-18 19:59:20,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=917, PETRI_PLACES=450, PETRI_TRANSITIONS=449} [2022-11-18 19:59:20,526 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -150 predicate places. [2022-11-18 19:59:20,527 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 449 transitions, 917 flow [2022-11-18 19:59:20,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:20,528 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:20,528 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] [2022-11-18 19:59:20,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:59:20,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2065229595, now seen corresponding path program 1 times [2022-11-18 19:59:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242277990] [2022-11-18 19:59:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:21,027 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 19:59:21,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:21,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242277990] [2022-11-18 19:59:21,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242277990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:21,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:21,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:59:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787896610] [2022-11-18 19:59:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:21,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:59:21,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:59:21,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:59:21,033 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 637 [2022-11-18 19:59:21,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 449 transitions, 917 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 19:59:21,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:21,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 637 [2022-11-18 19:59:21,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:23,142 INFO L130 PetriNetUnfolder]: 2112/3248 cut-off events. [2022-11-18 19:59:23,142 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-18 19:59:23,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6243 conditions, 3248 events. 2112/3248 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 11679 event pairs, 1184 based on Foata normal form. 0/3111 useless extension candidates. Maximal degree in co-relation 6175. Up to 2792 conditions per place. [2022-11-18 19:59:23,173 INFO L137 encePairwiseOnDemand]: 613/637 looper letters, 89 selfloop transitions, 20 changer transitions 0/445 dead transitions. [2022-11-18 19:59:23,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 445 transitions, 1127 flow [2022-11-18 19:59:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:59:23,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:59:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2362 transitions. [2022-11-18 19:59:23,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6180010465724751 [2022-11-18 19:59:23,182 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2362 transitions. [2022-11-18 19:59:23,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2362 transitions. [2022-11-18 19:59:23,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:23,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2362 transitions. [2022-11-18 19:59:23,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 393.6666666666667) internal successors, (2362), 6 states have internal predecessors, (2362), 0 states have call successors, (0), 0 states 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 19:59:23,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 19:59:23,201 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 19:59:23,201 INFO L175 Difference]: Start difference. First operand has 450 places, 449 transitions, 917 flow. Second operand 6 states and 2362 transitions. [2022-11-18 19:59:23,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 445 transitions, 1127 flow [2022-11-18 19:59:23,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 445 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:23,213 INFO L231 Difference]: Finished difference. Result has 449 places, 445 transitions, 945 flow [2022-11-18 19:59:23,214 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=945, PETRI_PLACES=449, PETRI_TRANSITIONS=445} [2022-11-18 19:59:23,215 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -151 predicate places. [2022-11-18 19:59:23,215 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 445 transitions, 945 flow [2022-11-18 19:59:23,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 19:59:23,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:23,216 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] [2022-11-18 19:59:23,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:59:23,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:23,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,217 INFO L85 PathProgramCache]: Analyzing trace with hash -536411750, now seen corresponding path program 1 times [2022-11-18 19:59:23,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:23,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725460359] [2022-11-18 19:59:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:23,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,274 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 19:59:23,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:23,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725460359] [2022-11-18 19:59:23,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725460359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:23,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:23,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:23,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674993722] [2022-11-18 19:59:23,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:23,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:23,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:23,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:23,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:23,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 445 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:23,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:23,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:23,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:23,902 INFO L130 PetriNetUnfolder]: 360/1007 cut-off events. [2022-11-18 19:59:23,903 INFO L131 PetriNetUnfolder]: For 60/87 co-relation queries the response was YES. [2022-11-18 19:59:23,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1007 events. 360/1007 cut-off events. For 60/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2702 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1548. Up to 498 conditions per place. [2022-11-18 19:59:23,910 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2022-11-18 19:59:23,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 444 transitions, 1001 flow [2022-11-18 19:59:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:23,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:23,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:23,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:23,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:23,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:23,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:23,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:23,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:23,934 INFO L175 Difference]: Start difference. First operand has 449 places, 445 transitions, 945 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:23,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 444 transitions, 1001 flow [2022-11-18 19:59:23,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 444 transitions, 961 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:59:23,944 INFO L231 Difference]: Finished difference. Result has 445 places, 444 transitions, 907 flow [2022-11-18 19:59:23,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=445, PETRI_TRANSITIONS=444} [2022-11-18 19:59:23,946 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -155 predicate places. [2022-11-18 19:59:23,946 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 444 transitions, 907 flow [2022-11-18 19:59:23,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:23,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:23,947 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] [2022-11-18 19:59:23,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:59:23,947 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:23,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1601844426, now seen corresponding path program 1 times [2022-11-18 19:59:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:23,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779359879] [2022-11-18 19:59:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:23,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,995 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 19:59:23,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:23,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779359879] [2022-11-18 19:59:23,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779359879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:23,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:24,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:24,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75488476] [2022-11-18 19:59:24,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:24,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:24,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:24,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:24,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:24,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:24,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 444 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:24,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:24,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:24,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:24,807 INFO L130 PetriNetUnfolder]: 596/1586 cut-off events. [2022-11-18 19:59:24,807 INFO L131 PetriNetUnfolder]: For 107/147 co-relation queries the response was YES. [2022-11-18 19:59:24,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2507 conditions, 1586 events. 596/1586 cut-off events. For 107/147 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6770 event pairs, 188 based on Foata normal form. 2/1465 useless extension candidates. Maximal degree in co-relation 2439. Up to 451 conditions per place. [2022-11-18 19:59:24,820 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 40 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2022-11-18 19:59:24,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 460 transitions, 1031 flow [2022-11-18 19:59:24,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1424 transitions. [2022-11-18 19:59:24,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7451596023024595 [2022-11-18 19:59:24,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1424 transitions. [2022-11-18 19:59:24,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1424 transitions. [2022-11-18 19:59:24,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:24,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1424 transitions. [2022-11-18 19:59:24,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 19:59:24,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:24,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:24,834 INFO L175 Difference]: Start difference. First operand has 445 places, 444 transitions, 907 flow. Second operand 3 states and 1424 transitions. [2022-11-18 19:59:24,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 460 transitions, 1031 flow [2022-11-18 19:59:24,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 460 transitions, 1027 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:24,842 INFO L231 Difference]: Finished difference. Result has 445 places, 444 transitions, 911 flow [2022-11-18 19:59:24,843 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=445, PETRI_TRANSITIONS=444} [2022-11-18 19:59:24,843 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -155 predicate places. [2022-11-18 19:59:24,843 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 444 transitions, 911 flow [2022-11-18 19:59:24,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:24,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:24,844 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] [2022-11-18 19:59:24,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:59:24,845 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:24,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:24,845 INFO L85 PathProgramCache]: Analyzing trace with hash 183113259, now seen corresponding path program 1 times [2022-11-18 19:59:24,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:24,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045643291] [2022-11-18 19:59:24,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:24,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:24,891 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 19:59:24,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:24,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045643291] [2022-11-18 19:59:24,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045643291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:24,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:24,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:24,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322176688] [2022-11-18 19:59:24,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:24,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:24,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:24,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 444 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:24,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:24,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:24,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:25,681 INFO L130 PetriNetUnfolder]: 596/1585 cut-off events. [2022-11-18 19:59:25,681 INFO L131 PetriNetUnfolder]: For 141/181 co-relation queries the response was YES. [2022-11-18 19:59:25,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 1585 events. 596/1585 cut-off events. For 141/181 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6800 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2563. Up to 817 conditions per place. [2022-11-18 19:59:25,695 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 25 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-18 19:59:25,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 443 transitions, 963 flow [2022-11-18 19:59:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:25,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:25,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:25,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:25,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:25,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:25,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:25,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:25,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:25,709 INFO L175 Difference]: Start difference. First operand has 445 places, 444 transitions, 911 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:25,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 443 transitions, 963 flow [2022-11-18 19:59:25,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 443 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:25,718 INFO L231 Difference]: Finished difference. Result has 445 places, 443 transitions, 911 flow [2022-11-18 19:59:25,719 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=445, PETRI_TRANSITIONS=443} [2022-11-18 19:59:25,719 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -155 predicate places. [2022-11-18 19:59:25,720 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 443 transitions, 911 flow [2022-11-18 19:59:25,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:25,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:25,721 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] [2022-11-18 19:59:25,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:59:25,721 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:25,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:25,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2048303369, now seen corresponding path program 1 times [2022-11-18 19:59:25,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:25,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910006762] [2022-11-18 19:59:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:25,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:25,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910006762] [2022-11-18 19:59:25,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910006762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:25,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:25,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:25,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347304199] [2022-11-18 19:59:25,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:25,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:25,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:25,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:25,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:25,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:25,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 443 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:25,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:25,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:25,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:26,535 INFO L130 PetriNetUnfolder]: 596/1584 cut-off events. [2022-11-18 19:59:26,535 INFO L131 PetriNetUnfolder]: For 140/180 co-relation queries the response was YES. [2022-11-18 19:59:26,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 1584 events. 596/1584 cut-off events. For 140/180 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6795 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2525. Up to 820 conditions per place. [2022-11-18 19:59:26,550 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 28 selfloop transitions, 2 changer transitions 0/442 dead transitions. [2022-11-18 19:59:26,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 442 transitions, 969 flow [2022-11-18 19:59:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:26,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:26,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:26,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:26,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:26,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:26,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:26,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:26,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:26,562 INFO L175 Difference]: Start difference. First operand has 445 places, 443 transitions, 911 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:26,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 442 transitions, 969 flow [2022-11-18 19:59:26,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 442 transitions, 965 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:26,573 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 909 flow [2022-11-18 19:59:26,574 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=909, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-18 19:59:26,576 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -156 predicate places. [2022-11-18 19:59:26,577 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 909 flow [2022-11-18 19:59:26,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:26,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:26,577 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] [2022-11-18 19:59:26,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:59:26,578 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:26,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1455668455, now seen corresponding path program 1 times [2022-11-18 19:59:26,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:26,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499120599] [2022-11-18 19:59:26,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:26,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:26,632 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 19:59:26,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:26,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499120599] [2022-11-18 19:59:26,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499120599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:26,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:26,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:26,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435672171] [2022-11-18 19:59:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:26,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:26,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:26,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:26,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 909 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:26,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:26,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:26,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:27,455 INFO L130 PetriNetUnfolder]: 596/1583 cut-off events. [2022-11-18 19:59:27,455 INFO L131 PetriNetUnfolder]: For 141/181 co-relation queries the response was YES. [2022-11-18 19:59:27,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 1583 events. 596/1583 cut-off events. For 141/181 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6773 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2521. Up to 815 conditions per place. [2022-11-18 19:59:27,467 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 25 selfloop transitions, 1 changer transitions 0/441 dead transitions. [2022-11-18 19:59:27,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 441 transitions, 959 flow [2022-11-18 19:59:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:27,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-18 19:59:27,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-18 19:59:27,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-18 19:59:27,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-18 19:59:27,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:27,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-18 19:59:27,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 19:59:27,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:27,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:27,484 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 909 flow. Second operand 3 states and 1408 transitions. [2022-11-18 19:59:27,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 441 transitions, 959 flow [2022-11-18 19:59:27,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 441 transitions, 955 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:27,494 INFO L231 Difference]: Finished difference. Result has 443 places, 441 transitions, 905 flow [2022-11-18 19:59:27,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=905, PETRI_PLACES=443, PETRI_TRANSITIONS=441} [2022-11-18 19:59:27,496 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -157 predicate places. [2022-11-18 19:59:27,496 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 441 transitions, 905 flow [2022-11-18 19:59:27,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:27,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:27,498 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] [2022-11-18 19:59:27,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:59:27,498 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash -538619270, now seen corresponding path program 1 times [2022-11-18 19:59:27,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:27,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21414455] [2022-11-18 19:59:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:27,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:27,568 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 19:59:27,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:27,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21414455] [2022-11-18 19:59:27,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21414455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:27,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:27,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:27,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295182309] [2022-11-18 19:59:27,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:27,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:27,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:27,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:27,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:27,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:27,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 441 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:27,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:27,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:27,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:28,533 INFO L130 PetriNetUnfolder]: 596/1582 cut-off events. [2022-11-18 19:59:28,533 INFO L131 PetriNetUnfolder]: For 140/180 co-relation queries the response was YES. [2022-11-18 19:59:28,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2589 conditions, 1582 events. 596/1582 cut-off events. For 140/180 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6772 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2519. Up to 817 conditions per place. [2022-11-18 19:59:28,546 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 25 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2022-11-18 19:59:28,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 440 transitions, 957 flow [2022-11-18 19:59:28,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:28,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:28,551 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:28,551 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:28,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:28,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:28,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:28,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:28,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:28,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:28,561 INFO L175 Difference]: Start difference. First operand has 443 places, 441 transitions, 905 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:28,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 440 transitions, 957 flow [2022-11-18 19:59:28,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 440 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:28,571 INFO L231 Difference]: Finished difference. Result has 443 places, 440 transitions, 906 flow [2022-11-18 19:59:28,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=443, PETRI_TRANSITIONS=440} [2022-11-18 19:59:28,573 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -157 predicate places. [2022-11-18 19:59:28,573 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 440 transitions, 906 flow [2022-11-18 19:59:28,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:28,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:28,574 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] [2022-11-18 19:59:28,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:59:28,574 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:28,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash -143136383, now seen corresponding path program 1 times [2022-11-18 19:59:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:28,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806822612] [2022-11-18 19:59:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:28,642 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 19:59:28,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:28,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806822612] [2022-11-18 19:59:28,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806822612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:28,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:28,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:28,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387108968] [2022-11-18 19:59:28,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:28,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:28,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:28,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:28,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:28,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:28,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 440 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:28,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:28,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:28,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:29,545 INFO L130 PetriNetUnfolder]: 596/1581 cut-off events. [2022-11-18 19:59:29,545 INFO L131 PetriNetUnfolder]: For 140/180 co-relation queries the response was YES. [2022-11-18 19:59:29,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1581 events. 596/1581 cut-off events. For 140/180 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6778 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2523. Up to 820 conditions per place. [2022-11-18 19:59:29,555 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 28 selfloop transitions, 2 changer transitions 0/439 dead transitions. [2022-11-18 19:59:29,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 439 transitions, 964 flow [2022-11-18 19:59:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:29,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:29,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:29,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:29,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:29,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:29,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:29,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:29,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:29,567 INFO L175 Difference]: Start difference. First operand has 443 places, 440 transitions, 906 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:29,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 439 transitions, 964 flow [2022-11-18 19:59:29,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 439 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:29,574 INFO L231 Difference]: Finished difference. Result has 442 places, 439 transitions, 904 flow [2022-11-18 19:59:29,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=442, PETRI_TRANSITIONS=439} [2022-11-18 19:59:29,576 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -158 predicate places. [2022-11-18 19:59:29,576 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 439 transitions, 904 flow [2022-11-18 19:59:29,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:29,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:29,577 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 19:59:29,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:59:29,577 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:29,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:29,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1132813819, now seen corresponding path program 1 times [2022-11-18 19:59:29,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:29,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835745913] [2022-11-18 19:59:29,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:29,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:29,645 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 19:59:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:29,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835745913] [2022-11-18 19:59:29,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835745913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:29,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:29,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247210808] [2022-11-18 19:59:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:29,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:29,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:29,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:29,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:29,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:29,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 439 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:29,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:29,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:29,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:30,709 INFO L130 PetriNetUnfolder]: 908/2661 cut-off events. [2022-11-18 19:59:30,709 INFO L131 PetriNetUnfolder]: For 275/325 co-relation queries the response was YES. [2022-11-18 19:59:30,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4193 conditions, 2661 events. 908/2661 cut-off events. For 275/325 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16042 event pairs, 140 based on Foata normal form. 3/2441 useless extension candidates. Maximal degree in co-relation 4124. Up to 894 conditions per place. [2022-11-18 19:59:30,727 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 43 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2022-11-18 19:59:30,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 457 transitions, 1044 flow [2022-11-18 19:59:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1425 transitions. [2022-11-18 19:59:30,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7456828885400314 [2022-11-18 19:59:30,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1425 transitions. [2022-11-18 19:59:30,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1425 transitions. [2022-11-18 19:59:30,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:30,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1425 transitions. [2022-11-18 19:59:30,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states 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 19:59:30,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:30,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:30,740 INFO L175 Difference]: Start difference. First operand has 442 places, 439 transitions, 904 flow. Second operand 3 states and 1425 transitions. [2022-11-18 19:59:30,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 457 transitions, 1044 flow [2022-11-18 19:59:30,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 457 transitions, 1040 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:30,748 INFO L231 Difference]: Finished difference. Result has 442 places, 439 transitions, 908 flow [2022-11-18 19:59:30,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=442, PETRI_TRANSITIONS=439} [2022-11-18 19:59:30,749 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -158 predicate places. [2022-11-18 19:59:30,749 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 439 transitions, 908 flow [2022-11-18 19:59:30,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:30,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:30,750 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, 1, 1, 1, 1] [2022-11-18 19:59:30,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:59:30,751 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:30,751 INFO L85 PathProgramCache]: Analyzing trace with hash 721211649, now seen corresponding path program 1 times [2022-11-18 19:59:30,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:30,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322246337] [2022-11-18 19:59:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:30,805 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 19:59:30,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:30,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322246337] [2022-11-18 19:59:30,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322246337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:30,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:30,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600801814] [2022-11-18 19:59:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:30,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:30,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:30,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:30,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 439 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:30,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:30,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:30,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:31,855 INFO L130 PetriNetUnfolder]: 908/2444 cut-off events. [2022-11-18 19:59:31,855 INFO L131 PetriNetUnfolder]: For 412/474 co-relation queries the response was YES. [2022-11-18 19:59:31,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4256 conditions, 2444 events. 908/2444 cut-off events. For 412/474 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13962 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4185. Up to 1250 conditions per place. [2022-11-18 19:59:31,874 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/438 dead transitions. [2022-11-18 19:59:31,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 438 transitions, 962 flow [2022-11-18 19:59:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:31,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:31,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:31,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:31,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:31,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:31,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:31,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:31,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:31,886 INFO L175 Difference]: Start difference. First operand has 442 places, 439 transitions, 908 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:31,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 438 transitions, 962 flow [2022-11-18 19:59:31,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 438 transitions, 960 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:31,894 INFO L231 Difference]: Finished difference. Result has 442 places, 438 transitions, 908 flow [2022-11-18 19:59:31,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=442, PETRI_TRANSITIONS=438} [2022-11-18 19:59:31,895 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -158 predicate places. [2022-11-18 19:59:31,895 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 438 transitions, 908 flow [2022-11-18 19:59:31,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:31,896 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:31,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:59:31,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:59:31,897 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:31,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:31,897 INFO L85 PathProgramCache]: Analyzing trace with hash -294482368, now seen corresponding path program 1 times [2022-11-18 19:59:31,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:31,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445674196] [2022-11-18 19:59:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:31,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:31,949 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 19:59:31,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:31,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445674196] [2022-11-18 19:59:31,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445674196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:31,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:31,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:31,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652293382] [2022-11-18 19:59:31,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:31,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:31,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:31,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:31,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:31,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:31,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 438 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:31,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:31,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:31,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:32,883 INFO L130 PetriNetUnfolder]: 908/2443 cut-off events. [2022-11-18 19:59:32,883 INFO L131 PetriNetUnfolder]: For 411/473 co-relation queries the response was YES. [2022-11-18 19:59:32,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4167 conditions, 2443 events. 908/2443 cut-off events. For 411/473 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13956 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4096. Up to 1253 conditions per place. [2022-11-18 19:59:32,901 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 29 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2022-11-18 19:59:32,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 437 transitions, 968 flow [2022-11-18 19:59:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:32,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:32,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:32,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:32,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:32,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:32,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:32,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:32,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:32,913 INFO L175 Difference]: Start difference. First operand has 442 places, 438 transitions, 908 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:32,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 437 transitions, 968 flow [2022-11-18 19:59:32,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 437 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:32,920 INFO L231 Difference]: Finished difference. Result has 441 places, 437 transitions, 906 flow [2022-11-18 19:59:32,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=441, PETRI_TRANSITIONS=437} [2022-11-18 19:59:32,922 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -159 predicate places. [2022-11-18 19:59:32,922 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 437 transitions, 906 flow [2022-11-18 19:59:32,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:32,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:32,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:59:32,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:59:32,923 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1062099060, now seen corresponding path program 1 times [2022-11-18 19:59:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:32,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054211879] [2022-11-18 19:59:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:32,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:32,978 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 19:59:32,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:32,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054211879] [2022-11-18 19:59:32,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054211879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:32,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:32,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:32,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587553382] [2022-11-18 19:59:32,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:32,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:32,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:32,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:32,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:32,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:32,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 437 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:32,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:32,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:32,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:33,891 INFO L130 PetriNetUnfolder]: 908/2442 cut-off events. [2022-11-18 19:59:33,891 INFO L131 PetriNetUnfolder]: For 412/474 co-relation queries the response was YES. [2022-11-18 19:59:33,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4162 conditions, 2442 events. 908/2442 cut-off events. For 412/474 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13959 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4092. Up to 1248 conditions per place. [2022-11-18 19:59:33,911 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 26 selfloop transitions, 1 changer transitions 0/436 dead transitions. [2022-11-18 19:59:33,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 436 transitions, 958 flow [2022-11-18 19:59:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-18 19:59:33,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-18 19:59:33,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-18 19:59:33,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-18 19:59:33,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:33,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-18 19:59:33,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 19:59:33,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:33,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:33,923 INFO L175 Difference]: Start difference. First operand has 441 places, 437 transitions, 906 flow. Second operand 3 states and 1408 transitions. [2022-11-18 19:59:33,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 436 transitions, 958 flow [2022-11-18 19:59:33,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 436 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:33,930 INFO L231 Difference]: Finished difference. Result has 440 places, 436 transitions, 902 flow [2022-11-18 19:59:33,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=440, PETRI_TRANSITIONS=436} [2022-11-18 19:59:33,931 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -160 predicate places. [2022-11-18 19:59:33,931 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 436 transitions, 902 flow [2022-11-18 19:59:33,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:33,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:33,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:33,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:59:33,933 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash -712476356, now seen corresponding path program 1 times [2022-11-18 19:59:33,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:33,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216517049] [2022-11-18 19:59:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:33,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:33,994 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 19:59:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:33,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216517049] [2022-11-18 19:59:33,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216517049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:33,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:33,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:33,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143133105] [2022-11-18 19:59:33,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:33,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:33,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:33,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:33,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:33,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 436 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:33,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:33,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:33,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:35,132 INFO L130 PetriNetUnfolder]: 908/2441 cut-off events. [2022-11-18 19:59:35,132 INFO L131 PetriNetUnfolder]: For 411/473 co-relation queries the response was YES. [2022-11-18 19:59:35,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4161 conditions, 2441 events. 908/2441 cut-off events. For 411/473 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13968 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4090. Up to 1250 conditions per place. [2022-11-18 19:59:35,153 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2022-11-18 19:59:35,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 435 transitions, 956 flow [2022-11-18 19:59:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:35,158 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:35,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:35,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:35,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:35,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:35,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:35,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:35,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:35,168 INFO L175 Difference]: Start difference. First operand has 440 places, 436 transitions, 902 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:35,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 435 transitions, 956 flow [2022-11-18 19:59:35,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 435 transitions, 955 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:35,177 INFO L231 Difference]: Finished difference. Result has 440 places, 435 transitions, 903 flow [2022-11-18 19:59:35,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=440, PETRI_TRANSITIONS=435} [2022-11-18 19:59:35,178 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -160 predicate places. [2022-11-18 19:59:35,178 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 435 transitions, 903 flow [2022-11-18 19:59:35,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:35,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:35,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:35,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:59:35,180 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:35,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1860648038, now seen corresponding path program 1 times [2022-11-18 19:59:35,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:35,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984624575] [2022-11-18 19:59:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:35,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:35,265 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 19:59:35,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:35,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984624575] [2022-11-18 19:59:35,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984624575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:35,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:35,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:35,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120553525] [2022-11-18 19:59:35,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:35,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:35,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:35,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:35,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:35,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:35,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 435 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:35,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:35,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:35,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:36,214 INFO L130 PetriNetUnfolder]: 908/2440 cut-off events. [2022-11-18 19:59:36,214 INFO L131 PetriNetUnfolder]: For 411/473 co-relation queries the response was YES. [2022-11-18 19:59:36,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4165 conditions, 2440 events. 908/2440 cut-off events. For 411/473 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13897 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4094. Up to 1253 conditions per place. [2022-11-18 19:59:36,231 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 29 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2022-11-18 19:59:36,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 434 transitions, 963 flow [2022-11-18 19:59:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:36,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:36,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:36,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:36,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:36,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:36,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:36,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:36,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:36,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:36,243 INFO L175 Difference]: Start difference. First operand has 440 places, 435 transitions, 903 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:36,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 434 transitions, 963 flow [2022-11-18 19:59:36,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 434 transitions, 959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:36,251 INFO L231 Difference]: Finished difference. Result has 439 places, 434 transitions, 901 flow [2022-11-18 19:59:36,252 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=901, PETRI_PLACES=439, PETRI_TRANSITIONS=434} [2022-11-18 19:59:36,252 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -161 predicate places. [2022-11-18 19:59:36,252 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 434 transitions, 901 flow [2022-11-18 19:59:36,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:36,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:36,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:36,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:59:36,254 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash -66984209, now seen corresponding path program 1 times [2022-11-18 19:59:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:36,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061220643] [2022-11-18 19:59:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:36,318 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 19:59:36,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:36,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061220643] [2022-11-18 19:59:36,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061220643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:36,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:36,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:36,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510294190] [2022-11-18 19:59:36,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:36,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:36,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:36,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:36,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 434 transitions, 901 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:36,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:36,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:36,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:37,584 INFO L130 PetriNetUnfolder]: 1343/3831 cut-off events. [2022-11-18 19:59:37,584 INFO L131 PetriNetUnfolder]: For 698/775 co-relation queries the response was YES. [2022-11-18 19:59:37,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6363 conditions, 3831 events. 1343/3831 cut-off events. For 698/775 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 27110 event pairs, 236 based on Foata normal form. 6/3503 useless extension candidates. Maximal degree in co-relation 6293. Up to 1316 conditions per place. [2022-11-18 19:59:37,614 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 44 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2022-11-18 19:59:37,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 452 transitions, 1046 flow [2022-11-18 19:59:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1424 transitions. [2022-11-18 19:59:37,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7451596023024595 [2022-11-18 19:59:37,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1424 transitions. [2022-11-18 19:59:37,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1424 transitions. [2022-11-18 19:59:37,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:37,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1424 transitions. [2022-11-18 19:59:37,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 19:59:37,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:37,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:37,626 INFO L175 Difference]: Start difference. First operand has 439 places, 434 transitions, 901 flow. Second operand 3 states and 1424 transitions. [2022-11-18 19:59:37,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 452 transitions, 1046 flow [2022-11-18 19:59:37,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 452 transitions, 1042 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:37,634 INFO L231 Difference]: Finished difference. Result has 439 places, 434 transitions, 905 flow [2022-11-18 19:59:37,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=905, PETRI_PLACES=439, PETRI_TRANSITIONS=434} [2022-11-18 19:59:37,635 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -161 predicate places. [2022-11-18 19:59:37,635 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 434 transitions, 905 flow [2022-11-18 19:59:37,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:37,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:37,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:37,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:59:37,636 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:37,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash -812377806, now seen corresponding path program 1 times [2022-11-18 19:59:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:37,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629583340] [2022-11-18 19:59:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:37,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:37,702 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 19:59:37,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:37,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629583340] [2022-11-18 19:59:37,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629583340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:37,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:37,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:37,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882973940] [2022-11-18 19:59:37,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:37,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:37,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:37,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:37,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:37,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:37,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 434 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:37,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:37,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:37,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:38,904 INFO L130 PetriNetUnfolder]: 1343/3792 cut-off events. [2022-11-18 19:59:38,904 INFO L131 PetriNetUnfolder]: For 910/997 co-relation queries the response was YES. [2022-11-18 19:59:38,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6760 conditions, 3792 events. 1343/3792 cut-off events. For 910/997 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27423 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6688. Up to 1854 conditions per place. [2022-11-18 19:59:38,926 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2022-11-18 19:59:38,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 433 transitions, 961 flow [2022-11-18 19:59:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:38,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:38,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:38,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:38,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:38,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:38,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:38,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:38,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:38,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:38,938 INFO L175 Difference]: Start difference. First operand has 439 places, 434 transitions, 905 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:38,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 433 transitions, 961 flow [2022-11-18 19:59:38,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 433 transitions, 959 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:38,945 INFO L231 Difference]: Finished difference. Result has 439 places, 433 transitions, 905 flow [2022-11-18 19:59:38,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=905, PETRI_PLACES=439, PETRI_TRANSITIONS=433} [2022-11-18 19:59:38,946 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -161 predicate places. [2022-11-18 19:59:38,947 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 433 transitions, 905 flow [2022-11-18 19:59:38,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:38,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:38,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:38,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 19:59:38,948 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:38,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash -889778269, now seen corresponding path program 1 times [2022-11-18 19:59:38,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:38,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073968399] [2022-11-18 19:59:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:39,014 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 19:59:39,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:39,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073968399] [2022-11-18 19:59:39,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073968399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:39,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:39,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797363977] [2022-11-18 19:59:39,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:39,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:39,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:39,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-18 19:59:39,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 433 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:39,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:39,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-18 19:59:39,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:40,268 INFO L130 PetriNetUnfolder]: 1343/3791 cut-off events. [2022-11-18 19:59:40,268 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-18 19:59:40,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6619 conditions, 3791 events. 1343/3791 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27423 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6547. Up to 1857 conditions per place. [2022-11-18 19:59:40,288 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 30 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2022-11-18 19:59:40,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 432 transitions, 967 flow [2022-11-18 19:59:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:40,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-18 19:59:40,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-18 19:59:40,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-18 19:59:40,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-18 19:59:40,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:40,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-18 19:59:40,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 19:59:40,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:40,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:40,299 INFO L175 Difference]: Start difference. First operand has 439 places, 433 transitions, 905 flow. Second operand 3 states and 1403 transitions. [2022-11-18 19:59:40,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 432 transitions, 967 flow [2022-11-18 19:59:40,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 432 transitions, 963 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:40,306 INFO L231 Difference]: Finished difference. Result has 438 places, 432 transitions, 903 flow [2022-11-18 19:59:40,307 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=438, PETRI_TRANSITIONS=432} [2022-11-18 19:59:40,308 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -162 predicate places. [2022-11-18 19:59:40,308 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 432 transitions, 903 flow [2022-11-18 19:59:40,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:59:40,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:40,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:40,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 19:59:40,309 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:40,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1495912523, now seen corresponding path program 1 times [2022-11-18 19:59:40,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:40,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640896194] [2022-11-18 19:59:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:40,374 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 19:59:40,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:40,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640896194] [2022-11-18 19:59:40,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640896194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:40,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:40,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:40,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049627685] [2022-11-18 19:59:40,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:40,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:40,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:40,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:40,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:40,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:40,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 432 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:40,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:40,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:40,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:41,560 INFO L130 PetriNetUnfolder]: 1343/3790 cut-off events. [2022-11-18 19:59:41,560 INFO L131 PetriNetUnfolder]: For 910/997 co-relation queries the response was YES. [2022-11-18 19:59:41,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6614 conditions, 3790 events. 1343/3790 cut-off events. For 910/997 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27397 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6543. Up to 1852 conditions per place. [2022-11-18 19:59:41,586 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 27 selfloop transitions, 1 changer transitions 0/431 dead transitions. [2022-11-18 19:59:41,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 431 transitions, 957 flow [2022-11-18 19:59:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-18 19:59:41,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-18 19:59:41,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-18 19:59:41,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-18 19:59:41,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:41,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-18 19:59:41,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 19:59:41,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:41,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:41,597 INFO L175 Difference]: Start difference. First operand has 438 places, 432 transitions, 903 flow. Second operand 3 states and 1408 transitions. [2022-11-18 19:59:41,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 431 transitions, 957 flow [2022-11-18 19:59:41,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 431 transitions, 953 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:41,605 INFO L231 Difference]: Finished difference. Result has 437 places, 431 transitions, 899 flow [2022-11-18 19:59:41,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=437, PETRI_TRANSITIONS=431} [2022-11-18 19:59:41,607 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-18 19:59:41,607 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 431 transitions, 899 flow [2022-11-18 19:59:41,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:41,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:41,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:41,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 19:59:41,609 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:41,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1292369557, now seen corresponding path program 1 times [2022-11-18 19:59:41,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:41,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773818960] [2022-11-18 19:59:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:41,683 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 19:59:41,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:41,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773818960] [2022-11-18 19:59:41,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773818960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:41,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:41,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:41,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354334026] [2022-11-18 19:59:41,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:41,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:41,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:41,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:41,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:41,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:41,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 431 transitions, 899 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:41,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:41,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:41,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:42,832 INFO L130 PetriNetUnfolder]: 1343/3789 cut-off events. [2022-11-18 19:59:42,833 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-18 19:59:42,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6613 conditions, 3789 events. 1343/3789 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27446 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6541. Up to 1854 conditions per place. [2022-11-18 19:59:42,857 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/430 dead transitions. [2022-11-18 19:59:42,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 430 transitions, 955 flow [2022-11-18 19:59:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:42,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:42,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:42,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:42,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:42,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:42,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:42,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:42,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:42,866 INFO L175 Difference]: Start difference. First operand has 437 places, 431 transitions, 899 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:42,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 430 transitions, 955 flow [2022-11-18 19:59:42,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 430 transitions, 954 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:59:42,874 INFO L231 Difference]: Finished difference. Result has 437 places, 430 transitions, 900 flow [2022-11-18 19:59:42,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=437, PETRI_TRANSITIONS=430} [2022-11-18 19:59:42,875 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-18 19:59:42,875 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 430 transitions, 900 flow [2022-11-18 19:59:42,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:42,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:42,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:42,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 19:59:42,877 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:42,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:42,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2009647828, now seen corresponding path program 1 times [2022-11-18 19:59:42,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:42,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541936401] [2022-11-18 19:59:42,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:42,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:42,952 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 19:59:42,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:42,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541936401] [2022-11-18 19:59:42,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541936401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:42,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:42,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617986994] [2022-11-18 19:59:42,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:42,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:42,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:42,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:42,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 430 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:42,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:42,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:42,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:44,179 INFO L130 PetriNetUnfolder]: 1343/3788 cut-off events. [2022-11-18 19:59:44,179 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-18 19:59:44,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6614 conditions, 3788 events. 1343/3788 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27405 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6542. Up to 1854 conditions per place. [2022-11-18 19:59:44,200 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/429 dead transitions. [2022-11-18 19:59:44,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 429 transitions, 956 flow [2022-11-18 19:59:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:44,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:44,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:44,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:44,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:44,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:44,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:44,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:44,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:44,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:44,214 INFO L175 Difference]: Start difference. First operand has 437 places, 430 transitions, 900 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:44,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 429 transitions, 956 flow [2022-11-18 19:59:44,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 429 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:44,223 INFO L231 Difference]: Finished difference. Result has 436 places, 429 transitions, 898 flow [2022-11-18 19:59:44,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=436, PETRI_TRANSITIONS=429} [2022-11-18 19:59:44,224 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -164 predicate places. [2022-11-18 19:59:44,224 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 429 transitions, 898 flow [2022-11-18 19:59:44,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:44,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:44,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:44,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 19:59:44,226 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:44,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:44,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2010785939, now seen corresponding path program 1 times [2022-11-18 19:59:44,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:44,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959158856] [2022-11-18 19:59:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:44,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:44,315 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 19:59:44,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:44,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959158856] [2022-11-18 19:59:44,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959158856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:44,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:44,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:44,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575459579] [2022-11-18 19:59:44,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:44,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:59:44,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:44,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:44,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:44,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 19:59:44,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 429 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:44,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:44,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 19:59:44,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:45,828 INFO L130 PetriNetUnfolder]: 1343/3787 cut-off events. [2022-11-18 19:59:45,828 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-18 19:59:45,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6613 conditions, 3787 events. 1343/3787 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27462 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6541. Up to 1854 conditions per place. [2022-11-18 19:59:45,852 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2022-11-18 19:59:45,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 428 transitions, 954 flow [2022-11-18 19:59:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:59:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-18 19:59:45,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-18 19:59:45,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-18 19:59:45,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-18 19:59:45,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:45,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-18 19:59:45,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 19:59:45,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:45,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 19:59:45,861 INFO L175 Difference]: Start difference. First operand has 436 places, 429 transitions, 898 flow. Second operand 3 states and 1409 transitions. [2022-11-18 19:59:45,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 428 transitions, 954 flow [2022-11-18 19:59:45,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 428 transitions, 950 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:45,869 INFO L231 Difference]: Finished difference. Result has 435 places, 428 transitions, 896 flow [2022-11-18 19:59:45,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=435, PETRI_TRANSITIONS=428} [2022-11-18 19:59:45,870 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -165 predicate places. [2022-11-18 19:59:45,870 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 428 transitions, 896 flow [2022-11-18 19:59:45,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 19:59:45,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:45,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:45,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 19:59:45,871 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash -557213020, now seen corresponding path program 1 times [2022-11-18 19:59:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:45,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56551751] [2022-11-18 19:59:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:47,131 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 19:59:47,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:47,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56551751] [2022-11-18 19:59:47,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56551751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:47,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:47,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:59:47,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844902896] [2022-11-18 19:59:47,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:47,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:59:47,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:47,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:59:47,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:59:47,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-18 19:59:47,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 428 transitions, 896 flow. Second operand has 6 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states 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 19:59:47,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:47,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-18 19:59:47,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:53,622 INFO L130 PetriNetUnfolder]: 9455/14668 cut-off events. [2022-11-18 19:59:53,622 INFO L131 PetriNetUnfolder]: For 5163/5163 co-relation queries the response was YES. [2022-11-18 19:59:53,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32476 conditions, 14668 events. 9455/14668 cut-off events. For 5163/5163 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 86926 event pairs, 1407 based on Foata normal form. 0/14195 useless extension candidates. Maximal degree in co-relation 32403. Up to 6008 conditions per place. [2022-11-18 19:59:53,726 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 131 selfloop transitions, 4 changer transitions 0/491 dead transitions. [2022-11-18 19:59:53,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 491 transitions, 1356 flow [2022-11-18 19:59:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:59:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:59:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-18 19:59:53,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6787022501308215 [2022-11-18 19:59:53,732 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-18 19:59:53,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-18 19:59:53,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:53,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-18 19:59:53,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states 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 19:59:53,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 19:59:53,737 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 19:59:53,737 INFO L175 Difference]: Start difference. First operand has 435 places, 428 transitions, 896 flow. Second operand 6 states and 2594 transitions. [2022-11-18 19:59:53,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 491 transitions, 1356 flow [2022-11-18 19:59:53,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 491 transitions, 1352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:59:53,746 INFO L231 Difference]: Finished difference. Result has 437 places, 427 transitions, 898 flow [2022-11-18 19:59:53,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=437, PETRI_TRANSITIONS=427} [2022-11-18 19:59:53,748 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-18 19:59:53,748 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 427 transitions, 898 flow [2022-11-18 19:59:53,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states 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 19:59:53,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:53,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:53,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 19:59:53,749 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 19:59:53,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:53,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2084088737, now seen corresponding path program 1 times [2022-11-18 19:59:53,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:53,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992362851] [2022-11-18 19:59:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:53,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:54,814 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 19:59:54,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:54,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992362851] [2022-11-18 19:59:54,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992362851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:54,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:54,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:59:54,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295416974] [2022-11-18 19:59:54,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:54,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:59:54,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:54,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:59:54,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:59:54,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-18 19:59:54,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 427 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 416.1666666666667) internal successors, (2497), 6 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states 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 19:59:54,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:54,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-18 19:59:54,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:00:02,282 INFO L130 PetriNetUnfolder]: 8454/13480 cut-off events. [2022-11-18 20:00:02,282 INFO L131 PetriNetUnfolder]: For 5063/5063 co-relation queries the response was YES. [2022-11-18 20:00:02,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30515 conditions, 13480 events. 8454/13480 cut-off events. For 5063/5063 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 81443 event pairs, 4677 based on Foata normal form. 0/12921 useless extension candidates. Maximal degree in co-relation 30442. Up to 8251 conditions per place. [2022-11-18 20:00:02,385 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 102 selfloop transitions, 4 changer transitions 0/462 dead transitions. [2022-11-18 20:00:02,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 462 transitions, 1228 flow [2022-11-18 20:00:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:00:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:00:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2569 transitions. [2022-11-18 20:00:02,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6721611721611722 [2022-11-18 20:00:02,392 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2569 transitions. [2022-11-18 20:00:02,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2569 transitions. [2022-11-18 20:00:02,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:00:02,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2569 transitions. [2022-11-18 20:00:02,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 428.1666666666667) internal successors, (2569), 6 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states 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 20:00:02,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 20:00:02,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 20:00:02,405 INFO L175 Difference]: Start difference. First operand has 437 places, 427 transitions, 898 flow. Second operand 6 states and 2569 transitions. [2022-11-18 20:00:02,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 462 transitions, 1228 flow [2022-11-18 20:00:02,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 462 transitions, 1221 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:00:02,416 INFO L231 Difference]: Finished difference. Result has 437 places, 426 transitions, 897 flow [2022-11-18 20:00:02,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=897, PETRI_PLACES=437, PETRI_TRANSITIONS=426} [2022-11-18 20:00:02,417 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-18 20:00:02,417 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 426 transitions, 897 flow [2022-11-18 20:00:02,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 416.1666666666667) internal successors, (2497), 6 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states 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 20:00:02,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:00:02,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:02,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 20:00:02,418 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 20:00:02,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:00:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2050432722, now seen corresponding path program 1 times [2022-11-18 20:00:02,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:00:02,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811267077] [2022-11-18 20:00:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:00:02,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:00:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:03,600 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 20:00:03,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:00:03,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811267077] [2022-11-18 20:00:03,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811267077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:00:03,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:00:03,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:00:03,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643431758] [2022-11-18 20:00:03,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:00:03,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:00:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:00:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:00:03,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:00:03,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-18 20:00:03,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 426 transitions, 897 flow. Second operand has 6 states, 6 states have (on average 417.1666666666667) internal successors, (2503), 6 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states 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 20:00:03,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:00:03,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-18 20:00:03,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:00:10,212 INFO L130 PetriNetUnfolder]: 8273/13343 cut-off events. [2022-11-18 20:00:10,213 INFO L131 PetriNetUnfolder]: For 4506/4506 co-relation queries the response was YES. [2022-11-18 20:00:10,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29557 conditions, 13343 events. 8273/13343 cut-off events. For 4506/4506 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 81226 event pairs, 5439 based on Foata normal form. 0/12830 useless extension candidates. Maximal degree in co-relation 29484. Up to 9740 conditions per place. [2022-11-18 20:00:10,305 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 89 selfloop transitions, 4 changer transitions 0/449 dead transitions. [2022-11-18 20:00:10,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 449 transitions, 1161 flow [2022-11-18 20:00:10,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:00:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:00:10,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2560 transitions. [2022-11-18 20:00:10,310 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6698063840920984 [2022-11-18 20:00:10,310 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2560 transitions. [2022-11-18 20:00:10,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2560 transitions. [2022-11-18 20:00:10,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:00:10,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2560 transitions. [2022-11-18 20:00:10,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 426.6666666666667) internal successors, (2560), 6 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states 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 20:00:10,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 20:00:10,315 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 20:00:10,316 INFO L175 Difference]: Start difference. First operand has 437 places, 426 transitions, 897 flow. Second operand 6 states and 2560 transitions. [2022-11-18 20:00:10,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 449 transitions, 1161 flow [2022-11-18 20:00:10,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 449 transitions, 1154 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:00:10,325 INFO L231 Difference]: Finished difference. Result has 437 places, 425 transitions, 896 flow [2022-11-18 20:00:10,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=896, PETRI_PLACES=437, PETRI_TRANSITIONS=425} [2022-11-18 20:00:10,326 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-18 20:00:10,326 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 425 transitions, 896 flow [2022-11-18 20:00:10,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 417.1666666666667) internal successors, (2503), 6 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states 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 20:00:10,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:00:10,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:10,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 20:00:10,327 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 20:00:10,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:00:10,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1502108119, now seen corresponding path program 1 times [2022-11-18 20:00:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:00:10,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417067978] [2022-11-18 20:00:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:00:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:00:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:11,171 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 20:00:11,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:00:11,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417067978] [2022-11-18 20:00:11,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417067978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:00:11,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:00:11,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:00:11,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122831193] [2022-11-18 20:00:11,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:00:11,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:00:11,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:00:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:00:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:00:11,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-18 20:00:11,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 425 transitions, 896 flow. Second operand has 6 states, 6 states have (on average 418.1666666666667) internal successors, (2509), 6 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states 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 20:00:11,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:00:11,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-18 20:00:11,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:00:17,736 INFO L130 PetriNetUnfolder]: 8324/13406 cut-off events. [2022-11-18 20:00:17,736 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2022-11-18 20:00:17,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29667 conditions, 13406 events. 8324/13406 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 82093 event pairs, 5865 based on Foata normal form. 0/12956 useless extension candidates. Maximal degree in co-relation 29594. Up to 10633 conditions per place. [2022-11-18 20:00:17,830 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 76 selfloop transitions, 4 changer transitions 0/436 dead transitions. [2022-11-18 20:00:17,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 436 transitions, 1094 flow [2022-11-18 20:00:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:00:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:00:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2551 transitions. [2022-11-18 20:00:17,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6674515960230246 [2022-11-18 20:00:17,833 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2551 transitions. [2022-11-18 20:00:17,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2551 transitions. [2022-11-18 20:00:17,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:00:17,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2551 transitions. [2022-11-18 20:00:17,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 425.1666666666667) internal successors, (2551), 6 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states 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 20:00:17,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 20:00:17,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 20:00:17,842 INFO L175 Difference]: Start difference. First operand has 437 places, 425 transitions, 896 flow. Second operand 6 states and 2551 transitions. [2022-11-18 20:00:17,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 436 transitions, 1094 flow [2022-11-18 20:00:17,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 436 transitions, 1087 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:00:17,852 INFO L231 Difference]: Finished difference. Result has 437 places, 424 transitions, 895 flow [2022-11-18 20:00:17,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=895, PETRI_PLACES=437, PETRI_TRANSITIONS=424} [2022-11-18 20:00:17,853 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-18 20:00:17,853 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 424 transitions, 895 flow [2022-11-18 20:00:17,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 418.1666666666667) internal successors, (2509), 6 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states 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 20:00:17,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:00:17,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:17,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-18 20:00:17,855 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-18 20:00:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:00:17,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1291263124, now seen corresponding path program 1 times [2022-11-18 20:00:17,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:00:17,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277815355] [2022-11-18 20:00:17,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:00:17,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:00:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:17,995 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 20:00:17,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:00:17,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277815355] [2022-11-18 20:00:17,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277815355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:00:17,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:00:17,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:00:17,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570855737] [2022-11-18 20:00:17,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:00:17,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:00:17,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:00:17,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:00:17,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:00:17,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-18 20:00:18,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 424 transitions, 895 flow. Second operand has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states 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 20:00:18,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:00:18,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-18 20:00:18,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand