./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:22:58,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:22:58,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:22:58,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:22:58,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:22:58,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:22:58,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:22:58,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:22:58,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:22:58,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:22:58,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:22:58,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:22:58,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:22:58,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:22:58,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:22:58,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:22:58,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:22:58,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:22:58,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:22:58,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:22:58,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:22:58,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:22:58,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:22:58,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:22:58,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:22:58,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:22:58,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:22:58,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:22:58,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:22:58,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:22:58,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:22:58,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:22:58,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:22:58,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:22:58,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:22:58,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:22:58,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:22:58,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:22:58,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:22:58,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:22:58,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:22:58,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:22:58,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:22:58,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:22:58,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:22:58,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:22:58,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:22:58,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:22:58,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:22:58,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:22:58,392 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:22:58,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:22:58,393 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:22:58,393 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:22:58,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:22:58,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:22:58,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:22:58,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:22:58,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:22:58,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:22:58,394 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:22:58,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:22:58,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:22:58,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:22:58,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:22:58,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:22:58,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:22:58,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:22:58,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:22:58,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:22:58,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:22:58,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:22:58,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:22:58,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:22:58,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:22:58,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:22:58,397 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:22:58,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:22:58,398 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2022-11-25 17:22:58,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:22:58,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:22:58,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:22:58,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:22:58,749 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:22:58,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-11-25 17:23:01,844 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:23:02,241 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:23:02,242 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-11-25 17:23:02,264 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/data/6f0d8b487/ecebdf1814cc4b03a3cc5fc09d686004/FLAG828ab1e04 [2022-11-25 17:23:02,282 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/data/6f0d8b487/ecebdf1814cc4b03a3cc5fc09d686004 [2022-11-25 17:23:02,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:23:02,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:23:02,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:23:02,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:23:02,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:23:02,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:23:02" (1/1) ... [2022-11-25 17:23:02,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad51cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:02, skipping insertion in model container [2022-11-25 17:23:02,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:23:02" (1/1) ... [2022-11-25 17:23:02,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:23:02,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:23:03,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:23:03,175 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:23:03,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:23:03,370 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:23:03,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03 WrapperNode [2022-11-25 17:23:03,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:23:03,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:23:03,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:23:03,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:23:03,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,542 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 236 [2022-11-25 17:23:03,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:23:03,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:23:03,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:23:03,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:23:03,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:23:03,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:23:03,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:23:03,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:23:03,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (1/1) ... [2022-11-25 17:23:03,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:23:03,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:23:03,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:23:03,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bff179-6421-4660-ba38-d6568014a496/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:23:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:23:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:23:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:23:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:23:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:23:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:23:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:23:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:23:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:23:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:23:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:23:03,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:23:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:23:03,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:23:03,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:23:03,682 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:23:03,837 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:23:03,839 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:23:04,547 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:23:04,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:23:04,564 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:23:04,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:23:04 BoogieIcfgContainer [2022-11-25 17:23:04,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:23:04,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:23:04,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:23:04,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:23:04,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:23:02" (1/3) ... [2022-11-25 17:23:04,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67824c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:23:04, skipping insertion in model container [2022-11-25 17:23:04,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:03" (2/3) ... [2022-11-25 17:23:04,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67824c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:23:04, skipping insertion in model container [2022-11-25 17:23:04,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:23:04" (3/3) ... [2022-11-25 17:23:04,581 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2022-11-25 17:23:04,590 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:23:04,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:23:04,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-25 17:23:04,601 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:23:04,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:23:04,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 274 transitions, 553 flow [2022-11-25 17:23:05,019 INFO L130 PetriNetUnfolder]: 2/273 cut-off events. [2022-11-25 17:23:05,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:23:05,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 2/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2022-11-25 17:23:05,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 274 transitions, 553 flow [2022-11-25 17:23:05,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 273 transitions, 549 flow [2022-11-25 17:23:05,049 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:23:05,074 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 273 transitions, 549 flow [2022-11-25 17:23:05,078 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 273 transitions, 549 flow [2022-11-25 17:23:05,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 549 flow [2022-11-25 17:23:05,180 INFO L130 PetriNetUnfolder]: 2/273 cut-off events. [2022-11-25 17:23:05,181 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:23:05,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 2/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2022-11-25 17:23:05,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 19488 [2022-11-25 17:23:40,147 WARN L233 SmtUtils]: Spent 15.74s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:23:51,581 WARN L233 SmtUtils]: Spent 11.43s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:02,726 WARN L233 SmtUtils]: Spent 11.14s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:10,903 WARN L233 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:22,615 WARN L233 SmtUtils]: Spent 11.68s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:34,304 WARN L233 SmtUtils]: Spent 11.69s on a formula simplification that was a NOOP. DAG size: 214 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:44,944 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 214 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:44,956 INFO L134 LiptonReduction]: Checked pairs total: 144189 [2022-11-25 17:24:44,957 INFO L136 LiptonReduction]: Total number of compositions: 163 [2022-11-25 17:24:44,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:24:44,976 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;@5472a602, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:24:44,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-25 17:24:44,978 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:24:44,978 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:44,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:44,979 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:24:44,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:24:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash 840, now seen corresponding path program 1 times [2022-11-25 17:24:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:44,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250073780] [2022-11-25 17:24:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:45,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:45,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250073780] [2022-11-25 17:24:45,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250073780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:45,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:45,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:24:45,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011226736] [2022-11-25 17:24:45,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:45,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:24:45,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:45,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:24:45,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:24:45,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 437 [2022-11-25 17:24:45,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 130 transitions, 263 flow. Second operand has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:45,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:45,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 437 [2022-11-25 17:24:45,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:45,599 INFO L130 PetriNetUnfolder]: 341/1603 cut-off events. [2022-11-25 17:24:45,599 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:45,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 1603 events. 341/1603 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10561 event pairs, 323 based on Foata normal form. 18/1560 useless extension candidates. Maximal degree in co-relation 2301. Up to 703 conditions per place. [2022-11-25 17:24:45,612 INFO L137 encePairwiseOnDemand]: 432/437 looper letters, 39 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2022-11-25 17:24:45,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 125 transitions, 331 flow [2022-11-25 17:24:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:24:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:24:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 588 transitions. [2022-11-25 17:24:45,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6727688787185355 [2022-11-25 17:24:45,639 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 588 transitions. [2022-11-25 17:24:45,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 588 transitions. [2022-11-25 17:24:45,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:45,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 588 transitions. [2022-11-25 17:24:45,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 294.0) internal successors, (588), 2 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:45,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:45,661 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:45,663 INFO L175 Difference]: Start difference. First operand has 132 places, 130 transitions, 263 flow. Second operand 2 states and 588 transitions. [2022-11-25 17:24:45,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 125 transitions, 331 flow [2022-11-25 17:24:45,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 125 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:24:45,671 INFO L231 Difference]: Finished difference. Result has 128 places, 125 transitions, 252 flow [2022-11-25 17:24:45,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=252, PETRI_PLACES=128, PETRI_TRANSITIONS=125} [2022-11-25 17:24:45,677 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -4 predicate places. [2022-11-25 17:24:45,678 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 252 flow [2022-11-25 17:24:45,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:45,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:45,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:45,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:24:45,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:24:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash -463440035, now seen corresponding path program 1 times [2022-11-25 17:24:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:45,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076317772] [2022-11-25 17:24:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:45,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:46,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:46,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076317772] [2022-11-25 17:24:46,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076317772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:46,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:46,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:24:46,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075764345] [2022-11-25 17:24:46,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:46,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:24:46,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:24:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:24:47,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 437 [2022-11-25 17:24:47,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:47,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:47,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 437 [2022-11-25 17:24:47,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:48,678 INFO L130 PetriNetUnfolder]: 2296/5316 cut-off events. [2022-11-25 17:24:48,679 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:48,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9968 conditions, 5316 events. 2296/5316 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 32189 event pairs, 1902 based on Foata normal form. 0/5187 useless extension candidates. Maximal degree in co-relation 9965. Up to 4420 conditions per place. [2022-11-25 17:24:48,706 INFO L137 encePairwiseOnDemand]: 403/437 looper letters, 150 selfloop transitions, 117 changer transitions 0/297 dead transitions. [2022-11-25 17:24:48,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 297 transitions, 1130 flow [2022-11-25 17:24:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:24:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:24:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1396 transitions. [2022-11-25 17:24:48,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.532418001525553 [2022-11-25 17:24:48,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1396 transitions. [2022-11-25 17:24:48,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1396 transitions. [2022-11-25 17:24:48,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:48,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1396 transitions. [2022-11-25 17:24:48,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,725 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,725 INFO L175 Difference]: Start difference. First operand has 128 places, 125 transitions, 252 flow. Second operand 6 states and 1396 transitions. [2022-11-25 17:24:48,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 297 transitions, 1130 flow [2022-11-25 17:24:48,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 297 transitions, 1130 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:24:48,734 INFO L231 Difference]: Finished difference. Result has 137 places, 241 transitions, 904 flow [2022-11-25 17:24:48,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=904, PETRI_PLACES=137, PETRI_TRANSITIONS=241} [2022-11-25 17:24:48,735 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 5 predicate places. [2022-11-25 17:24:48,736 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 241 transitions, 904 flow [2022-11-25 17:24:48,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:48,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:48,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:24:48,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:24:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash -468855551, now seen corresponding path program 1 times [2022-11-25 17:24:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:48,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262578216] [2022-11-25 17:24:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:48,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:49,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:49,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262578216] [2022-11-25 17:24:49,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262578216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:49,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:49,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:24:49,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515400008] [2022-11-25 17:24:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:49,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:24:49,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:49,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:24:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:24:49,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 437 [2022-11-25 17:24:49,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 241 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:49,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:49,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 437 [2022-11-25 17:24:49,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:51,786 INFO L130 PetriNetUnfolder]: 2449/5653 cut-off events. [2022-11-25 17:24:51,786 INFO L131 PetriNetUnfolder]: For 1076/1097 co-relation queries the response was YES. [2022-11-25 17:24:51,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12861 conditions, 5653 events. 2449/5653 cut-off events. For 1076/1097 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 34678 event pairs, 1706 based on Foata normal form. 0/5509 useless extension candidates. Maximal degree in co-relation 12853. Up to 4640 conditions per place. [2022-11-25 17:24:51,832 INFO L137 encePairwiseOnDemand]: 395/437 looper letters, 257 selfloop transitions, 153 changer transitions 0/457 dead transitions. [2022-11-25 17:24:51,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 457 transitions, 2206 flow [2022-11-25 17:24:51,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:24:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:24:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1451 transitions. [2022-11-25 17:24:51,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5533943554538521 [2022-11-25 17:24:51,849 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1451 transitions. [2022-11-25 17:24:51,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1451 transitions. [2022-11-25 17:24:51,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:51,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1451 transitions. [2022-11-25 17:24:51,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:51,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:51,867 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:51,868 INFO L175 Difference]: Start difference. First operand has 137 places, 241 transitions, 904 flow. Second operand 6 states and 1451 transitions. [2022-11-25 17:24:51,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 457 transitions, 2206 flow [2022-11-25 17:24:51,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 457 transitions, 2206 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:24:51,899 INFO L231 Difference]: Finished difference. Result has 146 places, 389 transitions, 1786 flow [2022-11-25 17:24:51,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1786, PETRI_PLACES=146, PETRI_TRANSITIONS=389} [2022-11-25 17:24:51,901 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 14 predicate places. [2022-11-25 17:24:51,901 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 389 transitions, 1786 flow [2022-11-25 17:24:51,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:51,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:51,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:51,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:24:51,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:24:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:51,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1866451165, now seen corresponding path program 1 times [2022-11-25 17:24:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:51,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992282850] [2022-11-25 17:24:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:52,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:52,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992282850] [2022-11-25 17:24:52,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992282850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:52,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:52,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:24:52,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991471885] [2022-11-25 17:24:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:52,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:24:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:52,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:24:52,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:24:53,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:24:53,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 389 transitions, 1786 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:53,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:53,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:24:53,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:57,222 INFO L130 PetriNetUnfolder]: 5012/11729 cut-off events. [2022-11-25 17:24:57,223 INFO L131 PetriNetUnfolder]: For 5155/5216 co-relation queries the response was YES. [2022-11-25 17:24:57,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31821 conditions, 11729 events. 5012/11729 cut-off events. For 5155/5216 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 86903 event pairs, 1715 based on Foata normal form. 11/11468 useless extension candidates. Maximal degree in co-relation 31808. Up to 4881 conditions per place. [2022-11-25 17:24:57,321 INFO L137 encePairwiseOnDemand]: 407/437 looper letters, 787 selfloop transitions, 114 changer transitions 4/947 dead transitions. [2022-11-25 17:24:57,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 947 transitions, 6139 flow [2022-11-25 17:24:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:24:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 17:24:57,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2104 transitions. [2022-11-25 17:24:57,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5349605898804983 [2022-11-25 17:24:57,328 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2104 transitions. [2022-11-25 17:24:57,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2104 transitions. [2022-11-25 17:24:57,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:57,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2104 transitions. [2022-11-25 17:24:57,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 233.77777777777777) internal successors, (2104), 9 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,346 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,346 INFO L175 Difference]: Start difference. First operand has 146 places, 389 transitions, 1786 flow. Second operand 9 states and 2104 transitions. [2022-11-25 17:24:57,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 947 transitions, 6139 flow [2022-11-25 17:24:57,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 947 transitions, 6019 flow, removed 60 selfloop flow, removed 0 redundant places. [2022-11-25 17:24:57,399 INFO L231 Difference]: Finished difference. Result has 160 places, 501 transitions, 2999 flow [2022-11-25 17:24:57,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=1756, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2999, PETRI_PLACES=160, PETRI_TRANSITIONS=501} [2022-11-25 17:24:57,401 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 28 predicate places. [2022-11-25 17:24:57,401 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 501 transitions, 2999 flow [2022-11-25 17:24:57,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:57,402 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:57,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:24:57,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:24:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1986011253, now seen corresponding path program 2 times [2022-11-25 17:24:57,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:57,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927514571] [2022-11-25 17:24:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:57,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:58,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:58,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927514571] [2022-11-25 17:24:58,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927514571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:58,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:58,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:24:58,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476159942] [2022-11-25 17:24:58,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:58,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:24:58,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:58,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:24:58,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:24:59,180 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:24:59,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 501 transitions, 2999 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:59,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:59,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:24:59,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:02,934 INFO L130 PetriNetUnfolder]: 5026/11590 cut-off events. [2022-11-25 17:25:02,935 INFO L131 PetriNetUnfolder]: For 8030/8117 co-relation queries the response was YES. [2022-11-25 17:25:02,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33514 conditions, 11590 events. 5026/11590 cut-off events. For 8030/8117 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 84091 event pairs, 3372 based on Foata normal form. 32/11349 useless extension candidates. Maximal degree in co-relation 33494. Up to 9452 conditions per place. [2022-11-25 17:25:03,024 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 357 selfloop transitions, 217 changer transitions 2/618 dead transitions. [2022-11-25 17:25:03,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 618 transitions, 4547 flow [2022-11-25 17:25:03,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:25:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:25:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1805 transitions. [2022-11-25 17:25:03,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5163043478260869 [2022-11-25 17:25:03,030 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1805 transitions. [2022-11-25 17:25:03,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1805 transitions. [2022-11-25 17:25:03,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:03,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1805 transitions. [2022-11-25 17:25:03,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.625) internal successors, (1805), 8 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,043 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,043 INFO L175 Difference]: Start difference. First operand has 160 places, 501 transitions, 2999 flow. Second operand 8 states and 1805 transitions. [2022-11-25 17:25:03,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 618 transitions, 4547 flow [2022-11-25 17:25:03,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 618 transitions, 4545 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:03,104 INFO L231 Difference]: Finished difference. Result has 168 places, 506 transitions, 3537 flow [2022-11-25 17:25:03,105 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=2997, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3537, PETRI_PLACES=168, PETRI_TRANSITIONS=506} [2022-11-25 17:25:03,106 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 36 predicate places. [2022-11-25 17:25:03,106 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 506 transitions, 3537 flow [2022-11-25 17:25:03,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:03,107 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:03,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:25:03,108 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:03,108 INFO L85 PathProgramCache]: Analyzing trace with hash -938925746, now seen corresponding path program 1 times [2022-11-25 17:25:03,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:03,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027919078] [2022-11-25 17:25:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:03,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:03,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:03,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027919078] [2022-11-25 17:25:03,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027919078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:03,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:03,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:03,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193577916] [2022-11-25 17:25:03,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:03,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:03,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:03,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:03,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:04,785 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:04,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 506 transitions, 3537 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:04,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:04,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:04,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:08,653 INFO L130 PetriNetUnfolder]: 4856/11386 cut-off events. [2022-11-25 17:25:08,653 INFO L131 PetriNetUnfolder]: For 11450/11638 co-relation queries the response was YES. [2022-11-25 17:25:08,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33907 conditions, 11386 events. 4856/11386 cut-off events. For 11450/11638 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 84842 event pairs, 1553 based on Foata normal form. 14/11118 useless extension candidates. Maximal degree in co-relation 33885. Up to 4745 conditions per place. [2022-11-25 17:25:08,730 INFO L137 encePairwiseOnDemand]: 398/437 looper letters, 765 selfloop transitions, 163 changer transitions 4/979 dead transitions. [2022-11-25 17:25:08,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 979 transitions, 7745 flow [2022-11-25 17:25:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:25:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:25:08,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3075 transitions. [2022-11-25 17:25:08,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5026152337365152 [2022-11-25 17:25:08,739 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3075 transitions. [2022-11-25 17:25:08,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3075 transitions. [2022-11-25 17:25:08,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:08,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3075 transitions. [2022-11-25 17:25:08,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 219.64285714285714) internal successors, (3075), 14 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:08,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 437.0) internal successors, (6555), 15 states have internal predecessors, (6555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:08,759 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 437.0) internal successors, (6555), 15 states have internal predecessors, (6555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:08,759 INFO L175 Difference]: Start difference. First operand has 168 places, 506 transitions, 3537 flow. Second operand 14 states and 3075 transitions. [2022-11-25 17:25:08,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 979 transitions, 7745 flow [2022-11-25 17:25:08,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 979 transitions, 7276 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-11-25 17:25:08,836 INFO L231 Difference]: Finished difference. Result has 186 places, 664 transitions, 4903 flow [2022-11-25 17:25:08,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=3148, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=506, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4903, PETRI_PLACES=186, PETRI_TRANSITIONS=664} [2022-11-25 17:25:08,840 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 54 predicate places. [2022-11-25 17:25:08,840 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 664 transitions, 4903 flow [2022-11-25 17:25:08,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:08,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:08,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:08,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:25:08,843 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2036426053, now seen corresponding path program 3 times [2022-11-25 17:25:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:08,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345939236] [2022-11-25 17:25:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:08,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:09,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:09,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345939236] [2022-11-25 17:25:09,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345939236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:09,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:09,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535798136] [2022-11-25 17:25:09,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:09,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:09,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:09,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:10,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:10,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 664 transitions, 4903 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:10,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:10,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:10,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:14,048 INFO L130 PetriNetUnfolder]: 5059/11651 cut-off events. [2022-11-25 17:25:14,049 INFO L131 PetriNetUnfolder]: For 13345/13465 co-relation queries the response was YES. [2022-11-25 17:25:14,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36697 conditions, 11651 events. 5059/11651 cut-off events. For 13345/13465 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 84459 event pairs, 3283 based on Foata normal form. 36/11414 useless extension candidates. Maximal degree in co-relation 36665. Up to 9473 conditions per place. [2022-11-25 17:25:14,138 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 514 selfloop transitions, 249 changer transitions 2/807 dead transitions. [2022-11-25 17:25:14,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 807 transitions, 7100 flow [2022-11-25 17:25:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:25:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 17:25:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2005 transitions. [2022-11-25 17:25:14,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5097889651665395 [2022-11-25 17:25:14,145 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2005 transitions. [2022-11-25 17:25:14,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2005 transitions. [2022-11-25 17:25:14,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:14,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2005 transitions. [2022-11-25 17:25:14,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 222.77777777777777) internal successors, (2005), 9 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,159 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,159 INFO L175 Difference]: Start difference. First operand has 186 places, 664 transitions, 4903 flow. Second operand 9 states and 2005 transitions. [2022-11-25 17:25:14,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 807 transitions, 7100 flow [2022-11-25 17:25:14,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 807 transitions, 7086 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:14,299 INFO L231 Difference]: Finished difference. Result has 197 places, 677 transitions, 5676 flow [2022-11-25 17:25:14,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=4892, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5676, PETRI_PLACES=197, PETRI_TRANSITIONS=677} [2022-11-25 17:25:14,300 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 65 predicate places. [2022-11-25 17:25:14,301 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 677 transitions, 5676 flow [2022-11-25 17:25:14,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:14,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:14,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:25:14,318 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash -191846819, now seen corresponding path program 4 times [2022-11-25 17:25:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:14,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613455919] [2022-11-25 17:25:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:14,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:14,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613455919] [2022-11-25 17:25:14,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613455919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:14,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:14,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510027384] [2022-11-25 17:25:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:14,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:14,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:14,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:14,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:15,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:15,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 677 transitions, 5676 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:15,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:15,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:15,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:19,532 INFO L130 PetriNetUnfolder]: 5042/11646 cut-off events. [2022-11-25 17:25:19,532 INFO L131 PetriNetUnfolder]: For 17649/17745 co-relation queries the response was YES. [2022-11-25 17:25:19,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38295 conditions, 11646 events. 5042/11646 cut-off events. For 17649/17745 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 86492 event pairs, 1309 based on Foata normal form. 16/11396 useless extension candidates. Maximal degree in co-relation 38258. Up to 5148 conditions per place. [2022-11-25 17:25:19,633 INFO L137 encePairwiseOnDemand]: 408/437 looper letters, 870 selfloop transitions, 125 changer transitions 4/1041 dead transitions. [2022-11-25 17:25:19,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 1041 transitions, 9467 flow [2022-11-25 17:25:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:25:19,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 17:25:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2152 transitions. [2022-11-25 17:25:19,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.547165013984236 [2022-11-25 17:25:19,641 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2152 transitions. [2022-11-25 17:25:19,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2152 transitions. [2022-11-25 17:25:19,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:19,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2152 transitions. [2022-11-25 17:25:19,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 239.11111111111111) internal successors, (2152), 9 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:19,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:19,655 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:19,655 INFO L175 Difference]: Start difference. First operand has 197 places, 677 transitions, 5676 flow. Second operand 9 states and 2152 transitions. [2022-11-25 17:25:19,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 1041 transitions, 9467 flow [2022-11-25 17:25:19,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 1041 transitions, 9032 flow, removed 18 selfloop flow, removed 4 redundant places. [2022-11-25 17:25:19,858 INFO L231 Difference]: Finished difference. Result has 206 places, 703 transitions, 6064 flow [2022-11-25 17:25:19,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=5277, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6064, PETRI_PLACES=206, PETRI_TRANSITIONS=703} [2022-11-25 17:25:19,863 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 74 predicate places. [2022-11-25 17:25:19,863 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 703 transitions, 6064 flow [2022-11-25 17:25:19,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:19,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:19,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:19,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:25:19,864 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:19,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1425588405, now seen corresponding path program 5 times [2022-11-25 17:25:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:19,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637682022] [2022-11-25 17:25:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:19,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:20,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:20,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637682022] [2022-11-25 17:25:20,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637682022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:20,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:20,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816141412] [2022-11-25 17:25:20,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:20,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:20,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:20,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:21,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:21,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 703 transitions, 6064 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:21,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:21,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:21,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:25,171 INFO L130 PetriNetUnfolder]: 5092/11776 cut-off events. [2022-11-25 17:25:25,171 INFO L131 PetriNetUnfolder]: For 23787/23898 co-relation queries the response was YES. [2022-11-25 17:25:25,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39939 conditions, 11776 events. 5092/11776 cut-off events. For 23787/23898 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 85782 event pairs, 3277 based on Foata normal form. 28/11547 useless extension candidates. Maximal degree in co-relation 39897. Up to 9462 conditions per place. [2022-11-25 17:25:25,285 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 540 selfloop transitions, 261 changer transitions 2/845 dead transitions. [2022-11-25 17:25:25,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 845 transitions, 8565 flow [2022-11-25 17:25:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:25:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:25:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1753 transitions. [2022-11-25 17:25:25,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5014302059496567 [2022-11-25 17:25:25,291 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1753 transitions. [2022-11-25 17:25:25,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1753 transitions. [2022-11-25 17:25:25,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:25,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1753 transitions. [2022-11-25 17:25:25,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 219.125) internal successors, (1753), 8 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:25,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:25,303 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:25,303 INFO L175 Difference]: Start difference. First operand has 206 places, 703 transitions, 6064 flow. Second operand 8 states and 1753 transitions. [2022-11-25 17:25:25,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 845 transitions, 8565 flow [2022-11-25 17:25:25,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 845 transitions, 8242 flow, removed 148 selfloop flow, removed 2 redundant places. [2022-11-25 17:25:25,556 INFO L231 Difference]: Finished difference. Result has 215 places, 725 transitions, 6824 flow [2022-11-25 17:25:25,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=5755, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6824, PETRI_PLACES=215, PETRI_TRANSITIONS=725} [2022-11-25 17:25:25,558 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 83 predicate places. [2022-11-25 17:25:25,558 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 725 transitions, 6824 flow [2022-11-25 17:25:25,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:25,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:25,559 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:25,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:25:25,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:25,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:25,560 INFO L85 PathProgramCache]: Analyzing trace with hash -478260485, now seen corresponding path program 6 times [2022-11-25 17:25:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:25,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984247899] [2022-11-25 17:25:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:25,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:25,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984247899] [2022-11-25 17:25:25,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984247899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:25,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:25,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:25,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117694985] [2022-11-25 17:25:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:25,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:25,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:27,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:27,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 725 transitions, 6824 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:27,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:27,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:27,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:30,255 INFO L130 PetriNetUnfolder]: 5076/11742 cut-off events. [2022-11-25 17:25:30,255 INFO L131 PetriNetUnfolder]: For 24265/24375 co-relation queries the response was YES. [2022-11-25 17:25:30,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40427 conditions, 11742 events. 5076/11742 cut-off events. For 24265/24375 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 85487 event pairs, 3268 based on Foata normal form. 22/11522 useless extension candidates. Maximal degree in co-relation 40381. Up to 9326 conditions per place. [2022-11-25 17:25:30,369 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 548 selfloop transitions, 271 changer transitions 2/863 dead transitions. [2022-11-25 17:25:30,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 863 transitions, 9387 flow [2022-11-25 17:25:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:25:30,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:25:30,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1727 transitions. [2022-11-25 17:25:30,375 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49399313501144165 [2022-11-25 17:25:30,375 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1727 transitions. [2022-11-25 17:25:30,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1727 transitions. [2022-11-25 17:25:30,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:30,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1727 transitions. [2022-11-25 17:25:30,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 215.875) internal successors, (1727), 8 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:30,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:30,386 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:30,386 INFO L175 Difference]: Start difference. First operand has 215 places, 725 transitions, 6824 flow. Second operand 8 states and 1727 transitions. [2022-11-25 17:25:30,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 863 transitions, 9387 flow [2022-11-25 17:25:30,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 863 transitions, 9174 flow, removed 72 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:30,606 INFO L231 Difference]: Finished difference. Result has 226 places, 742 transitions, 7758 flow [2022-11-25 17:25:30,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=6613, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7758, PETRI_PLACES=226, PETRI_TRANSITIONS=742} [2022-11-25 17:25:30,607 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 94 predicate places. [2022-11-25 17:25:30,607 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 742 transitions, 7758 flow [2022-11-25 17:25:30,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:30,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:30,608 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:30,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:25:30,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:30,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:30,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1280898540, now seen corresponding path program 2 times [2022-11-25 17:25:30,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:30,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861185549] [2022-11-25 17:25:30,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:30,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:30,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:30,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861185549] [2022-11-25 17:25:30,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861185549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:30,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:30,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:30,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458706882] [2022-11-25 17:25:30,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:30,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:30,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:30,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:30,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:31,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:31,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 742 transitions, 7758 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:31,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:31,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:31,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:35,569 INFO L130 PetriNetUnfolder]: 4979/11531 cut-off events. [2022-11-25 17:25:35,569 INFO L131 PetriNetUnfolder]: For 30095/30249 co-relation queries the response was YES. [2022-11-25 17:25:35,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41207 conditions, 11531 events. 4979/11531 cut-off events. For 30095/30249 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 85089 event pairs, 1626 based on Foata normal form. 37/11296 useless extension candidates. Maximal degree in co-relation 41155. Up to 4994 conditions per place. [2022-11-25 17:25:35,686 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 890 selfloop transitions, 167 changer transitions 4/1108 dead transitions. [2022-11-25 17:25:35,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 1108 transitions, 11790 flow [2022-11-25 17:25:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:25:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 17:25:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2935 transitions. [2022-11-25 17:25:35,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5166343953529309 [2022-11-25 17:25:35,696 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2935 transitions. [2022-11-25 17:25:35,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2935 transitions. [2022-11-25 17:25:35,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:35,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2935 transitions. [2022-11-25 17:25:35,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 225.76923076923077) internal successors, (2935), 13 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:35,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 437.0) internal successors, (6118), 14 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:35,713 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 437.0) internal successors, (6118), 14 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:35,713 INFO L175 Difference]: Start difference. First operand has 226 places, 742 transitions, 7758 flow. Second operand 13 states and 2935 transitions. [2022-11-25 17:25:35,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 1108 transitions, 11790 flow [2022-11-25 17:25:35,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 1108 transitions, 11580 flow, removed 99 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:35,918 INFO L231 Difference]: Finished difference. Result has 245 places, 777 transitions, 8487 flow [2022-11-25 17:25:35,919 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=7554, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8487, PETRI_PLACES=245, PETRI_TRANSITIONS=777} [2022-11-25 17:25:35,919 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 113 predicate places. [2022-11-25 17:25:35,919 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 777 transitions, 8487 flow [2022-11-25 17:25:35,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:35,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:35,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:35,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:25:35,920 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:35,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash 611013198, now seen corresponding path program 3 times [2022-11-25 17:25:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:35,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917499769] [2022-11-25 17:25:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:36,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:36,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917499769] [2022-11-25 17:25:36,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917499769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:36,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:36,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906441352] [2022-11-25 17:25:36,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:36,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:36,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:37,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:37,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 777 transitions, 8487 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:37,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:37,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:37,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:41,214 INFO L130 PetriNetUnfolder]: 5072/11727 cut-off events. [2022-11-25 17:25:41,214 INFO L131 PetriNetUnfolder]: For 32549/32684 co-relation queries the response was YES. [2022-11-25 17:25:41,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43425 conditions, 11727 events. 5072/11727 cut-off events. For 32549/32684 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 85533 event pairs, 3163 based on Foata normal form. 26/11469 useless extension candidates. Maximal degree in co-relation 43365. Up to 9253 conditions per place. [2022-11-25 17:25:41,367 INFO L137 encePairwiseOnDemand]: 392/437 looper letters, 563 selfloop transitions, 363 changer transitions 2/975 dead transitions. [2022-11-25 17:25:41,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 975 transitions, 11596 flow [2022-11-25 17:25:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:25:41,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:25:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1821 transitions. [2022-11-25 17:25:41,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5208810068649885 [2022-11-25 17:25:41,372 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1821 transitions. [2022-11-25 17:25:41,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1821 transitions. [2022-11-25 17:25:41,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:41,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1821 transitions. [2022-11-25 17:25:41,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 227.625) internal successors, (1821), 8 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:41,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:41,383 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:41,383 INFO L175 Difference]: Start difference. First operand has 245 places, 777 transitions, 8487 flow. Second operand 8 states and 1821 transitions. [2022-11-25 17:25:41,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 975 transitions, 11596 flow [2022-11-25 17:25:41,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 975 transitions, 11283 flow, removed 155 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:41,651 INFO L231 Difference]: Finished difference. Result has 255 places, 799 transitions, 9495 flow [2022-11-25 17:25:41,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=8174, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=777, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9495, PETRI_PLACES=255, PETRI_TRANSITIONS=799} [2022-11-25 17:25:41,652 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 123 predicate places. [2022-11-25 17:25:41,653 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 799 transitions, 9495 flow [2022-11-25 17:25:41,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:41,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:41,654 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:41,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:25:41,654 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash 408276918, now seen corresponding path program 4 times [2022-11-25 17:25:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:41,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074416375] [2022-11-25 17:25:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:41,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:42,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:42,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074416375] [2022-11-25 17:25:42,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074416375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:42,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:42,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522743405] [2022-11-25 17:25:42,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:42,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:42,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:42,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:42,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:43,213 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:43,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 799 transitions, 9495 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:43,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:43,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:43,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:46,960 INFO L130 PetriNetUnfolder]: 5056/11889 cut-off events. [2022-11-25 17:25:46,961 INFO L131 PetriNetUnfolder]: For 35568/35690 co-relation queries the response was YES. [2022-11-25 17:25:47,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44850 conditions, 11889 events. 5056/11889 cut-off events. For 35568/35690 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 89305 event pairs, 1668 based on Foata normal form. 30/11730 useless extension candidates. Maximal degree in co-relation 44786. Up to 9324 conditions per place. [2022-11-25 17:25:47,110 INFO L137 encePairwiseOnDemand]: 392/437 looper letters, 583 selfloop transitions, 369 changer transitions 2/1001 dead transitions. [2022-11-25 17:25:47,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 1001 transitions, 12467 flow [2022-11-25 17:25:47,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:25:47,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 17:25:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2467 transitions. [2022-11-25 17:25:47,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5132099022259206 [2022-11-25 17:25:47,115 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2467 transitions. [2022-11-25 17:25:47,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2467 transitions. [2022-11-25 17:25:47,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:47,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2467 transitions. [2022-11-25 17:25:47,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 224.27272727272728) internal successors, (2467), 11 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:47,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 437.0) internal successors, (5244), 12 states have internal predecessors, (5244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:47,129 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 437.0) internal successors, (5244), 12 states have internal predecessors, (5244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:47,129 INFO L175 Difference]: Start difference. First operand has 255 places, 799 transitions, 9495 flow. Second operand 11 states and 2467 transitions. [2022-11-25 17:25:47,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 1001 transitions, 12467 flow [2022-11-25 17:25:47,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 1001 transitions, 12246 flow, removed 46 selfloop flow, removed 5 redundant places. [2022-11-25 17:25:47,578 INFO L231 Difference]: Finished difference. Result has 266 places, 813 transitions, 10434 flow [2022-11-25 17:25:47,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=9280, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10434, PETRI_PLACES=266, PETRI_TRANSITIONS=813} [2022-11-25 17:25:47,579 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 134 predicate places. [2022-11-25 17:25:47,580 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 813 transitions, 10434 flow [2022-11-25 17:25:47,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:47,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:47,580 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:47,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:25:47,581 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:47,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:47,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1520774474, now seen corresponding path program 5 times [2022-11-25 17:25:47,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:47,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056887590] [2022-11-25 17:25:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:47,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:47,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:47,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056887590] [2022-11-25 17:25:47,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056887590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:47,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:47,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:25:47,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621467672] [2022-11-25 17:25:47,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:47,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:25:47,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:47,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:25:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:25:48,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:25:48,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 813 transitions, 10434 flow. Second operand has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:48,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:48,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:25:48,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:52,481 INFO L130 PetriNetUnfolder]: 5040/11665 cut-off events. [2022-11-25 17:25:52,481 INFO L131 PetriNetUnfolder]: For 37270/37404 co-relation queries the response was YES. [2022-11-25 17:25:52,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45640 conditions, 11665 events. 5040/11665 cut-off events. For 37270/37404 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 85027 event pairs, 3115 based on Foata normal form. 42/11533 useless extension candidates. Maximal degree in co-relation 45573. Up to 9116 conditions per place. [2022-11-25 17:25:52,641 INFO L137 encePairwiseOnDemand]: 392/437 looper letters, 582 selfloop transitions, 415 changer transitions 2/1046 dead transitions. [2022-11-25 17:25:52,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1046 transitions, 13769 flow [2022-11-25 17:25:52,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:25:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 17:25:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3237 transitions. [2022-11-25 17:25:52,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49382151029748284 [2022-11-25 17:25:52,646 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3237 transitions. [2022-11-25 17:25:52,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3237 transitions. [2022-11-25 17:25:52,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:52,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3237 transitions. [2022-11-25 17:25:52,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.8) internal successors, (3237), 15 states have internal predecessors, (3237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:52,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 437.0) internal successors, (6992), 16 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:52,660 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 437.0) internal successors, (6992), 16 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:52,661 INFO L175 Difference]: Start difference. First operand has 266 places, 813 transitions, 10434 flow. Second operand 15 states and 3237 transitions. [2022-11-25 17:25:52,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1046 transitions, 13769 flow [2022-11-25 17:25:53,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 1046 transitions, 13490 flow, removed 30 selfloop flow, removed 7 redundant places. [2022-11-25 17:25:53,032 INFO L231 Difference]: Finished difference. Result has 281 places, 828 transitions, 11672 flow [2022-11-25 17:25:53,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=10168, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=401, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11672, PETRI_PLACES=281, PETRI_TRANSITIONS=828} [2022-11-25 17:25:53,034 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 149 predicate places. [2022-11-25 17:25:53,034 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 828 transitions, 11672 flow [2022-11-25 17:25:53,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.22222222222223) internal successors, (1676), 9 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:53,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:53,035 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:53,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:25:53,035 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:53,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2106054471, now seen corresponding path program 1 times [2022-11-25 17:25:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:53,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565290465] [2022-11-25 17:25:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:53,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:53,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565290465] [2022-11-25 17:25:53,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565290465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:53,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:53,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:25:53,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664262540] [2022-11-25 17:25:53,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:53,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:25:53,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:53,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:25:53,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:25:53,822 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 437 [2022-11-25 17:25:53,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 828 transitions, 11672 flow. Second operand has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:53,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:53,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 437 [2022-11-25 17:25:53,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:57,094 INFO L130 PetriNetUnfolder]: 5601/13016 cut-off events. [2022-11-25 17:25:57,094 INFO L131 PetriNetUnfolder]: For 45978/46256 co-relation queries the response was YES. [2022-11-25 17:25:57,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50695 conditions, 13016 events. 5601/13016 cut-off events. For 45978/46256 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 96650 event pairs, 3291 based on Foata normal form. 12/12725 useless extension candidates. Maximal degree in co-relation 50624. Up to 10514 conditions per place. [2022-11-25 17:25:57,285 INFO L137 encePairwiseOnDemand]: 403/437 looper letters, 790 selfloop transitions, 161 changer transitions 0/1056 dead transitions. [2022-11-25 17:25:57,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 1056 transitions, 15180 flow [2022-11-25 17:25:57,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:25:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:25:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1396 transitions. [2022-11-25 17:25:57,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.532418001525553 [2022-11-25 17:25:57,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1396 transitions. [2022-11-25 17:25:57,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1396 transitions. [2022-11-25 17:25:57,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:57,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1396 transitions. [2022-11-25 17:25:57,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:57,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:57,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:57,294 INFO L175 Difference]: Start difference. First operand has 281 places, 828 transitions, 11672 flow. Second operand 6 states and 1396 transitions. [2022-11-25 17:25:57,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 1056 transitions, 15180 flow [2022-11-25 17:25:57,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1056 transitions, 14941 flow, removed 86 selfloop flow, removed 6 redundant places. [2022-11-25 17:25:57,932 INFO L231 Difference]: Finished difference. Result has 284 places, 984 transitions, 13239 flow [2022-11-25 17:25:57,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=11509, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=828, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=781, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13239, PETRI_PLACES=284, PETRI_TRANSITIONS=984} [2022-11-25 17:25:57,943 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 152 predicate places. [2022-11-25 17:25:57,943 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 984 transitions, 13239 flow [2022-11-25 17:25:57,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:57,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:57,944 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:57,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:25:57,944 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:25:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:57,944 INFO L85 PathProgramCache]: Analyzing trace with hash 793475718, now seen corresponding path program 1 times [2022-11-25 17:25:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:57,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126164658] [2022-11-25 17:25:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:58,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126164658] [2022-11-25 17:25:58,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126164658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:58,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:58,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:25:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675295358] [2022-11-25 17:25:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:58,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:25:58,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:25:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:25:58,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 437 [2022-11-25 17:25:58,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 984 transitions, 13239 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:58,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:58,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 437 [2022-11-25 17:25:58,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:26:03,325 INFO L130 PetriNetUnfolder]: 6068/14018 cut-off events. [2022-11-25 17:26:03,326 INFO L131 PetriNetUnfolder]: For 49162/49454 co-relation queries the response was YES. [2022-11-25 17:26:03,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57534 conditions, 14018 events. 6068/14018 cut-off events. For 49162/49454 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 105521 event pairs, 3051 based on Foata normal form. 8/13693 useless extension candidates. Maximal degree in co-relation 57460. Up to 11151 conditions per place. [2022-11-25 17:26:03,545 INFO L137 encePairwiseOnDemand]: 395/437 looper letters, 906 selfloop transitions, 201 changer transitions 0/1268 dead transitions. [2022-11-25 17:26:03,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 1268 transitions, 17209 flow [2022-11-25 17:26:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:26:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:26:03,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1452 transitions. [2022-11-25 17:26:03,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5537757437070938 [2022-11-25 17:26:03,547 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1452 transitions. [2022-11-25 17:26:03,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1452 transitions. [2022-11-25 17:26:03,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:26:03,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1452 transitions. [2022-11-25 17:26:03,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:03,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:03,551 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:03,551 INFO L175 Difference]: Start difference. First operand has 284 places, 984 transitions, 13239 flow. Second operand 6 states and 1452 transitions. [2022-11-25 17:26:03,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 1268 transitions, 17209 flow [2022-11-25 17:26:03,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1268 transitions, 16713 flow, removed 248 selfloop flow, removed 0 redundant places. [2022-11-25 17:26:03,912 INFO L231 Difference]: Finished difference. Result has 293 places, 1176 transitions, 14669 flow [2022-11-25 17:26:03,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=12743, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=984, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=14669, PETRI_PLACES=293, PETRI_TRANSITIONS=1176} [2022-11-25 17:26:03,914 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 161 predicate places. [2022-11-25 17:26:03,914 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 1176 transitions, 14669 flow [2022-11-25 17:26:03,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:03,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:26:03,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:03,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:26:03,915 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:26:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:03,916 INFO L85 PathProgramCache]: Analyzing trace with hash -990613249, now seen corresponding path program 1 times [2022-11-25 17:26:03,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:03,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437849438] [2022-11-25 17:26:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:03,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:26:04,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:04,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437849438] [2022-11-25 17:26:04,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437849438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:04,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:04,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:04,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207409860] [2022-11-25 17:26:04,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:04,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:04,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:04,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:04,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:05,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:26:05,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 1176 transitions, 14669 flow. Second operand has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:05,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:26:05,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:26:05,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:26:11,021 INFO L130 PetriNetUnfolder]: 6231/14358 cut-off events. [2022-11-25 17:26:11,021 INFO L131 PetriNetUnfolder]: For 56779/57081 co-relation queries the response was YES. [2022-11-25 17:26:11,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64216 conditions, 14358 events. 6231/14358 cut-off events. For 56779/57081 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 108103 event pairs, 3006 based on Foata normal form. 10/14029 useless extension candidates. Maximal degree in co-relation 64137. Up to 11160 conditions per place. [2022-11-25 17:26:11,227 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 1015 selfloop transitions, 213 changer transitions 2/1383 dead transitions. [2022-11-25 17:26:11,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 1383 transitions, 18995 flow [2022-11-25 17:26:11,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:26:11,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:26:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1728 transitions. [2022-11-25 17:26:11,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.494279176201373 [2022-11-25 17:26:11,230 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1728 transitions. [2022-11-25 17:26:11,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1728 transitions. [2022-11-25 17:26:11,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:26:11,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1728 transitions. [2022-11-25 17:26:11,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:11,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:11,234 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:11,235 INFO L175 Difference]: Start difference. First operand has 293 places, 1176 transitions, 14669 flow. Second operand 8 states and 1728 transitions. [2022-11-25 17:26:11,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 1383 transitions, 18995 flow [2022-11-25 17:26:11,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1383 transitions, 18347 flow, removed 324 selfloop flow, removed 0 redundant places. [2022-11-25 17:26:11,700 INFO L231 Difference]: Finished difference. Result has 305 places, 1219 transitions, 15366 flow [2022-11-25 17:26:11,701 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=14161, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15366, PETRI_PLACES=305, PETRI_TRANSITIONS=1219} [2022-11-25 17:26:11,701 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 173 predicate places. [2022-11-25 17:26:11,701 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 1219 transitions, 15366 flow [2022-11-25 17:26:11,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:11,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:26:11,702 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:11,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:26:11,702 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:26:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -329762753, now seen corresponding path program 2 times [2022-11-25 17:26:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:11,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400803167] [2022-11-25 17:26:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:11,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:26:12,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:12,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400803167] [2022-11-25 17:26:12,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400803167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:12,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:12,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:12,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218959845] [2022-11-25 17:26:12,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:12,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:12,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:12,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:13,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:26:13,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 1219 transitions, 15366 flow. Second operand has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:13,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:26:13,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:26:13,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:26:18,665 INFO L130 PetriNetUnfolder]: 6181/14236 cut-off events. [2022-11-25 17:26:18,665 INFO L131 PetriNetUnfolder]: For 59588/59878 co-relation queries the response was YES. [2022-11-25 17:26:18,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64741 conditions, 14236 events. 6181/14236 cut-off events. For 59588/59878 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 108829 event pairs, 1374 based on Foata normal form. 28/14036 useless extension candidates. Maximal degree in co-relation 64656. Up to 5828 conditions per place. [2022-11-25 17:26:18,861 INFO L137 encePairwiseOnDemand]: 407/437 looper letters, 1484 selfloop transitions, 148 changer transitions 4/1789 dead transitions. [2022-11-25 17:26:18,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 1789 transitions, 22700 flow [2022-11-25 17:26:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:26:18,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 17:26:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2104 transitions. [2022-11-25 17:26:18,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5349605898804983 [2022-11-25 17:26:18,864 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2104 transitions. [2022-11-25 17:26:18,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2104 transitions. [2022-11-25 17:26:18,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:26:18,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2104 transitions. [2022-11-25 17:26:18,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 233.77777777777777) internal successors, (2104), 9 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:18,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:18,869 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:18,869 INFO L175 Difference]: Start difference. First operand has 305 places, 1219 transitions, 15366 flow. Second operand 9 states and 2104 transitions. [2022-11-25 17:26:18,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 1789 transitions, 22700 flow [2022-11-25 17:26:19,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1789 transitions, 22592 flow, removed 48 selfloop flow, removed 1 redundant places. [2022-11-25 17:26:19,490 INFO L231 Difference]: Finished difference. Result has 317 places, 1345 transitions, 17314 flow [2022-11-25 17:26:19,491 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=15258, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=17314, PETRI_PLACES=317, PETRI_TRANSITIONS=1345} [2022-11-25 17:26:19,491 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 185 predicate places. [2022-11-25 17:26:19,492 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 1345 transitions, 17314 flow [2022-11-25 17:26:19,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:19,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:26:19,492 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:19,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:26:19,492 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:26:19,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1529821093, now seen corresponding path program 1 times [2022-11-25 17:26:19,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:19,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303496520] [2022-11-25 17:26:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:19,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:26:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:19,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303496520] [2022-11-25 17:26:19,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303496520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:19,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:19,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:19,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112721837] [2022-11-25 17:26:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:19,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:19,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:19,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:20,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:26:20,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 1345 transitions, 17314 flow. Second operand has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:20,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:26:20,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:26:20,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:26:27,631 INFO L130 PetriNetUnfolder]: 6175/14249 cut-off events. [2022-11-25 17:26:27,631 INFO L131 PetriNetUnfolder]: For 66247/66590 co-relation queries the response was YES. [2022-11-25 17:26:27,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66006 conditions, 14249 events. 6175/14249 cut-off events. For 66247/66590 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 107398 event pairs, 2793 based on Foata normal form. 25/13970 useless extension candidates. Maximal degree in co-relation 65916. Up to 5726 conditions per place. [2022-11-25 17:26:27,932 INFO L137 encePairwiseOnDemand]: 398/437 looper letters, 1499 selfloop transitions, 195 changer transitions 4/1859 dead transitions. [2022-11-25 17:26:27,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1859 transitions, 24447 flow [2022-11-25 17:26:27,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:26:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:26:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3079 transitions. [2022-11-25 17:26:27,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.503269042170644 [2022-11-25 17:26:27,937 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3079 transitions. [2022-11-25 17:26:27,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3079 transitions. [2022-11-25 17:26:27,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:26:27,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3079 transitions. [2022-11-25 17:26:27,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 219.92857142857142) internal successors, (3079), 14 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:27,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 437.0) internal successors, (6555), 15 states have internal predecessors, (6555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:27,945 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 437.0) internal successors, (6555), 15 states have internal predecessors, (6555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:27,945 INFO L175 Difference]: Start difference. First operand has 317 places, 1345 transitions, 17314 flow. Second operand 14 states and 3079 transitions. [2022-11-25 17:26:27,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1859 transitions, 24447 flow [2022-11-25 17:26:29,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 1859 transitions, 24246 flow, removed 97 selfloop flow, removed 1 redundant places. [2022-11-25 17:26:29,041 INFO L231 Difference]: Finished difference. Result has 339 places, 1514 transitions, 19394 flow [2022-11-25 17:26:29,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=17159, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19394, PETRI_PLACES=339, PETRI_TRANSITIONS=1514} [2022-11-25 17:26:29,043 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 207 predicate places. [2022-11-25 17:26:29,043 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 1514 transitions, 19394 flow [2022-11-25 17:26:29,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:29,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:26:29,044 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:29,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 17:26:29,044 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:26:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash 57294591, now seen corresponding path program 3 times [2022-11-25 17:26:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:29,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632222001] [2022-11-25 17:26:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:29,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:26:29,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:29,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632222001] [2022-11-25 17:26:29,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632222001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:29,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:29,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:29,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663053952] [2022-11-25 17:26:29,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:29,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:29,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:29,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:29,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:30,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:26:30,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 1514 transitions, 19394 flow. Second operand has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:30,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:26:30,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:26:30,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:26:39,159 INFO L130 PetriNetUnfolder]: 6155/14231 cut-off events. [2022-11-25 17:26:39,159 INFO L131 PetriNetUnfolder]: For 73402/73766 co-relation queries the response was YES. [2022-11-25 17:26:39,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68528 conditions, 14231 events. 6155/14231 cut-off events. For 73402/73766 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 107207 event pairs, 2825 based on Foata normal form. 41/14063 useless extension candidates. Maximal degree in co-relation 68428. Up to 6110 conditions per place. [2022-11-25 17:26:39,401 INFO L137 encePairwiseOnDemand]: 408/437 looper letters, 1578 selfloop transitions, 155 changer transitions 4/1890 dead transitions. [2022-11-25 17:26:39,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1890 transitions, 25697 flow [2022-11-25 17:26:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:26:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 17:26:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2152 transitions. [2022-11-25 17:26:39,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.547165013984236 [2022-11-25 17:26:39,406 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2152 transitions. [2022-11-25 17:26:39,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2152 transitions. [2022-11-25 17:26:39,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:26:39,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2152 transitions. [2022-11-25 17:26:39,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 239.11111111111111) internal successors, (2152), 9 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:39,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:39,413 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 437.0) internal successors, (4370), 10 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:39,413 INFO L175 Difference]: Start difference. First operand has 339 places, 1514 transitions, 19394 flow. Second operand 9 states and 2152 transitions. [2022-11-25 17:26:39,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1890 transitions, 25697 flow [2022-11-25 17:26:40,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1890 transitions, 25681 flow, removed 8 selfloop flow, removed 0 redundant places. [2022-11-25 17:26:40,279 INFO L231 Difference]: Finished difference. Result has 352 places, 1543 transitions, 20436 flow [2022-11-25 17:26:40,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=19378, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=20436, PETRI_PLACES=352, PETRI_TRANSITIONS=1543} [2022-11-25 17:26:40,281 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 220 predicate places. [2022-11-25 17:26:40,282 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 1543 transitions, 20436 flow [2022-11-25 17:26:40,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:40,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:26:40,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:40,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 17:26:40,283 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:26:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:40,283 INFO L85 PathProgramCache]: Analyzing trace with hash -22037741, now seen corresponding path program 2 times [2022-11-25 17:26:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073440053] [2022-11-25 17:26:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:26:40,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:40,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073440053] [2022-11-25 17:26:40,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073440053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:40,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:40,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:40,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864045590] [2022-11-25 17:26:40,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:40,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:40,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:40,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:40,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:41,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:26:41,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1543 transitions, 20436 flow. Second operand has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:41,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:26:41,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:26:41,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:26:50,246 INFO L130 PetriNetUnfolder]: 6251/14388 cut-off events. [2022-11-25 17:26:50,246 INFO L131 PetriNetUnfolder]: For 80544/80901 co-relation queries the response was YES. [2022-11-25 17:26:50,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70824 conditions, 14388 events. 6251/14388 cut-off events. For 80544/80901 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 108280 event pairs, 2799 based on Foata normal form. 26/14113 useless extension candidates. Maximal degree in co-relation 70718. Up to 6042 conditions per place. [2022-11-25 17:26:50,520 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 1553 selfloop transitions, 196 changer transitions 4/1914 dead transitions. [2022-11-25 17:26:50,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1914 transitions, 26716 flow [2022-11-25 17:26:50,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:26:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 17:26:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2939 transitions. [2022-11-25 17:26:50,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.517338496743531 [2022-11-25 17:26:50,525 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2939 transitions. [2022-11-25 17:26:50,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2939 transitions. [2022-11-25 17:26:50,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:26:50,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2939 transitions. [2022-11-25 17:26:50,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 226.07692307692307) internal successors, (2939), 13 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:50,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 437.0) internal successors, (6118), 14 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:50,535 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 437.0) internal successors, (6118), 14 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:50,535 INFO L175 Difference]: Start difference. First operand has 352 places, 1543 transitions, 20436 flow. Second operand 13 states and 2939 transitions. [2022-11-25 17:26:50,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1914 transitions, 26716 flow [2022-11-25 17:26:51,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 1914 transitions, 26159 flow, removed 258 selfloop flow, removed 2 redundant places. [2022-11-25 17:26:51,487 INFO L231 Difference]: Finished difference. Result has 370 places, 1589 transitions, 21232 flow [2022-11-25 17:26:51,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=19995, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=21232, PETRI_PLACES=370, PETRI_TRANSITIONS=1589} [2022-11-25 17:26:51,488 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 238 predicate places. [2022-11-25 17:26:51,488 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 1589 transitions, 21232 flow [2022-11-25 17:26:51,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:51,488 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:26:51,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:51,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 17:26:51,489 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:26:51,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:51,490 INFO L85 PathProgramCache]: Analyzing trace with hash 595467641, now seen corresponding path program 4 times [2022-11-25 17:26:51,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:51,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625724054] [2022-11-25 17:26:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:51,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:26:52,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:52,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625724054] [2022-11-25 17:26:52,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625724054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:52,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:52,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:52,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796700995] [2022-11-25 17:26:52,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:52,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:52,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:52,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:52,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:52,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:26:52,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 1589 transitions, 21232 flow. Second operand has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:26:52,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:26:52,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:26:52,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:27:00,671 INFO L130 PetriNetUnfolder]: 6266/14422 cut-off events. [2022-11-25 17:27:00,671 INFO L131 PetriNetUnfolder]: For 81875/82284 co-relation queries the response was YES. [2022-11-25 17:27:00,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71984 conditions, 14422 events. 6266/14422 cut-off events. For 81875/82284 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 108591 event pairs, 2898 based on Foata normal form. 22/14230 useless extension candidates. Maximal degree in co-relation 71870. Up to 11440 conditions per place. [2022-11-25 17:27:00,945 INFO L137 encePairwiseOnDemand]: 400/437 looper letters, 1246 selfloop transitions, 324 changer transitions 2/1725 dead transitions. [2022-11-25 17:27:00,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1725 transitions, 25272 flow [2022-11-25 17:27:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:27:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:27:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1805 transitions. [2022-11-25 17:27:00,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5163043478260869 [2022-11-25 17:27:00,952 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1805 transitions. [2022-11-25 17:27:00,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1805 transitions. [2022-11-25 17:27:00,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:27:00,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1805 transitions. [2022-11-25 17:27:00,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.625) internal successors, (1805), 8 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:00,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:00,961 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 437.0) internal successors, (3933), 9 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:00,961 INFO L175 Difference]: Start difference. First operand has 370 places, 1589 transitions, 21232 flow. Second operand 8 states and 1805 transitions. [2022-11-25 17:27:00,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1725 transitions, 25272 flow [2022-11-25 17:27:02,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 1725 transitions, 24835 flow, removed 191 selfloop flow, removed 3 redundant places. [2022-11-25 17:27:02,111 INFO L231 Difference]: Finished difference. Result has 376 places, 1594 transitions, 21613 flow [2022-11-25 17:27:02,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=20809, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=319, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21613, PETRI_PLACES=376, PETRI_TRANSITIONS=1594} [2022-11-25 17:27:02,113 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 244 predicate places. [2022-11-25 17:27:02,113 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 1594 transitions, 21613 flow [2022-11-25 17:27:02,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:02,114 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:27:02,114 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:02,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 17:27:02,114 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:27:02,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:02,115 INFO L85 PathProgramCache]: Analyzing trace with hash 132823803, now seen corresponding path program 3 times [2022-11-25 17:27:02,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:02,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084959744] [2022-11-25 17:27:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:02,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:27:02,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:02,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084959744] [2022-11-25 17:27:02,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084959744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:02,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:02,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:27:02,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901551972] [2022-11-25 17:27:02,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:02,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:27:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:02,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:27:02,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:27:03,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:27:03,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 1594 transitions, 21613 flow. Second operand has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:03,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:27:03,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:27:03,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:27:11,252 INFO L130 PetriNetUnfolder]: 6243/14371 cut-off events. [2022-11-25 17:27:11,253 INFO L131 PetriNetUnfolder]: For 78948/79305 co-relation queries the response was YES. [2022-11-25 17:27:11,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71794 conditions, 14371 events. 6243/14371 cut-off events. For 78948/79305 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 108310 event pairs, 2874 based on Foata normal form. 34/14122 useless extension candidates. Maximal degree in co-relation 71679. Up to 11066 conditions per place. [2022-11-25 17:27:11,529 INFO L137 encePairwiseOnDemand]: 392/437 looper letters, 1249 selfloop transitions, 440 changer transitions 2/1852 dead transitions. [2022-11-25 17:27:11,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1852 transitions, 26960 flow [2022-11-25 17:27:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:27:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 17:27:11,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2022-11-25 17:27:11,535 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49412662090007625 [2022-11-25 17:27:11,535 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2022-11-25 17:27:11,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2022-11-25 17:27:11,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:27:11,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2022-11-25 17:27:11,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:11,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 437.0) internal successors, (6992), 16 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:11,552 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 437.0) internal successors, (6992), 16 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:11,553 INFO L175 Difference]: Start difference. First operand has 376 places, 1594 transitions, 21613 flow. Second operand 15 states and 3239 transitions. [2022-11-25 17:27:11,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1852 transitions, 26960 flow [2022-11-25 17:27:12,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1852 transitions, 26353 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 17:27:12,581 INFO L231 Difference]: Finished difference. Result has 393 places, 1609 transitions, 22608 flow [2022-11-25 17:27:12,582 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=21045, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=426, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=22608, PETRI_PLACES=393, PETRI_TRANSITIONS=1609} [2022-11-25 17:27:12,582 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, 261 predicate places. [2022-11-25 17:27:12,582 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 1609 transitions, 22608 flow [2022-11-25 17:27:12,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:12,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:27:12,583 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:12,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 17:27:12,583 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 17:27:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:12,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1019297471, now seen corresponding path program 5 times [2022-11-25 17:27:12,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:12,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470147797] [2022-11-25 17:27:12,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:12,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:27:13,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:13,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470147797] [2022-11-25 17:27:13,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470147797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:13,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:13,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:27:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968348707] [2022-11-25 17:27:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:13,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:27:13,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:13,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:27:13,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:27:14,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 437 [2022-11-25 17:27:14,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 1609 transitions, 22608 flow. Second operand has 9 states, 9 states have (on average 186.44444444444446) internal successors, (1678), 9 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:27:14,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:27:14,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 437 [2022-11-25 17:27:14,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand