./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:53:28,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:53:28,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:53:28,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:53:28,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:53:28,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:53:28,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:53:28,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:53:28,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:53:28,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:53:28,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:53:28,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:53:28,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:53:28,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:53:28,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:53:28,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:53:28,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:53:28,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:53:28,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:53:28,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:53:28,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:53:28,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:53:28,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:53:28,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:53:28,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:53:28,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:53:28,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:53:28,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:53:28,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:53:28,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:53:28,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:53:28,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:53:28,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:53:28,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:53:28,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:53:28,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:53:28,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:53:28,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:53:28,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:53:28,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:53:28,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:53:28,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:53:28,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:53:28,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:53:28,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:53:28,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:53:28,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:53:28,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:53:28,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:53:28,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:53:28,525 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:53:28,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:53:28,527 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:53:28,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:53:28,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:53:28,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:53:28,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:53:28,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:53:28,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:53:28,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:53:28,529 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:53:28,529 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:53:28,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:53:28,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:53:28,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:53:28,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:53:28,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:53:28,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:53:28,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:28,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:53:28,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:53:28,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:53:28,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:53:28,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:53:28,533 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:53:28,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:53:28,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:53:28,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-18 20:53:28,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:53:28,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:53:28,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:53:28,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:53:28,945 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:53:28,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-18 20:53:29,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/data/c314353e2/928b7547952f44ae8e932e2c97bdcbae/FLAGcdb0a3919 [2022-11-18 20:53:29,670 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:53:29,672 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-18 20:53:29,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/data/c314353e2/928b7547952f44ae8e932e2c97bdcbae/FLAGcdb0a3919 [2022-11-18 20:53:29,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/data/c314353e2/928b7547952f44ae8e932e2c97bdcbae [2022-11-18 20:53:29,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:53:29,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:53:29,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:29,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:53:29,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:53:29,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:29" (1/1) ... [2022-11-18 20:53:29,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6614b587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:29, skipping insertion in model container [2022-11-18 20:53:29,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:29" (1/1) ... [2022-11-18 20:53:30,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:53:30,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:53:30,387 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-18 20:53:30,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:30,425 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:53:30,476 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-18 20:53:30,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:30,501 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:53:30,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30 WrapperNode [2022-11-18 20:53:30,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:30,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:30,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:53:30,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:53:30,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,628 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 799 [2022-11-18 20:53:30,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:30,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:53:30,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:53:30,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:53:30,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,732 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:53:30,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:53:30,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:53:30,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:53:30,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (1/1) ... [2022-11-18 20:53:30,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:30,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:30,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:53:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:53:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:53:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:53:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:53:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:53:30,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db261a0-f880-4736-9f8a-be64904b8e75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:53:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:53:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:53:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:53:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:53:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:53:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:53:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:53:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:53:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:53:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:53:30,876 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:53:31,143 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:53:31,145 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:53:32,581 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:53:32,609 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:53:32,609 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:53:32,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:32 BoogieIcfgContainer [2022-11-18 20:53:32,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:53:32,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:53:32,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:53:32,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:53:32,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:53:29" (1/3) ... [2022-11-18 20:53:32,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204a05a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:32, skipping insertion in model container [2022-11-18 20:53:32,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:30" (2/3) ... [2022-11-18 20:53:32,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204a05a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:32, skipping insertion in model container [2022-11-18 20:53:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:32" (3/3) ... [2022-11-18 20:53:32,625 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-18 20:53:32,637 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:53:32,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:53:32,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2022-11-18 20:53:32,651 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:53:32,900 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:53:32,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-18 20:53:33,792 INFO L130 PetriNetUnfolder]: 48/1052 cut-off events. [2022-11-18 20:53:33,793 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:53:33,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 1052 events. 48/1052 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2224 event pairs, 0 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-18 20:53:33,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-18 20:53:33,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 991 places, 1026 transitions, 2070 flow [2022-11-18 20:53:33,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:53:33,900 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;@5440cd28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:53:33,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2022-11-18 20:53:33,908 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-18 20:53:33,909 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:53:33,909 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:33,911 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:33,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:33,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash 250335609, now seen corresponding path program 1 times [2022-11-18 20:53:33,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:33,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799831908] [2022-11-18 20:53:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:33,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:34,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:34,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799831908] [2022-11-18 20:53:34,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799831908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:34,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:34,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:34,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541114439] [2022-11-18 20:53:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:34,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:34,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:34,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:34,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-18 20:53:34,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 991 places, 1026 transitions, 2070 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:34,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:34,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-18 20:53:34,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:37,911 INFO L130 PetriNetUnfolder]: 379/5191 cut-off events. [2022-11-18 20:53:37,911 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-11-18 20:53:38,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5958 conditions, 5191 events. 379/5191 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 43548 event pairs, 279 based on Foata normal form. 171/4395 useless extension candidates. Maximal degree in co-relation 5211. Up to 522 conditions per place. [2022-11-18 20:53:38,092 INFO L137 encePairwiseOnDemand]: 1024/1055 looper letters, 39 selfloop transitions, 2 changer transitions 16/997 dead transitions. [2022-11-18 20:53:38,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 997 transitions, 2094 flow [2022-11-18 20:53:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:38,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:38,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2022-11-18 20:53:38,126 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.953870458135861 [2022-11-18 20:53:38,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3019 transitions. [2022-11-18 20:53:38,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3019 transitions. [2022-11-18 20:53:38,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:38,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3019 transitions. [2022-11-18 20:53:38,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.3333333333334) internal successors, (3019), 3 states have internal predecessors, (3019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:38,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:38,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:38,174 INFO L175 Difference]: Start difference. First operand has 991 places, 1026 transitions, 2070 flow. Second operand 3 states and 3019 transitions. [2022-11-18 20:53:38,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 992 places, 997 transitions, 2094 flow [2022-11-18 20:53:38,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 986 places, 997 transitions, 2082 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:53:38,223 INFO L231 Difference]: Finished difference. Result has 986 places, 981 transitions, 1972 flow [2022-11-18 20:53:38,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=2000, PETRI_DIFFERENCE_MINUEND_PLACES=984, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=995, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1972, PETRI_PLACES=986, PETRI_TRANSITIONS=981} [2022-11-18 20:53:38,233 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -5 predicate places. [2022-11-18 20:53:38,234 INFO L495 AbstractCegarLoop]: Abstraction has has 986 places, 981 transitions, 1972 flow [2022-11-18 20:53:38,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:38,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:38,237 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:38,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:53:38,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash 743606059, now seen corresponding path program 1 times [2022-11-18 20:53:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:38,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355392912] [2022-11-18 20:53:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:38,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:38,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:38,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355392912] [2022-11-18 20:53:38,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355392912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:38,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:38,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:38,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929655714] [2022-11-18 20:53:38,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:38,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:38,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:38,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:38,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-18 20:53:38,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 981 transitions, 1972 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:38,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:38,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-18 20:53:38,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:40,540 INFO L130 PetriNetUnfolder]: 212/3982 cut-off events. [2022-11-18 20:53:40,541 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-18 20:53:40,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4303 conditions, 3982 events. 212/3982 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 30041 event pairs, 132 based on Foata normal form. 0/3334 useless extension candidates. Maximal degree in co-relation 4256. Up to 257 conditions per place. [2022-11-18 20:53:40,660 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/971 dead transitions. [2022-11-18 20:53:40,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 971 transitions, 2008 flow [2022-11-18 20:53:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-18 20:53:40,668 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-18 20:53:40,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-18 20:53:40,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-18 20:53:40,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:40,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-18 20:53:40,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:40,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:40,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:40,692 INFO L175 Difference]: Start difference. First operand has 986 places, 981 transitions, 1972 flow. Second operand 3 states and 2996 transitions. [2022-11-18 20:53:40,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 971 transitions, 2008 flow [2022-11-18 20:53:40,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 971 transitions, 2004 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:40,714 INFO L231 Difference]: Finished difference. Result has 960 places, 971 transitions, 1950 flow [2022-11-18 20:53:40,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1950, PETRI_PLACES=960, PETRI_TRANSITIONS=971} [2022-11-18 20:53:40,717 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-18 20:53:40,718 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 971 transitions, 1950 flow [2022-11-18 20:53:40,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:40,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:40,721 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:40,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:53:40,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:40,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:40,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1543466916, now seen corresponding path program 1 times [2022-11-18 20:53:40,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:40,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640668393] [2022-11-18 20:53:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:40,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:40,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:40,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640668393] [2022-11-18 20:53:40,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640668393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:40,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:40,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:40,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505272169] [2022-11-18 20:53:40,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:40,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:40,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:40,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:40,845 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-18 20:53:40,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 971 transitions, 1950 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:40,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:40,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-18 20:53:40,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:42,646 INFO L130 PetriNetUnfolder]: 187/3345 cut-off events. [2022-11-18 20:53:42,646 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 20:53:42,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3650 conditions, 3345 events. 187/3345 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 22446 event pairs, 117 based on Foata normal form. 0/2754 useless extension candidates. Maximal degree in co-relation 3604. Up to 279 conditions per place. [2022-11-18 20:53:42,781 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2022-11-18 20:53:42,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 970 transitions, 2030 flow [2022-11-18 20:53:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-18 20:53:42,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-18 20:53:42,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-18 20:53:42,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-18 20:53:42,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:42,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-18 20:53:42,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,822 INFO L175 Difference]: Start difference. First operand has 960 places, 971 transitions, 1950 flow. Second operand 3 states and 2991 transitions. [2022-11-18 20:53:42,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 970 transitions, 2030 flow [2022-11-18 20:53:42,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 970 transitions, 2029 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:53:42,847 INFO L231 Difference]: Finished difference. Result has 960 places, 970 transitions, 1951 flow [2022-11-18 20:53:42,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=960, PETRI_TRANSITIONS=970} [2022-11-18 20:53:42,853 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-18 20:53:42,853 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 970 transitions, 1951 flow [2022-11-18 20:53:42,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:42,856 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:42,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:53:42,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:42,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1841446441, now seen corresponding path program 1 times [2022-11-18 20:53:42,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:42,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854111362] [2022-11-18 20:53:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:42,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:42,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:42,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854111362] [2022-11-18 20:53:42,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854111362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:42,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:42,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:42,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956382491] [2022-11-18 20:53:42,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:42,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:42,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:42,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-18 20:53:43,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 970 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:43,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:43,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-18 20:53:43,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:44,580 INFO L130 PetriNetUnfolder]: 119/2776 cut-off events. [2022-11-18 20:53:44,581 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:53:44,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 2776 events. 119/2776 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16735 event pairs, 60 based on Foata normal form. 0/2346 useless extension candidates. Maximal degree in co-relation 2903. Up to 149 conditions per place. [2022-11-18 20:53:44,682 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/960 dead transitions. [2022-11-18 20:53:44,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 960 transitions, 1987 flow [2022-11-18 20:53:44,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:44,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-18 20:53:44,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-18 20:53:44,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-18 20:53:44,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-18 20:53:44,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:44,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-18 20:53:44,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,715 INFO L175 Difference]: Start difference. First operand has 960 places, 970 transitions, 1951 flow. Second operand 3 states and 2996 transitions. [2022-11-18 20:53:44,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 960 transitions, 1987 flow [2022-11-18 20:53:44,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 960 transitions, 1983 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:44,734 INFO L231 Difference]: Finished difference. Result has 950 places, 960 transitions, 1929 flow [2022-11-18 20:53:44,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=950, PETRI_TRANSITIONS=960} [2022-11-18 20:53:44,737 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-18 20:53:44,738 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 960 transitions, 1929 flow [2022-11-18 20:53:44,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:44,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:44,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:53:44,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:44,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:44,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1934777423, now seen corresponding path program 1 times [2022-11-18 20:53:44,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:44,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100901182] [2022-11-18 20:53:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:44,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:44,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:44,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100901182] [2022-11-18 20:53:44,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100901182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:44,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:44,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:44,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035694682] [2022-11-18 20:53:44,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:44,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:44,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:44,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:44,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:44,825 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-18 20:53:44,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 960 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:44,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-18 20:53:44,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:46,824 INFO L130 PetriNetUnfolder]: 399/4762 cut-off events. [2022-11-18 20:53:46,824 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-18 20:53:46,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5329 conditions, 4762 events. 399/4762 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 40217 event pairs, 279 based on Foata normal form. 0/3935 useless extension candidates. Maximal degree in co-relation 5283. Up to 549 conditions per place. [2022-11-18 20:53:46,973 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-11-18 20:53:46,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 959 transitions, 2009 flow [2022-11-18 20:53:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:46,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:46,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-18 20:53:46,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-18 20:53:46,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-18 20:53:46,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-18 20:53:46,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:46,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-18 20:53:46,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:47,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:47,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:47,007 INFO L175 Difference]: Start difference. First operand has 950 places, 960 transitions, 1929 flow. Second operand 3 states and 2991 transitions. [2022-11-18 20:53:47,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 959 transitions, 2009 flow [2022-11-18 20:53:47,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 959 transitions, 2008 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:53:47,031 INFO L231 Difference]: Finished difference. Result has 950 places, 959 transitions, 1930 flow [2022-11-18 20:53:47,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1930, PETRI_PLACES=950, PETRI_TRANSITIONS=959} [2022-11-18 20:53:47,034 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-18 20:53:47,034 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 959 transitions, 1930 flow [2022-11-18 20:53:47,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:47,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:47,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:47,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:53:47,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:47,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:47,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1958031148, now seen corresponding path program 1 times [2022-11-18 20:53:47,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:47,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170953897] [2022-11-18 20:53:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:47,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:47,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:47,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170953897] [2022-11-18 20:53:47,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170953897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:47,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:47,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:47,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799783565] [2022-11-18 20:53:47,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:47,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:47,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:47,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:47,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:47,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-18 20:53:47,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 959 transitions, 1930 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:47,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:47,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-18 20:53:47,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:48,786 INFO L130 PetriNetUnfolder]: 226/3719 cut-off events. [2022-11-18 20:53:48,786 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-18 20:53:48,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 3719 events. 226/3719 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27176 event pairs, 132 based on Foata normal form. 0/3164 useless extension candidates. Maximal degree in co-relation 3966. Up to 274 conditions per place. [2022-11-18 20:53:48,860 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/949 dead transitions. [2022-11-18 20:53:48,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 949 transitions, 1966 flow [2022-11-18 20:53:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-18 20:53:48,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-18 20:53:48,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-18 20:53:48,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-18 20:53:48,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:48,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-18 20:53:48,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:48,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:48,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:48,889 INFO L175 Difference]: Start difference. First operand has 950 places, 959 transitions, 1930 flow. Second operand 3 states and 2996 transitions. [2022-11-18 20:53:48,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 949 transitions, 1966 flow [2022-11-18 20:53:48,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 949 transitions, 1962 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:48,908 INFO L231 Difference]: Finished difference. Result has 940 places, 949 transitions, 1908 flow [2022-11-18 20:53:48,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1906, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1908, PETRI_PLACES=940, PETRI_TRANSITIONS=949} [2022-11-18 20:53:48,911 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-18 20:53:48,911 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 949 transitions, 1908 flow [2022-11-18 20:53:48,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:48,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:48,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:48,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:53:48,914 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:48,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:48,914 INFO L85 PathProgramCache]: Analyzing trace with hash -243095769, now seen corresponding path program 1 times [2022-11-18 20:53:48,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:48,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020377568] [2022-11-18 20:53:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:48,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:48,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:48,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020377568] [2022-11-18 20:53:48,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020377568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:48,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:48,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:48,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756413044] [2022-11-18 20:53:48,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:48,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:48,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:48,977 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1055 [2022-11-18 20:53:48,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 949 transitions, 1908 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:48,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:48,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1055 [2022-11-18 20:53:48,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:49,404 INFO L130 PetriNetUnfolder]: 29/1284 cut-off events. [2022-11-18 20:53:49,405 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-18 20:53:49,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1284 events. 29/1284 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3677 event pairs, 6 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1282. Up to 28 conditions per place. [2022-11-18 20:53:49,433 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 15 selfloop transitions, 2 changer transitions 0/948 dead transitions. [2022-11-18 20:53:49,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 948 transitions, 1940 flow [2022-11-18 20:53:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:49,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2022-11-18 20:53:49,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601895734597157 [2022-11-18 20:53:49,441 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3039 transitions. [2022-11-18 20:53:49,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3039 transitions. [2022-11-18 20:53:49,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:49,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3039 transitions. [2022-11-18 20:53:49,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.0) internal successors, (3039), 3 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:49,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:49,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:49,458 INFO L175 Difference]: Start difference. First operand has 940 places, 949 transitions, 1908 flow. Second operand 3 states and 3039 transitions. [2022-11-18 20:53:49,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 948 transitions, 1940 flow [2022-11-18 20:53:49,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 948 transitions, 1939 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:53:49,475 INFO L231 Difference]: Finished difference. Result has 940 places, 948 transitions, 1909 flow [2022-11-18 20:53:49,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1909, PETRI_PLACES=940, PETRI_TRANSITIONS=948} [2022-11-18 20:53:49,477 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-18 20:53:49,478 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 948 transitions, 1909 flow [2022-11-18 20:53:49,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:49,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:49,480 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:49,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:53:49,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:49,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash -81760298, now seen corresponding path program 1 times [2022-11-18 20:53:49,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:49,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944442116] [2022-11-18 20:53:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:49,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:49,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944442116] [2022-11-18 20:53:49,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944442116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:49,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:49,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971294389] [2022-11-18 20:53:49,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:49,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:49,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 948 transitions, 1909 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:49,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:49,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:49,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:50,060 INFO L130 PetriNetUnfolder]: 47/1527 cut-off events. [2022-11-18 20:53:50,060 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:53:50,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1527 events. 47/1527 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6629 event pairs, 18 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 1566. Up to 55 conditions per place. [2022-11-18 20:53:50,101 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/947 dead transitions. [2022-11-18 20:53:50,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 947 transitions, 1947 flow [2022-11-18 20:53:50,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:50,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:50,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:50,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:50,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:50,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:50,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,132 INFO L175 Difference]: Start difference. First operand has 940 places, 948 transitions, 1909 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:50,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 947 transitions, 1947 flow [2022-11-18 20:53:50,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 947 transitions, 1943 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:50,151 INFO L231 Difference]: Finished difference. Result has 939 places, 947 transitions, 1907 flow [2022-11-18 20:53:50,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1907, PETRI_PLACES=939, PETRI_TRANSITIONS=947} [2022-11-18 20:53:50,156 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -52 predicate places. [2022-11-18 20:53:50,156 INFO L495 AbstractCegarLoop]: Abstraction has has 939 places, 947 transitions, 1907 flow [2022-11-18 20:53:50,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,158 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:50,159 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:50,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:53:50,159 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:50,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:50,160 INFO L85 PathProgramCache]: Analyzing trace with hash -53478059, now seen corresponding path program 1 times [2022-11-18 20:53:50,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:50,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873376860] [2022-11-18 20:53:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:50,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:50,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:50,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873376860] [2022-11-18 20:53:50,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873376860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:50,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:50,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555101554] [2022-11-18 20:53:50,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:50,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:50,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:50,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:50,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 947 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:50,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:50,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:50,669 INFO L130 PetriNetUnfolder]: 47/1488 cut-off events. [2022-11-18 20:53:50,669 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-18 20:53:50,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 1488 events. 47/1488 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6121 event pairs, 18 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 1527. Up to 55 conditions per place. [2022-11-18 20:53:50,695 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/946 dead transitions. [2022-11-18 20:53:50,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 946 transitions, 1945 flow [2022-11-18 20:53:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:50,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:50,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:50,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:50,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:50,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:50,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,723 INFO L175 Difference]: Start difference. First operand has 939 places, 947 transitions, 1907 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:50,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 946 transitions, 1945 flow [2022-11-18 20:53:50,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 946 transitions, 1941 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:50,742 INFO L231 Difference]: Finished difference. Result has 938 places, 946 transitions, 1905 flow [2022-11-18 20:53:50,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1905, PETRI_PLACES=938, PETRI_TRANSITIONS=946} [2022-11-18 20:53:50,744 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -53 predicate places. [2022-11-18 20:53:50,745 INFO L495 AbstractCegarLoop]: Abstraction has has 938 places, 946 transitions, 1905 flow [2022-11-18 20:53:50,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:50,747 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:50,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:53:50,747 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:50,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:50,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1667769144, now seen corresponding path program 1 times [2022-11-18 20:53:50,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:50,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777313904] [2022-11-18 20:53:50,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:50,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:50,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777313904] [2022-11-18 20:53:50,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777313904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:50,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:50,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131070806] [2022-11-18 20:53:50,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:50,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:50,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:50,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:50,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 946 transitions, 1905 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:50,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:50,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:50,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:51,240 INFO L130 PetriNetUnfolder]: 26/1140 cut-off events. [2022-11-18 20:53:51,240 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-18 20:53:51,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1140 events. 26/1140 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3110 event pairs, 6 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1140. Up to 31 conditions per place. [2022-11-18 20:53:51,266 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/945 dead transitions. [2022-11-18 20:53:51,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 945 transitions, 1943 flow [2022-11-18 20:53:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:51,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:51,276 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:51,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:51,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:51,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:51,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:51,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:51,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:51,299 INFO L175 Difference]: Start difference. First operand has 938 places, 946 transitions, 1905 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:51,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 945 transitions, 1943 flow [2022-11-18 20:53:51,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 945 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:51,323 INFO L231 Difference]: Finished difference. Result has 937 places, 945 transitions, 1903 flow [2022-11-18 20:53:51,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1903, PETRI_PLACES=937, PETRI_TRANSITIONS=945} [2022-11-18 20:53:51,326 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -54 predicate places. [2022-11-18 20:53:51,326 INFO L495 AbstractCegarLoop]: Abstraction has has 937 places, 945 transitions, 1903 flow [2022-11-18 20:53:51,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:51,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:51,328 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:51,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:53:51,329 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:51,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1198197824, now seen corresponding path program 1 times [2022-11-18 20:53:51,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:51,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661102929] [2022-11-18 20:53:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:51,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:51,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:51,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661102929] [2022-11-18 20:53:51,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661102929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:51,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:51,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:51,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102513648] [2022-11-18 20:53:51,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:51,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:51,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:51,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 945 transitions, 1903 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:51,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:51,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:51,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:51,965 INFO L130 PetriNetUnfolder]: 44/1383 cut-off events. [2022-11-18 20:53:51,965 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-18 20:53:51,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1383 events. 44/1383 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5289 event pairs, 18 based on Foata normal form. 0/1200 useless extension candidates. Maximal degree in co-relation 1413. Up to 55 conditions per place. [2022-11-18 20:53:51,995 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-18 20:53:51,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 944 transitions, 1941 flow [2022-11-18 20:53:51,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:52,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:52,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:52,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:52,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:52,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:52,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,028 INFO L175 Difference]: Start difference. First operand has 937 places, 945 transitions, 1903 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:52,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 944 transitions, 1941 flow [2022-11-18 20:53:52,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 944 transitions, 1937 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:52,051 INFO L231 Difference]: Finished difference. Result has 936 places, 944 transitions, 1901 flow [2022-11-18 20:53:52,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=936, PETRI_TRANSITIONS=944} [2022-11-18 20:53:52,054 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -55 predicate places. [2022-11-18 20:53:52,054 INFO L495 AbstractCegarLoop]: Abstraction has has 936 places, 944 transitions, 1901 flow [2022-11-18 20:53:52,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:52,057 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:52,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:53:52,057 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:52,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1496457004, now seen corresponding path program 1 times [2022-11-18 20:53:52,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:52,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186267969] [2022-11-18 20:53:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:52,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:52,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186267969] [2022-11-18 20:53:52,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186267969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:52,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:52,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:52,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904229291] [2022-11-18 20:53:52,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:52,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:52,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:52,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:52,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:52,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:52,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:52,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:52,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:52,788 INFO L130 PetriNetUnfolder]: 44/1344 cut-off events. [2022-11-18 20:53:52,789 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-18 20:53:52,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 1344 events. 44/1344 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5110 event pairs, 18 based on Foata normal form. 0/1168 useless extension candidates. Maximal degree in co-relation 1374. Up to 55 conditions per place. [2022-11-18 20:53:52,830 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-18 20:53:52,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 943 transitions, 1939 flow [2022-11-18 20:53:52,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:52,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:52,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:52,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:52,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:52,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:52,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,860 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,860 INFO L175 Difference]: Start difference. First operand has 936 places, 944 transitions, 1901 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:52,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 943 transitions, 1939 flow [2022-11-18 20:53:52,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:52,885 INFO L231 Difference]: Finished difference. Result has 935 places, 943 transitions, 1899 flow [2022-11-18 20:53:52,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=935, PETRI_TRANSITIONS=943} [2022-11-18 20:53:52,887 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -56 predicate places. [2022-11-18 20:53:52,888 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 943 transitions, 1899 flow [2022-11-18 20:53:52,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:52,890 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:52,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:53:52,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash -638805476, now seen corresponding path program 1 times [2022-11-18 20:53:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:52,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388332633] [2022-11-18 20:53:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:52,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:52,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388332633] [2022-11-18 20:53:52,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388332633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:52,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:52,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:52,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652407516] [2022-11-18 20:53:52,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:52,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:52,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:52,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:52,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:52,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:52,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:52,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:52,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:53,402 INFO L130 PetriNetUnfolder]: 23/976 cut-off events. [2022-11-18 20:53:53,402 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-18 20:53:53,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 976 events. 23/976 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2299 event pairs, 6 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 972. Up to 30 conditions per place. [2022-11-18 20:53:53,426 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 17 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-18 20:53:53,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 942 transitions, 1935 flow [2022-11-18 20:53:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3032 transitions. [2022-11-18 20:53:53,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9579778830963666 [2022-11-18 20:53:53,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3032 transitions. [2022-11-18 20:53:53,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3032 transitions. [2022-11-18 20:53:53,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:53,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3032 transitions. [2022-11-18 20:53:53,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1010.6666666666666) internal successors, (3032), 3 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,452 INFO L175 Difference]: Start difference. First operand has 935 places, 943 transitions, 1899 flow. Second operand 3 states and 3032 transitions. [2022-11-18 20:53:53,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 942 transitions, 1935 flow [2022-11-18 20:53:53,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 942 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:53,473 INFO L231 Difference]: Finished difference. Result has 934 places, 942 transitions, 1897 flow [2022-11-18 20:53:53,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=934, PETRI_TRANSITIONS=942} [2022-11-18 20:53:53,476 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -57 predicate places. [2022-11-18 20:53:53,477 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 942 transitions, 1897 flow [2022-11-18 20:53:53,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:53,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:53,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:53:53,479 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:53,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash 963197328, now seen corresponding path program 1 times [2022-11-18 20:53:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:53,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943615674] [2022-11-18 20:53:53,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:53,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:53,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:53,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943615674] [2022-11-18 20:53:53,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943615674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:53,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:53,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:53,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577343755] [2022-11-18 20:53:53,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:53,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:53,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:53,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:53,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:53,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:54,105 INFO L130 PetriNetUnfolder]: 41/1219 cut-off events. [2022-11-18 20:53:54,106 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-18 20:53:54,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1219 events. 41/1219 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3865 event pairs, 18 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1240. Up to 55 conditions per place. [2022-11-18 20:53:54,136 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-18 20:53:54,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 941 transitions, 1935 flow [2022-11-18 20:53:54,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:54,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:54,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:54,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:54,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:54,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:54,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,164 INFO L175 Difference]: Start difference. First operand has 934 places, 942 transitions, 1897 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:54,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 941 transitions, 1935 flow [2022-11-18 20:53:54,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 941 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:54,189 INFO L231 Difference]: Finished difference. Result has 933 places, 941 transitions, 1895 flow [2022-11-18 20:53:54,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=933, PETRI_TRANSITIONS=941} [2022-11-18 20:53:54,192 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -58 predicate places. [2022-11-18 20:53:54,192 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 941 transitions, 1895 flow [2022-11-18 20:53:54,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:54,194 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:54,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:53:54,194 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:54,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:54,195 INFO L85 PathProgramCache]: Analyzing trace with hash 252536436, now seen corresponding path program 1 times [2022-11-18 20:53:54,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:54,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264226020] [2022-11-18 20:53:54,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:54,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:54,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:54,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264226020] [2022-11-18 20:53:54,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264226020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:54,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:54,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:54,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898792243] [2022-11-18 20:53:54,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:54,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:54,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:54,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:54,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:54,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-18 20:53:54,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:54,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-18 20:53:54,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:54,813 INFO L130 PetriNetUnfolder]: 41/1180 cut-off events. [2022-11-18 20:53:54,813 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-18 20:53:54,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 1180 events. 41/1180 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3654 event pairs, 18 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 1201. Up to 55 conditions per place. [2022-11-18 20:53:54,848 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-18 20:53:54,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 940 transitions, 1933 flow [2022-11-18 20:53:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-18 20:53:54,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-18 20:53:54,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-18 20:53:54,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-18 20:53:54,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:54,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-18 20:53:54,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,883 INFO L175 Difference]: Start difference. First operand has 933 places, 941 transitions, 1895 flow. Second operand 3 states and 3033 transitions. [2022-11-18 20:53:54,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 940 transitions, 1933 flow [2022-11-18 20:53:54,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:54,909 INFO L231 Difference]: Finished difference. Result has 932 places, 940 transitions, 1893 flow [2022-11-18 20:53:54,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=932, PETRI_TRANSITIONS=940} [2022-11-18 20:53:54,912 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -59 predicate places. [2022-11-18 20:53:54,913 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 940 transitions, 1893 flow [2022-11-18 20:53:54,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:54,917 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:54,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:53:54,918 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:54,918 INFO L85 PathProgramCache]: Analyzing trace with hash -565249488, now seen corresponding path program 1 times [2022-11-18 20:53:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:54,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637133717] [2022-11-18 20:53:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:54,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:55,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:55,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637133717] [2022-11-18 20:53:55,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637133717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:55,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:55,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:55,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42838493] [2022-11-18 20:53:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:55,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:55,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:55,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:55,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:55,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1055 [2022-11-18 20:53:55,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:55,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:55,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1055 [2022-11-18 20:53:55,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:56,759 INFO L130 PetriNetUnfolder]: 191/3573 cut-off events. [2022-11-18 20:53:56,759 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 20:53:56,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3895 conditions, 3573 events. 191/3573 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 25549 event pairs, 132 based on Foata normal form. 0/3047 useless extension candidates. Maximal degree in co-relation 3849. Up to 256 conditions per place. [2022-11-18 20:53:56,851 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 21 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-18 20:53:56,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 939 transitions, 1937 flow [2022-11-18 20:53:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:53:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3027 transitions. [2022-11-18 20:53:56,860 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9563981042654028 [2022-11-18 20:53:56,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3027 transitions. [2022-11-18 20:53:56,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3027 transitions. [2022-11-18 20:53:56,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:56,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3027 transitions. [2022-11-18 20:53:56,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:56,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:56,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:56,873 INFO L175 Difference]: Start difference. First operand has 932 places, 940 transitions, 1893 flow. Second operand 3 states and 3027 transitions. [2022-11-18 20:53:56,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 939 transitions, 1937 flow [2022-11-18 20:53:56,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 939 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:56,891 INFO L231 Difference]: Finished difference. Result has 931 places, 939 transitions, 1891 flow [2022-11-18 20:53:56,893 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=931, PETRI_TRANSITIONS=939} [2022-11-18 20:53:56,893 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -60 predicate places. [2022-11-18 20:53:56,894 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 939 transitions, 1891 flow [2022-11-18 20:53:56,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:56,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:56,895 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:56,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:53:56,896 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-18 20:53:56,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1831664488, now seen corresponding path program 1 times [2022-11-18 20:53:56,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:56,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027625430] [2022-11-18 20:53:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:57,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:57,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027625430] [2022-11-18 20:53:57,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027625430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:57,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:57,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:53:57,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738350007] [2022-11-18 20:53:57,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:57,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:57,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:57,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:57,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:57,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 851 out of 1055 [2022-11-18 20:53:57,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 939 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 852.8333333333334) internal successors, (5117), 6 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:57,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:57,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 851 of 1055 [2022-11-18 20:53:57,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand