./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN --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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- 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-6b4ec56 [2022-11-20 11:32:54,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:32:54,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:32:54,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:32:54,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:32:54,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:32:54,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:32:54,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:32:54,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:32:54,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:32:54,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:32:54,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:32:54,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:32:54,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:32:54,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:32:54,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:32:54,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:32:54,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:32:54,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:32:54,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:32:54,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:32:54,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:32:54,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:32:54,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:32:54,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:32:54,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:32:54,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:32:54,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:32:54,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:32:54,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:32:54,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:32:54,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:32:54,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:32:54,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:32:54,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:32:54,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:32:54,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:32:54,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:32:54,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:32:54,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:32:54,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:32:54,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:32:54,664 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:32:54,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:32:54,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:32:54,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:32:54,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:32:54,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:32:54,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:32:54,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:32:54,668 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:32:54,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:32:54,668 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:32:54,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:32:54,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:32:54,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:32:54,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:32:54,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:32:54,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:32:54,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:32:54,671 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:32:54,671 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:32:54,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:32:54,671 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:32:54,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:32:54,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:32:54,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:32:54,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:32:54,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:32:54,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:32:54,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:32:54,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:32:54,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:32:54,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:32:54,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:32:54,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:32:54,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:32:54,678 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_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-20 11:32:55,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:32:55,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:32:55,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:32:55,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:32:55,126 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:32:55,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-20 11:32:59,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:32:59,662 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:32:59,663 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-20 11:32:59,684 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/data/c8c0375ec/097eec9b7b38487583b71cc733c97fdc/FLAG7bb201fb0 [2022-11-20 11:32:59,703 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/data/c8c0375ec/097eec9b7b38487583b71cc733c97fdc [2022-11-20 11:32:59,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:32:59,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:32:59,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:32:59,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:32:59,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:32:59,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:59" (1/1) ... [2022-11-20 11:32:59,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4795fd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:59, skipping insertion in model container [2022-11-20 11:32:59,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:59" (1/1) ... [2022-11-20 11:32:59,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:32:59,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:32:59,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:33:00,810 WARN L237 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_e6b992d6-a60e-4e0f-831a-795b929f6f24/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-20 11:33:00,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:33:00,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:33:00,950 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:33:01,033 WARN L237 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_e6b992d6-a60e-4e0f-831a-795b929f6f24/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-20 11:33:01,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:33:01,340 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:33:01,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01 WrapperNode [2022-11-20 11:33:01,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:33:01,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:33:01,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:33:01,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:33:01,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,494 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-20 11:33:01,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:33:01,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:33:01,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:33:01,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:33:01,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,569 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:33:01,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:33:01,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:33:01,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:33:01,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (1/1) ... [2022-11-20 11:33:01,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:33:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:33:01,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:33:01,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b992d6-a60e-4e0f-831a-795b929f6f24/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:33:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:33:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:33:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:33:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:33:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:33:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:33:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:33:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:33:01,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:33:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 11:33:01,702 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 11:33:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:33:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:33:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:33:01,705 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:33:02,176 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:33:02,180 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:33:02,864 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:33:03,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:33:03,000 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:33:03,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:03 BoogieIcfgContainer [2022-11-20 11:33:03,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:33:03,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:33:03,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:33:03,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:33:03,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:59" (1/3) ... [2022-11-20 11:33:03,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465f368c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:03, skipping insertion in model container [2022-11-20 11:33:03,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:01" (2/3) ... [2022-11-20 11:33:03,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465f368c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:03, skipping insertion in model container [2022-11-20 11:33:03,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:03" (3/3) ... [2022-11-20 11:33:03,015 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-20 11:33:03,025 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:33:03,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:33:03,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-20 11:33:03,037 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:33:03,130 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:33:03,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-20 11:33:03,424 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-20 11:33:03,425 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:33:03,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 605 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-20 11:33:03,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-20 11:33:03,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-20 11:33:03,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:33:03,483 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;@63219f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:33:03,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-20 11:33:03,497 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-20 11:33:03,498 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:33:03,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:03,499 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:03,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash -413904667, now seen corresponding path program 1 times [2022-11-20 11:33:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:03,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724956511] [2022-11-20 11:33:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:03,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:05,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:05,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724956511] [2022-11-20 11:33:05,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724956511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:05,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:05,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:05,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344113831] [2022-11-20 11:33:05,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:05,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:05,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:05,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:05,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:05,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-20 11:33:05,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:05,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:05,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-20 11:33:05,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:06,302 INFO L130 PetriNetUnfolder]: 850/2460 cut-off events. [2022-11-20 11:33:06,302 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 11:33:06,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3982 conditions, 2460 events. 850/2460 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 16844 event pairs, 849 based on Foata normal form. 36/2317 useless extension candidates. Maximal degree in co-relation 3619. Up to 1499 conditions per place. [2022-11-20 11:33:06,330 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-20 11:33:06,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-20 11:33:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-20 11:33:06,351 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-20 11:33:06,352 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-20 11:33:06,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-20 11:33:06,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:06,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-20 11:33:06,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:06,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:06,387 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:06,390 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-20 11:33:06,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-20 11:33:06,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:33:06,408 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-20 11:33:06,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-20 11:33:06,418 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-20 11:33:06,419 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-20 11:33:06,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:06,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:06,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:06,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:33:06,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:06,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:06,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1022033083, now seen corresponding path program 1 times [2022-11-20 11:33:06,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:06,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440290536] [2022-11-20 11:33:06,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:06,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:07,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:07,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440290536] [2022-11-20 11:33:07,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440290536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:07,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:07,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:07,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917492174] [2022-11-20 11:33:07,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:07,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:07,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:07,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:07,187 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-20 11:33:07,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:07,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:07,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-20 11:33:07,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:08,140 INFO L130 PetriNetUnfolder]: 826/2178 cut-off events. [2022-11-20 11:33:08,140 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:33:08,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3652 conditions, 2178 events. 826/2178 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 14521 event pairs, 825 based on Foata normal form. 0/2036 useless extension candidates. Maximal degree in co-relation 3590. Up to 1457 conditions per place. [2022-11-20 11:33:08,155 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-20 11:33:08,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-20 11:33:08,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-20 11:33:08,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-20 11:33:08,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-20 11:33:08,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-20 11:33:08,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:08,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-20 11:33:08,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:08,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:08,169 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:08,170 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-20 11:33:08,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-20 11:33:08,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:33:08,177 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-20 11:33:08,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-20 11:33:08,178 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-20 11:33:08,178 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-20 11:33:08,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:08,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:08,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:08,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:33:08,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:08,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:08,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1828756419, now seen corresponding path program 1 times [2022-11-20 11:33:08,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:08,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064124990] [2022-11-20 11:33:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:08,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:08,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:08,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064124990] [2022-11-20 11:33:08,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064124990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:08,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:08,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:08,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712781019] [2022-11-20 11:33:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:08,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:08,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:08,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:08,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:08,952 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-20 11:33:08,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:08,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:08,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-20 11:33:08,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:10,293 INFO L130 PetriNetUnfolder]: 1102/2630 cut-off events. [2022-11-20 11:33:10,293 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:33:10,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4569 conditions, 2630 events. 1102/2630 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 17578 event pairs, 903 based on Foata normal form. 0/2490 useless extension candidates. Maximal degree in co-relation 4496. Up to 1827 conditions per place. [2022-11-20 11:33:10,314 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-20 11:33:10,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-20 11:33:10,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-20 11:33:10,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-20 11:33:10,321 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-20 11:33:10,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-20 11:33:10,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:10,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-20 11:33:10,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:10,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:10,331 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:10,331 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-20 11:33:10,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-20 11:33:10,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:33:10,338 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-20 11:33:10,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-20 11:33:10,345 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-20 11:33:10,346 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-20 11:33:10,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:10,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:10,347 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] [2022-11-20 11:33:10,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:33:10,348 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:10,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:10,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1585514794, now seen corresponding path program 1 times [2022-11-20 11:33:10,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:10,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186317281] [2022-11-20 11:33:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:10,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:10,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:10,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186317281] [2022-11-20 11:33:10,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186317281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:10,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:10,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:10,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413147027] [2022-11-20 11:33:10,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:10,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:33:10,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:33:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:33:10,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-20 11:33:10,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:10,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:10,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-20 11:33:10,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:11,215 INFO L130 PetriNetUnfolder]: 533/2101 cut-off events. [2022-11-20 11:33:11,215 INFO L131 PetriNetUnfolder]: For 561/609 co-relation queries the response was YES. [2022-11-20 11:33:11,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3827 conditions, 2101 events. 533/2101 cut-off events. For 561/609 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 14595 event pairs, 348 based on Foata normal form. 0/1991 useless extension candidates. Maximal degree in co-relation 2605. Up to 738 conditions per place. [2022-11-20 11:33:11,235 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-20 11:33:11,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-20 11:33:11,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-20 11:33:11,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-20 11:33:11,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-20 11:33:11,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-20 11:33:11,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:11,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-20 11:33:11,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:11,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:11,255 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:11,256 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-20 11:33:11,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-20 11:33:11,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:33:11,271 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-20 11:33:11,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-20 11:33:11,274 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-20 11:33:11,274 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-20 11:33:11,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:11,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:11,276 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:11,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:33:11,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:11,277 INFO L85 PathProgramCache]: Analyzing trace with hash 523906389, now seen corresponding path program 1 times [2022-11-20 11:33:11,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:11,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575373423] [2022-11-20 11:33:11,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:11,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:11,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:11,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575373423] [2022-11-20 11:33:11,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575373423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:11,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:11,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657967113] [2022-11-20 11:33:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:11,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:11,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:11,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:11,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-20 11:33:11,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:11,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:11,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-20 11:33:11,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:13,327 INFO L130 PetriNetUnfolder]: 1233/2876 cut-off events. [2022-11-20 11:33:13,327 INFO L131 PetriNetUnfolder]: For 919/967 co-relation queries the response was YES. [2022-11-20 11:33:13,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6739 conditions, 2876 events. 1233/2876 cut-off events. For 919/967 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 18588 event pairs, 837 based on Foata normal form. 0/2761 useless extension candidates. Maximal degree in co-relation 6636. Up to 2032 conditions per place. [2022-11-20 11:33:13,354 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-20 11:33:13,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-20 11:33:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-20 11:33:13,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-20 11:33:13,359 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-20 11:33:13,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-20 11:33:13,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:13,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-20 11:33:13,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:13,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:13,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:13,367 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-20 11:33:13,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-20 11:33:13,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:33:13,379 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-20 11:33:13,380 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-20 11:33:13,383 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-20 11:33:13,383 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-20 11:33:13,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:13,384 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:13,384 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] [2022-11-20 11:33:13,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:33:13,385 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:13,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1879858362, now seen corresponding path program 1 times [2022-11-20 11:33:13,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:13,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184327399] [2022-11-20 11:33:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:14,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:14,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184327399] [2022-11-20 11:33:14,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184327399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:14,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:14,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:14,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88745078] [2022-11-20 11:33:14,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:14,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:14,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:14,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:14,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:14,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-20 11:33:14,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:14,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:14,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-20 11:33:14,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:15,821 INFO L130 PetriNetUnfolder]: 1434/3383 cut-off events. [2022-11-20 11:33:15,822 INFO L131 PetriNetUnfolder]: For 2465/2561 co-relation queries the response was YES. [2022-11-20 11:33:15,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9544 conditions, 3383 events. 1434/3383 cut-off events. For 2465/2561 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 22270 event pairs, 638 based on Foata normal form. 0/3287 useless extension candidates. Maximal degree in co-relation 8176. Up to 2134 conditions per place. [2022-11-20 11:33:15,863 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 146 selfloop transitions, 26 changer transitions 0/303 dead transitions. [2022-11-20 11:33:15,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 303 transitions, 1412 flow [2022-11-20 11:33:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-20 11:33:15,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-20 11:33:15,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-20 11:33:15,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-20 11:33:15,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:15,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-20 11:33:15,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:15,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:15,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:15,878 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 976 transitions. [2022-11-20 11:33:15,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 303 transitions, 1412 flow [2022-11-20 11:33:15,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 303 transitions, 1364 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-20 11:33:15,901 INFO L231 Difference]: Finished difference. Result has 245 places, 288 transitions, 1082 flow [2022-11-20 11:33:15,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=245, PETRI_TRANSITIONS=288} [2022-11-20 11:33:15,905 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 0 predicate places. [2022-11-20 11:33:15,905 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 288 transitions, 1082 flow [2022-11-20 11:33:15,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:15,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:15,906 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] [2022-11-20 11:33:15,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:33:15,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:15,908 INFO L85 PathProgramCache]: Analyzing trace with hash 148556689, now seen corresponding path program 1 times [2022-11-20 11:33:15,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:15,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857696843] [2022-11-20 11:33:15,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:15,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:16,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:16,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857696843] [2022-11-20 11:33:16,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857696843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:16,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:16,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:16,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068282580] [2022-11-20 11:33:16,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:16,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:16,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-20 11:33:16,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 288 transitions, 1082 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:16,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:16,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-20 11:33:16,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:18,370 INFO L130 PetriNetUnfolder]: 1431/3530 cut-off events. [2022-11-20 11:33:18,371 INFO L131 PetriNetUnfolder]: For 4176/4328 co-relation queries the response was YES. [2022-11-20 11:33:18,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10875 conditions, 3530 events. 1431/3530 cut-off events. For 4176/4328 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 23607 event pairs, 616 based on Foata normal form. 0/3435 useless extension candidates. Maximal degree in co-relation 8433. Up to 2288 conditions per place. [2022-11-20 11:33:18,421 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 177 selfloop transitions, 22 changer transitions 0/336 dead transitions. [2022-11-20 11:33:18,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 336 transitions, 1730 flow [2022-11-20 11:33:18,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1029 transitions. [2022-11-20 11:33:18,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.694331983805668 [2022-11-20 11:33:18,427 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1029 transitions. [2022-11-20 11:33:18,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1029 transitions. [2022-11-20 11:33:18,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:18,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1029 transitions. [2022-11-20 11:33:18,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,436 INFO L175 Difference]: Start difference. First operand has 245 places, 288 transitions, 1082 flow. Second operand 6 states and 1029 transitions. [2022-11-20 11:33:18,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 336 transitions, 1730 flow [2022-11-20 11:33:18,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 336 transitions, 1730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:33:18,455 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1336 flow [2022-11-20 11:33:18,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-20 11:33:18,456 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-20 11:33:18,457 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1336 flow [2022-11-20 11:33:18,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:18,458 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] [2022-11-20 11:33:18,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:33:18,458 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:18,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1768853339, now seen corresponding path program 1 times [2022-11-20 11:33:18,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:18,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738493365] [2022-11-20 11:33:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:18,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:18,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738493365] [2022-11-20 11:33:18,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738493365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:18,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:18,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:18,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610395747] [2022-11-20 11:33:18,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:18,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:33:18,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:18,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:33:18,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:33:18,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-20 11:33:18,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1336 flow. Second operand has 5 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:18,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-20 11:33:18,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:19,314 INFO L130 PetriNetUnfolder]: 381/1324 cut-off events. [2022-11-20 11:33:19,314 INFO L131 PetriNetUnfolder]: For 2876/3020 co-relation queries the response was YES. [2022-11-20 11:33:19,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3852 conditions, 1324 events. 381/1324 cut-off events. For 2876/3020 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 7557 event pairs, 111 based on Foata normal form. 16/1310 useless extension candidates. Maximal degree in co-relation 3752. Up to 419 conditions per place. [2022-11-20 11:33:19,329 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 65 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-20 11:33:19,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1162 flow [2022-11-20 11:33:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:33:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-20 11:33:19,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-20 11:33:19,334 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-20 11:33:19,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-20 11:33:19,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:19,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-20 11:33:19,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:19,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:19,345 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:19,346 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1336 flow. Second operand 6 states and 1278 transitions. [2022-11-20 11:33:19,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1162 flow [2022-11-20 11:33:19,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1066 flow, removed 15 selfloop flow, removed 24 redundant places. [2022-11-20 11:33:19,360 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 727 flow [2022-11-20 11:33:19,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-20 11:33:19,364 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-20 11:33:19,365 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 727 flow [2022-11-20 11:33:19,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:19,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:19,366 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] [2022-11-20 11:33:19,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:33:19,367 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:19,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:19,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1486266262, now seen corresponding path program 1 times [2022-11-20 11:33:19,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:19,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840232660] [2022-11-20 11:33:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:21,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:21,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840232660] [2022-11-20 11:33:21,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840232660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:21,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:21,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:33:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43333468] [2022-11-20 11:33:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:21,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:33:21,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:21,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:33:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:33:21,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:33:21,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 727 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:21,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:21,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:33:21,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:28,100 INFO L130 PetriNetUnfolder]: 1512/3516 cut-off events. [2022-11-20 11:33:28,100 INFO L131 PetriNetUnfolder]: For 5723/5723 co-relation queries the response was YES. [2022-11-20 11:33:28,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 3516 events. 1512/3516 cut-off events. For 5723/5723 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 22392 event pairs, 708 based on Foata normal form. 8/3442 useless extension candidates. Maximal degree in co-relation 10581. Up to 1690 conditions per place. [2022-11-20 11:33:28,137 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 225 selfloop transitions, 107 changer transitions 0/443 dead transitions. [2022-11-20 11:33:28,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 443 transitions, 2439 flow [2022-11-20 11:33:28,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:33:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:33:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3876 transitions. [2022-11-20 11:33:28,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5604395604395604 [2022-11-20 11:33:28,151 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3876 transitions. [2022-11-20 11:33:28,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3876 transitions. [2022-11-20 11:33:28,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:28,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3876 transitions. [2022-11-20 11:33:28,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 138.42857142857142) internal successors, (3876), 28 states have internal predecessors, (3876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:28,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 247.0) internal successors, (7163), 29 states have internal predecessors, (7163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:28,183 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 247.0) internal successors, (7163), 29 states have internal predecessors, (7163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:28,183 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 727 flow. Second operand 28 states and 3876 transitions. [2022-11-20 11:33:28,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 443 transitions, 2439 flow [2022-11-20 11:33:28,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 443 transitions, 2411 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-20 11:33:28,235 INFO L231 Difference]: Finished difference. Result has 270 places, 309 transitions, 1716 flow [2022-11-20 11:33:28,236 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1716, PETRI_PLACES=270, PETRI_TRANSITIONS=309} [2022-11-20 11:33:28,239 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 25 predicate places. [2022-11-20 11:33:28,239 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 309 transitions, 1716 flow [2022-11-20 11:33:28,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:28,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:28,262 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] [2022-11-20 11:33:28,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:33:28,263 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:28,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:28,264 INFO L85 PathProgramCache]: Analyzing trace with hash -835602740, now seen corresponding path program 2 times [2022-11-20 11:33:28,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:28,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203783647] [2022-11-20 11:33:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:28,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:32,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:32,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203783647] [2022-11-20 11:33:32,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203783647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:32,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:32,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:33:32,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720188857] [2022-11-20 11:33:32,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:32,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:33:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:32,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:33:32,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:33:32,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:33:32,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 309 transitions, 1716 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:32,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:32,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:33:32,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:35,780 INFO L130 PetriNetUnfolder]: 1628/3288 cut-off events. [2022-11-20 11:33:35,780 INFO L131 PetriNetUnfolder]: For 12052/12136 co-relation queries the response was YES. [2022-11-20 11:33:35,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13722 conditions, 3288 events. 1628/3288 cut-off events. For 12052/12136 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 19398 event pairs, 123 based on Foata normal form. 8/3233 useless extension candidates. Maximal degree in co-relation 13430. Up to 1349 conditions per place. [2022-11-20 11:33:35,823 INFO L137 encePairwiseOnDemand]: 228/247 looper letters, 361 selfloop transitions, 96 changer transitions 0/568 dead transitions. [2022-11-20 11:33:35,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 568 transitions, 4427 flow [2022-11-20 11:33:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:33:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:33:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-20 11:33:35,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-20 11:33:35,835 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-20 11:33:35,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-20 11:33:35,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:35,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-20 11:33:35,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:35,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:35,860 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:35,860 INFO L175 Difference]: Start difference. First operand has 270 places, 309 transitions, 1716 flow. Second operand 20 states and 2821 transitions. [2022-11-20 11:33:35,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 568 transitions, 4427 flow [2022-11-20 11:33:35,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 568 transitions, 4348 flow, removed 34 selfloop flow, removed 6 redundant places. [2022-11-20 11:33:35,934 INFO L231 Difference]: Finished difference. Result has 292 places, 372 transitions, 2728 flow [2022-11-20 11:33:35,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2728, PETRI_PLACES=292, PETRI_TRANSITIONS=372} [2022-11-20 11:33:35,935 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 47 predicate places. [2022-11-20 11:33:35,936 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 372 transitions, 2728 flow [2022-11-20 11:33:35,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:35,937 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:35,937 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] [2022-11-20 11:33:35,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:33:35,938 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:35,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:35,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1936868808, now seen corresponding path program 3 times [2022-11-20 11:33:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:35,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054636881] [2022-11-20 11:33:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:35,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:38,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:38,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054636881] [2022-11-20 11:33:38,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054636881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:38,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:38,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:33:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90586777] [2022-11-20 11:33:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:33:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:33:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:33:38,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:33:38,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 372 transitions, 2728 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:38,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:38,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:33:38,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:42,865 INFO L130 PetriNetUnfolder]: 1725/3422 cut-off events. [2022-11-20 11:33:42,866 INFO L131 PetriNetUnfolder]: For 23489/23594 co-relation queries the response was YES. [2022-11-20 11:33:42,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17448 conditions, 3422 events. 1725/3422 cut-off events. For 23489/23594 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 20237 event pairs, 99 based on Foata normal form. 8/3364 useless extension candidates. Maximal degree in co-relation 17147. Up to 2107 conditions per place. [2022-11-20 11:33:42,908 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 326 selfloop transitions, 112 changer transitions 0/549 dead transitions. [2022-11-20 11:33:42,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 549 transitions, 4963 flow [2022-11-20 11:33:42,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:33:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:33:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2414 transitions. [2022-11-20 11:33:42,916 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5748987854251012 [2022-11-20 11:33:42,917 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2414 transitions. [2022-11-20 11:33:42,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2414 transitions. [2022-11-20 11:33:42,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:42,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2414 transitions. [2022-11-20 11:33:42,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.0) internal successors, (2414), 17 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:42,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:42,936 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:42,937 INFO L175 Difference]: Start difference. First operand has 292 places, 372 transitions, 2728 flow. Second operand 17 states and 2414 transitions. [2022-11-20 11:33:42,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 549 transitions, 4963 flow [2022-11-20 11:33:43,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 549 transitions, 4822 flow, removed 39 selfloop flow, removed 9 redundant places. [2022-11-20 11:33:43,089 INFO L231 Difference]: Finished difference. Result has 307 places, 426 transitions, 3933 flow [2022-11-20 11:33:43,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2625, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3933, PETRI_PLACES=307, PETRI_TRANSITIONS=426} [2022-11-20 11:33:43,090 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 62 predicate places. [2022-11-20 11:33:43,091 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 426 transitions, 3933 flow [2022-11-20 11:33:43,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:43,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:43,092 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] [2022-11-20 11:33:43,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:33:43,093 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:43,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:43,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1696890546, now seen corresponding path program 4 times [2022-11-20 11:33:43,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:43,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818569570] [2022-11-20 11:33:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:43,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:46,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818569570] [2022-11-20 11:33:46,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818569570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:46,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:46,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:33:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375734611] [2022-11-20 11:33:46,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:46,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:33:46,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:33:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:33:46,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:33:46,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 426 transitions, 3933 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:46,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:46,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:33:46,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:50,477 INFO L130 PetriNetUnfolder]: 2005/4221 cut-off events. [2022-11-20 11:33:50,478 INFO L131 PetriNetUnfolder]: For 38370/38674 co-relation queries the response was YES. [2022-11-20 11:33:50,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22919 conditions, 4221 events. 2005/4221 cut-off events. For 38370/38674 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 26776 event pairs, 483 based on Foata normal form. 8/4131 useless extension candidates. Maximal degree in co-relation 22610. Up to 1863 conditions per place. [2022-11-20 11:33:50,538 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 391 selfloop transitions, 170 changer transitions 0/672 dead transitions. [2022-11-20 11:33:50,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 672 transitions, 7645 flow [2022-11-20 11:33:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:33:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:33:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-20 11:33:50,546 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-20 11:33:50,546 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-20 11:33:50,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-20 11:33:50,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:50,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-20 11:33:50,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:50,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:50,569 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:50,570 INFO L175 Difference]: Start difference. First operand has 307 places, 426 transitions, 3933 flow. Second operand 20 states and 2823 transitions. [2022-11-20 11:33:50,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 672 transitions, 7645 flow [2022-11-20 11:33:50,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 672 transitions, 7488 flow, removed 63 selfloop flow, removed 9 redundant places. [2022-11-20 11:33:50,788 INFO L231 Difference]: Finished difference. Result has 324 places, 499 transitions, 5845 flow [2022-11-20 11:33:50,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3796, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5845, PETRI_PLACES=324, PETRI_TRANSITIONS=499} [2022-11-20 11:33:50,790 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-20 11:33:50,790 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 499 transitions, 5845 flow [2022-11-20 11:33:50,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:50,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:50,792 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] [2022-11-20 11:33:50,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:33:50,792 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1167389018, now seen corresponding path program 5 times [2022-11-20 11:33:50,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:50,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225331996] [2022-11-20 11:33:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:53,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:53,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225331996] [2022-11-20 11:33:53,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225331996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:53,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:53,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:33:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573052021] [2022-11-20 11:33:53,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:53,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:33:53,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:53,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:33:53,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:33:53,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:33:53,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 499 transitions, 5845 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:53,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:53,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:33:53,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:58,510 INFO L130 PetriNetUnfolder]: 2164/4608 cut-off events. [2022-11-20 11:33:58,511 INFO L131 PetriNetUnfolder]: For 62813/62897 co-relation queries the response was YES. [2022-11-20 11:33:58,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28520 conditions, 4608 events. 2164/4608 cut-off events. For 62813/62897 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30035 event pairs, 692 based on Foata normal form. 8/4530 useless extension candidates. Maximal degree in co-relation 28205. Up to 2493 conditions per place. [2022-11-20 11:33:58,573 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 367 selfloop transitions, 200 changer transitions 0/678 dead transitions. [2022-11-20 11:33:58,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 678 transitions, 8747 flow [2022-11-20 11:33:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:33:58,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:33:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2553 transitions. [2022-11-20 11:33:58,585 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5742240215924427 [2022-11-20 11:33:58,585 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2553 transitions. [2022-11-20 11:33:58,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2553 transitions. [2022-11-20 11:33:58,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:58,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2553 transitions. [2022-11-20 11:33:58,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.83333333333334) internal successors, (2553), 18 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:58,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:58,601 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:58,602 INFO L175 Difference]: Start difference. First operand has 324 places, 499 transitions, 5845 flow. Second operand 18 states and 2553 transitions. [2022-11-20 11:33:58,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 678 transitions, 8747 flow [2022-11-20 11:33:58,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 678 transitions, 8432 flow, removed 101 selfloop flow, removed 12 redundant places. [2022-11-20 11:33:58,966 INFO L231 Difference]: Finished difference. Result has 334 places, 543 transitions, 7307 flow [2022-11-20 11:33:58,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=5579, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7307, PETRI_PLACES=334, PETRI_TRANSITIONS=543} [2022-11-20 11:33:58,968 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 89 predicate places. [2022-11-20 11:33:58,968 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 543 transitions, 7307 flow [2022-11-20 11:33:58,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:58,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:58,970 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] [2022-11-20 11:33:58,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:33:58,970 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1228355224, now seen corresponding path program 6 times [2022-11-20 11:33:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:58,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772493313] [2022-11-20 11:33:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:01,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:01,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772493313] [2022-11-20 11:34:01,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772493313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:01,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:01,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:01,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412413638] [2022-11-20 11:34:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:01,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:01,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:01,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:01,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:01,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:01,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 543 transitions, 7307 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:01,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:01,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:01,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:06,032 INFO L130 PetriNetUnfolder]: 2238/4591 cut-off events. [2022-11-20 11:34:06,032 INFO L131 PetriNetUnfolder]: For 79829/80237 co-relation queries the response was YES. [2022-11-20 11:34:06,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30960 conditions, 4591 events. 2238/4591 cut-off events. For 79829/80237 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 29359 event pairs, 495 based on Foata normal form. 8/4506 useless extension candidates. Maximal degree in co-relation 30640. Up to 2136 conditions per place. [2022-11-20 11:34:06,116 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 433 selfloop transitions, 207 changer transitions 0/751 dead transitions. [2022-11-20 11:34:06,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 751 transitions, 10954 flow [2022-11-20 11:34:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:34:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:34:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-20 11:34:06,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-20 11:34:06,125 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-20 11:34:06,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-20 11:34:06,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:06,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-20 11:34:06,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:06,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:06,143 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:06,143 INFO L175 Difference]: Start difference. First operand has 334 places, 543 transitions, 7307 flow. Second operand 20 states and 2823 transitions. [2022-11-20 11:34:06,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 751 transitions, 10954 flow [2022-11-20 11:34:06,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 751 transitions, 10682 flow, removed 85 selfloop flow, removed 10 redundant places. [2022-11-20 11:34:06,560 INFO L231 Difference]: Finished difference. Result has 349 places, 575 transitions, 8420 flow [2022-11-20 11:34:06,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=7101, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8420, PETRI_PLACES=349, PETRI_TRANSITIONS=575} [2022-11-20 11:34:06,562 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-20 11:34:06,562 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 575 transitions, 8420 flow [2022-11-20 11:34:06,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:06,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:34:06,564 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] [2022-11-20 11:34:06,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:34:06,564 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:34:06,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash 55440128, now seen corresponding path program 7 times [2022-11-20 11:34:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:06,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710040217] [2022-11-20 11:34:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:06,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:09,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:09,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710040217] [2022-11-20 11:34:09,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710040217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:09,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:09,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:09,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166681719] [2022-11-20 11:34:09,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:09,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:09,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:09,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:09,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 575 transitions, 8420 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:09,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:09,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:09,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:13,775 INFO L130 PetriNetUnfolder]: 2462/5186 cut-off events. [2022-11-20 11:34:13,776 INFO L131 PetriNetUnfolder]: For 96041/96125 co-relation queries the response was YES. [2022-11-20 11:34:13,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36861 conditions, 5186 events. 2462/5186 cut-off events. For 96041/96125 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 34776 event pairs, 730 based on Foata normal form. 8/5108 useless extension candidates. Maximal degree in co-relation 36535. Up to 2775 conditions per place. [2022-11-20 11:34:13,845 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 398 selfloop transitions, 270 changer transitions 0/779 dead transitions. [2022-11-20 11:34:13,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 779 transitions, 12540 flow [2022-11-20 11:34:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:34:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:34:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2552 transitions. [2022-11-20 11:34:13,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5739991003148898 [2022-11-20 11:34:13,852 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2552 transitions. [2022-11-20 11:34:13,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2552 transitions. [2022-11-20 11:34:13,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:13,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2552 transitions. [2022-11-20 11:34:13,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.77777777777777) internal successors, (2552), 18 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:13,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:13,869 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:13,869 INFO L175 Difference]: Start difference. First operand has 349 places, 575 transitions, 8420 flow. Second operand 18 states and 2552 transitions. [2022-11-20 11:34:13,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 779 transitions, 12540 flow [2022-11-20 11:34:14,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 779 transitions, 12342 flow, removed 39 selfloop flow, removed 12 redundant places. [2022-11-20 11:34:14,335 INFO L231 Difference]: Finished difference. Result has 361 places, 655 transitions, 11409 flow [2022-11-20 11:34:14,336 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8240, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11409, PETRI_PLACES=361, PETRI_TRANSITIONS=655} [2022-11-20 11:34:14,336 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 116 predicate places. [2022-11-20 11:34:14,337 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 655 transitions, 11409 flow [2022-11-20 11:34:14,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:14,337 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:34:14,338 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] [2022-11-20 11:34:14,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:34:14,338 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:34:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:14,338 INFO L85 PathProgramCache]: Analyzing trace with hash 122936360, now seen corresponding path program 8 times [2022-11-20 11:34:14,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:14,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956887281] [2022-11-20 11:34:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:14,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:16,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956887281] [2022-11-20 11:34:16,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956887281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:16,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:16,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453110947] [2022-11-20 11:34:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:16,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:16,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:16,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:16,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 655 transitions, 11409 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:16,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:16,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:16,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:21,433 INFO L130 PetriNetUnfolder]: 2508/5077 cut-off events. [2022-11-20 11:34:21,434 INFO L131 PetriNetUnfolder]: For 120441/120567 co-relation queries the response was YES. [2022-11-20 11:34:21,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39957 conditions, 5077 events. 2508/5077 cut-off events. For 120441/120567 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 33216 event pairs, 274 based on Foata normal form. 8/5003 useless extension candidates. Maximal degree in co-relation 39624. Up to 2486 conditions per place. [2022-11-20 11:34:21,518 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 475 selfloop transitions, 262 changer transitions 0/848 dead transitions. [2022-11-20 11:34:21,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 848 transitions, 15279 flow [2022-11-20 11:34:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:34:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:34:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2686 transitions. [2022-11-20 11:34:21,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5723417856381845 [2022-11-20 11:34:21,526 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2686 transitions. [2022-11-20 11:34:21,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2686 transitions. [2022-11-20 11:34:21,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:21,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2686 transitions. [2022-11-20 11:34:21,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.3684210526316) internal successors, (2686), 19 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:21,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:21,541 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:21,542 INFO L175 Difference]: Start difference. First operand has 361 places, 655 transitions, 11409 flow. Second operand 19 states and 2686 transitions. [2022-11-20 11:34:21,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 848 transitions, 15279 flow [2022-11-20 11:34:22,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 848 transitions, 14715 flow, removed 256 selfloop flow, removed 9 redundant places. [2022-11-20 11:34:22,158 INFO L231 Difference]: Finished difference. Result has 375 places, 674 transitions, 12452 flow [2022-11-20 11:34:22,159 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=10982, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12452, PETRI_PLACES=375, PETRI_TRANSITIONS=674} [2022-11-20 11:34:22,159 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 130 predicate places. [2022-11-20 11:34:22,159 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 674 transitions, 12452 flow [2022-11-20 11:34:22,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:22,160 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:34:22,161 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] [2022-11-20 11:34:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:34:22,161 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:34:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1031504102, now seen corresponding path program 9 times [2022-11-20 11:34:22,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:22,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944188371] [2022-11-20 11:34:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:22,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:24,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:24,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944188371] [2022-11-20 11:34:24,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944188371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:24,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:24,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:24,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280000669] [2022-11-20 11:34:24,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:24,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:24,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:24,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:24,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:24,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:24,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 674 transitions, 12452 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:24,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:24,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:24,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:28,935 INFO L130 PetriNetUnfolder]: 2746/5382 cut-off events. [2022-11-20 11:34:28,936 INFO L131 PetriNetUnfolder]: For 142754/142838 co-relation queries the response was YES. [2022-11-20 11:34:28,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45718 conditions, 5382 events. 2746/5382 cut-off events. For 142754/142838 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35093 event pairs, 246 based on Foata normal form. 8/5318 useless extension candidates. Maximal degree in co-relation 45380. Up to 3188 conditions per place. [2022-11-20 11:34:29,004 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 479 selfloop transitions, 293 changer transitions 0/883 dead transitions. [2022-11-20 11:34:29,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 883 transitions, 17037 flow [2022-11-20 11:34:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:34:29,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:34:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2551 transitions. [2022-11-20 11:34:29,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573774179037337 [2022-11-20 11:34:29,010 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2551 transitions. [2022-11-20 11:34:29,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2551 transitions. [2022-11-20 11:34:29,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:29,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2551 transitions. [2022-11-20 11:34:29,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.72222222222223) internal successors, (2551), 18 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:29,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:29,026 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:29,026 INFO L175 Difference]: Start difference. First operand has 375 places, 674 transitions, 12452 flow. Second operand 18 states and 2551 transitions. [2022-11-20 11:34:29,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 883 transitions, 17037 flow [2022-11-20 11:34:29,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 883 transitions, 16833 flow, removed 40 selfloop flow, removed 12 redundant places. [2022-11-20 11:34:29,779 INFO L231 Difference]: Finished difference. Result has 387 places, 740 transitions, 15448 flow [2022-11-20 11:34:29,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12254, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15448, PETRI_PLACES=387, PETRI_TRANSITIONS=740} [2022-11-20 11:34:29,780 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 142 predicate places. [2022-11-20 11:34:29,780 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 740 transitions, 15448 flow [2022-11-20 11:34:29,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:29,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:34:29,781 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] [2022-11-20 11:34:29,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:34:29,781 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:34:29,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:29,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1635161404, now seen corresponding path program 10 times [2022-11-20 11:34:29,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242777975] [2022-11-20 11:34:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:29,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:32,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:32,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242777975] [2022-11-20 11:34:32,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242777975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:32,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:32,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93224625] [2022-11-20 11:34:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:32,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:32,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:32,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 740 transitions, 15448 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:32,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:32,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:32,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:38,681 INFO L130 PetriNetUnfolder]: 2954/5719 cut-off events. [2022-11-20 11:34:38,682 INFO L131 PetriNetUnfolder]: For 187764/187869 co-relation queries the response was YES. [2022-11-20 11:34:38,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52734 conditions, 5719 events. 2954/5719 cut-off events. For 187764/187869 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 37767 event pairs, 225 based on Foata normal form. 8/5661 useless extension candidates. Maximal degree in co-relation 52389. Up to 3015 conditions per place. [2022-11-20 11:34:38,762 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 439 selfloop transitions, 425 changer transitions 0/975 dead transitions. [2022-11-20 11:34:38,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 975 transitions, 21235 flow [2022-11-20 11:34:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:34:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:34:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-20 11:34:38,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-20 11:34:38,769 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-20 11:34:38,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-20 11:34:38,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:38,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-20 11:34:38,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:38,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:38,785 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:38,785 INFO L175 Difference]: Start difference. First operand has 387 places, 740 transitions, 15448 flow. Second operand 20 states and 2814 transitions. [2022-11-20 11:34:38,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 975 transitions, 21235 flow [2022-11-20 11:34:39,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 975 transitions, 21078 flow, removed 50 selfloop flow, removed 10 redundant places. [2022-11-20 11:34:39,773 INFO L231 Difference]: Finished difference. Result has 406 places, 843 transitions, 19876 flow [2022-11-20 11:34:39,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=15318, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19876, PETRI_PLACES=406, PETRI_TRANSITIONS=843} [2022-11-20 11:34:39,775 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 161 predicate places. [2022-11-20 11:34:39,775 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 843 transitions, 19876 flow [2022-11-20 11:34:39,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:39,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:34:39,775 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] [2022-11-20 11:34:39,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:34:39,776 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:34:39,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1717714866, now seen corresponding path program 11 times [2022-11-20 11:34:39,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:39,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644212086] [2022-11-20 11:34:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:39,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644212086] [2022-11-20 11:34:41,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644212086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:41,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:41,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:41,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363231918] [2022-11-20 11:34:41,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:41,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:41,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:41,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:41,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:41,694 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:41,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 843 transitions, 19876 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:41,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:41,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:41,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:47,340 INFO L130 PetriNetUnfolder]: 2958/5941 cut-off events. [2022-11-20 11:34:47,340 INFO L131 PetriNetUnfolder]: For 211186/211312 co-relation queries the response was YES. [2022-11-20 11:34:47,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56696 conditions, 5941 events. 2958/5941 cut-off events. For 211186/211312 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 40399 event pairs, 278 based on Foata normal form. 8/5867 useless extension candidates. Maximal degree in co-relation 56341. Up to 2975 conditions per place. [2022-11-20 11:34:47,840 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 569 selfloop transitions, 337 changer transitions 0/1017 dead transitions. [2022-11-20 11:34:47,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1017 transitions, 23549 flow [2022-11-20 11:34:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:34:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:34:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-20 11:34:47,847 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-20 11:34:47,847 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-20 11:34:47,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-20 11:34:47,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:47,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-20 11:34:47,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:47,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:47,863 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:47,863 INFO L175 Difference]: Start difference. First operand has 406 places, 843 transitions, 19876 flow. Second operand 20 states and 2821 transitions. [2022-11-20 11:34:47,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1017 transitions, 23549 flow [2022-11-20 11:34:49,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1017 transitions, 22977 flow, removed 273 selfloop flow, removed 8 redundant places. [2022-11-20 11:34:49,172 INFO L231 Difference]: Finished difference. Result has 421 places, 861 transitions, 20814 flow [2022-11-20 11:34:49,173 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=19324, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=843, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20814, PETRI_PLACES=421, PETRI_TRANSITIONS=861} [2022-11-20 11:34:49,174 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 176 predicate places. [2022-11-20 11:34:49,174 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 861 transitions, 20814 flow [2022-11-20 11:34:49,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:49,175 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:34:49,176 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] [2022-11-20 11:34:49,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:34:49,176 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:34:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:49,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1489991590, now seen corresponding path program 12 times [2022-11-20 11:34:49,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:49,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615974253] [2022-11-20 11:34:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:49,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:51,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:51,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615974253] [2022-11-20 11:34:51,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615974253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:51,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:51,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:34:51,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795855004] [2022-11-20 11:34:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:51,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:34:51,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:34:51,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:34:51,215 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:34:51,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 861 transitions, 20814 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:51,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:34:51,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:34:51,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:34:58,503 INFO L130 PetriNetUnfolder]: 3061/6345 cut-off events. [2022-11-20 11:34:58,503 INFO L131 PetriNetUnfolder]: For 229843/229969 co-relation queries the response was YES. [2022-11-20 11:34:58,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60546 conditions, 6345 events. 3061/6345 cut-off events. For 229843/229969 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 44408 event pairs, 706 based on Foata normal form. 8/6264 useless extension candidates. Maximal degree in co-relation 60187. Up to 3548 conditions per place. [2022-11-20 11:34:58,607 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 567 selfloop transitions, 358 changer transitions 0/1036 dead transitions. [2022-11-20 11:34:58,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1036 transitions, 24935 flow [2022-11-20 11:34:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:34:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:34:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-20 11:34:58,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-20 11:34:58,619 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-20 11:34:58,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-20 11:34:58,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:34:58,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-20 11:34:58,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:58,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:58,654 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:58,654 INFO L175 Difference]: Start difference. First operand has 421 places, 861 transitions, 20814 flow. Second operand 20 states and 2818 transitions. [2022-11-20 11:34:58,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1036 transitions, 24935 flow [2022-11-20 11:35:00,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 1036 transitions, 24746 flow, removed 35 selfloop flow, removed 13 redundant places. [2022-11-20 11:35:00,183 INFO L231 Difference]: Finished difference. Result has 434 places, 900 transitions, 23424 flow [2022-11-20 11:35:00,185 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20625, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=861, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=23424, PETRI_PLACES=434, PETRI_TRANSITIONS=900} [2022-11-20 11:35:00,185 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 189 predicate places. [2022-11-20 11:35:00,186 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 900 transitions, 23424 flow [2022-11-20 11:35:00,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:00,186 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:35:00,187 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] [2022-11-20 11:35:00,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:35:00,187 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:35:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash 775787818, now seen corresponding path program 13 times [2022-11-20 11:35:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:35:00,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298326466] [2022-11-20 11:35:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:00,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:35:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:35:02,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:35:02,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298326466] [2022-11-20 11:35:02,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298326466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:02,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:02,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:35:02,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714536349] [2022-11-20 11:35:02,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:02,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:35:02,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:35:02,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:35:02,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:35:02,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:35:02,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 900 transitions, 23424 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:02,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:35:02,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:35:02,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:35:09,325 INFO L130 PetriNetUnfolder]: 3228/6261 cut-off events. [2022-11-20 11:35:09,326 INFO L131 PetriNetUnfolder]: For 286199/286489 co-relation queries the response was YES. [2022-11-20 11:35:09,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67081 conditions, 6261 events. 3228/6261 cut-off events. For 286199/286489 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 42529 event pairs, 235 based on Foata normal form. 11/6231 useless extension candidates. Maximal degree in co-relation 66715. Up to 3614 conditions per place. [2022-11-20 11:35:09,422 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 582 selfloop transitions, 404 changer transitions 0/1097 dead transitions. [2022-11-20 11:35:09,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1097 transitions, 28768 flow [2022-11-20 11:35:09,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:35:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:35:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-20 11:35:09,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-20 11:35:09,427 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-20 11:35:09,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-20 11:35:09,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:35:09,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-20 11:35:09,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:09,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:09,442 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:09,442 INFO L175 Difference]: Start difference. First operand has 434 places, 900 transitions, 23424 flow. Second operand 20 states and 2818 transitions. [2022-11-20 11:35:09,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1097 transitions, 28768 flow [2022-11-20 11:35:11,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 1097 transitions, 28430 flow, removed 110 selfloop flow, removed 12 redundant places. [2022-11-20 11:35:11,499 INFO L231 Difference]: Finished difference. Result has 449 places, 964 transitions, 26846 flow [2022-11-20 11:35:11,500 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=23104, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26846, PETRI_PLACES=449, PETRI_TRANSITIONS=964} [2022-11-20 11:35:11,501 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 204 predicate places. [2022-11-20 11:35:11,501 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 964 transitions, 26846 flow [2022-11-20 11:35:11,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:11,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:35:11,502 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] [2022-11-20 11:35:11,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:35:11,503 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:35:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash -279861176, now seen corresponding path program 14 times [2022-11-20 11:35:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:35:11,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252917596] [2022-11-20 11:35:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:35:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:35:13,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:35:13,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252917596] [2022-11-20 11:35:13,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252917596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:13,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:13,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:35:13,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939202177] [2022-11-20 11:35:13,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:13,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:35:13,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:35:13,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:35:13,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:35:13,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:35:13,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 964 transitions, 26846 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:13,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:35:13,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:35:13,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:35:20,379 INFO L130 PetriNetUnfolder]: 3358/6544 cut-off events. [2022-11-20 11:35:20,379 INFO L131 PetriNetUnfolder]: For 332684/332894 co-relation queries the response was YES. [2022-11-20 11:35:20,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73749 conditions, 6544 events. 3358/6544 cut-off events. For 332684/332894 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 44857 event pairs, 259 based on Foata normal form. 10/6482 useless extension candidates. Maximal degree in co-relation 73375. Up to 3900 conditions per place. [2022-11-20 11:35:20,495 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 608 selfloop transitions, 424 changer transitions 0/1143 dead transitions. [2022-11-20 11:35:20,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1143 transitions, 31948 flow [2022-11-20 11:35:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:35:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:35:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2685 transitions. [2022-11-20 11:35:20,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5721287023226082 [2022-11-20 11:35:20,500 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2685 transitions. [2022-11-20 11:35:20,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2685 transitions. [2022-11-20 11:35:20,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:35:20,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2685 transitions. [2022-11-20 11:35:20,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.31578947368422) internal successors, (2685), 19 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:20,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:20,667 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:20,667 INFO L175 Difference]: Start difference. First operand has 449 places, 964 transitions, 26846 flow. Second operand 19 states and 2685 transitions. [2022-11-20 11:35:20,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 1143 transitions, 31948 flow [2022-11-20 11:35:23,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1143 transitions, 31370 flow, removed 271 selfloop flow, removed 9 redundant places. [2022-11-20 11:35:23,577 INFO L231 Difference]: Finished difference. Result has 465 places, 1017 transitions, 30321 flow [2022-11-20 11:35:23,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=26410, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30321, PETRI_PLACES=465, PETRI_TRANSITIONS=1017} [2022-11-20 11:35:23,579 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 220 predicate places. [2022-11-20 11:35:23,579 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 1017 transitions, 30321 flow [2022-11-20 11:35:23,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:23,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:35:23,579 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] [2022-11-20 11:35:23,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:35:23,580 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:35:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1549417170, now seen corresponding path program 15 times [2022-11-20 11:35:23,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:35:23,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056100661] [2022-11-20 11:35:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:23,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:35:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:25,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:35:25,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:35:25,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056100661] [2022-11-20 11:35:25,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056100661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:25,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:25,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:35:25,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581349900] [2022-11-20 11:35:25,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:25,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:35:25,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:35:25,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:35:25,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:35:25,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:35:25,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1017 transitions, 30321 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:25,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:35:25,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:35:25,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:35:33,132 INFO L130 PetriNetUnfolder]: 3404/6798 cut-off events. [2022-11-20 11:35:33,132 INFO L131 PetriNetUnfolder]: For 364708/364913 co-relation queries the response was YES. [2022-11-20 11:35:33,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77399 conditions, 6798 events. 3404/6798 cut-off events. For 364708/364913 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 47748 event pairs, 510 based on Foata normal form. 10/6756 useless extension candidates. Maximal degree in co-relation 77018. Up to 3942 conditions per place. [2022-11-20 11:35:33,263 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 612 selfloop transitions, 438 changer transitions 0/1161 dead transitions. [2022-11-20 11:35:33,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1161 transitions, 34049 flow [2022-11-20 11:35:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:35:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:35:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2682 transitions. [2022-11-20 11:35:33,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571489452375879 [2022-11-20 11:35:33,269 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2682 transitions. [2022-11-20 11:35:33,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2682 transitions. [2022-11-20 11:35:33,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:35:33,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2682 transitions. [2022-11-20 11:35:33,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.1578947368421) internal successors, (2682), 19 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:33,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:33,281 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:33,282 INFO L175 Difference]: Start difference. First operand has 465 places, 1017 transitions, 30321 flow. Second operand 19 states and 2682 transitions. [2022-11-20 11:35:33,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1161 transitions, 34049 flow [2022-11-20 11:35:36,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1161 transitions, 33769 flow, removed 99 selfloop flow, removed 11 redundant places. [2022-11-20 11:35:36,478 INFO L231 Difference]: Finished difference. Result has 478 places, 1039 transitions, 32524 flow [2022-11-20 11:35:36,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=30042, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32524, PETRI_PLACES=478, PETRI_TRANSITIONS=1039} [2022-11-20 11:35:36,479 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 233 predicate places. [2022-11-20 11:35:36,480 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 1039 transitions, 32524 flow [2022-11-20 11:35:36,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:36,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:35:36,480 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:35:36,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:35:36,481 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:35:36,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:36,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1517041002, now seen corresponding path program 16 times [2022-11-20 11:35:36,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:35:36,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224408914] [2022-11-20 11:35:36,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:36,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:35:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:35:38,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:35:38,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224408914] [2022-11-20 11:35:38,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224408914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:38,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:38,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:35:38,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257347493] [2022-11-20 11:35:38,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:38,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:35:38,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:35:38,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:35:38,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:35:38,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:35:38,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 1039 transitions, 32524 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:38,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:35:38,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:35:38,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:35:46,893 INFO L130 PetriNetUnfolder]: 3528/6926 cut-off events. [2022-11-20 11:35:46,893 INFO L131 PetriNetUnfolder]: For 408395/408833 co-relation queries the response was YES. [2022-11-20 11:35:46,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82579 conditions, 6926 events. 3528/6926 cut-off events. For 408395/408833 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 48345 event pairs, 482 based on Foata normal form. 14/6896 useless extension candidates. Maximal degree in co-relation 82192. Up to 3950 conditions per place. [2022-11-20 11:35:47,055 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 613 selfloop transitions, 472 changer transitions 0/1196 dead transitions. [2022-11-20 11:35:47,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1196 transitions, 36560 flow [2022-11-20 11:35:47,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:35:47,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:35:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2819 transitions. [2022-11-20 11:35:47,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706477732793522 [2022-11-20 11:35:47,062 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2819 transitions. [2022-11-20 11:35:47,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2819 transitions. [2022-11-20 11:35:47,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:35:47,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2819 transitions. [2022-11-20 11:35:47,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.95) internal successors, (2819), 20 states have internal predecessors, (2819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:47,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:47,079 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:47,079 INFO L175 Difference]: Start difference. First operand has 478 places, 1039 transitions, 32524 flow. Second operand 20 states and 2819 transitions. [2022-11-20 11:35:47,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1196 transitions, 36560 flow [2022-11-20 11:35:50,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1196 transitions, 36297 flow, removed 103 selfloop flow, removed 10 redundant places. [2022-11-20 11:35:50,873 INFO L231 Difference]: Finished difference. Result has 491 places, 1066 transitions, 34494 flow [2022-11-20 11:35:50,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=32269, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34494, PETRI_PLACES=491, PETRI_TRANSITIONS=1066} [2022-11-20 11:35:50,874 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 246 predicate places. [2022-11-20 11:35:50,875 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 1066 transitions, 34494 flow [2022-11-20 11:35:50,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:50,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:35:50,875 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] [2022-11-20 11:35:50,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:35:50,876 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:35:50,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash 350218474, now seen corresponding path program 17 times [2022-11-20 11:35:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:35:50,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248775202] [2022-11-20 11:35:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:35:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:35:52,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:35:52,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248775202] [2022-11-20 11:35:52,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248775202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:52,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:52,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:35:52,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062036406] [2022-11-20 11:35:52,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:52,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:35:52,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:35:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:35:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:35:52,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:35:52,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1066 transitions, 34494 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:35:52,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:35:52,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:35:52,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:36:00,760 INFO L130 PetriNetUnfolder]: 3532/6954 cut-off events. [2022-11-20 11:36:00,760 INFO L131 PetriNetUnfolder]: For 433325/433763 co-relation queries the response was YES. [2022-11-20 11:36:00,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85036 conditions, 6954 events. 3532/6954 cut-off events. For 433325/433763 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 48777 event pairs, 500 based on Foata normal form. 14/6924 useless extension candidates. Maximal degree in co-relation 84645. Up to 4076 conditions per place. [2022-11-20 11:36:00,901 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 637 selfloop transitions, 464 changer transitions 0/1212 dead transitions. [2022-11-20 11:36:00,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1212 transitions, 38228 flow [2022-11-20 11:36:00,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:36:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:36:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2820 transitions. [2022-11-20 11:36:00,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2022-11-20 11:36:00,906 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2820 transitions. [2022-11-20 11:36:00,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2820 transitions. [2022-11-20 11:36:00,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:36:00,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2820 transitions. [2022-11-20 11:36:01,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:01,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:01,083 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:01,084 INFO L175 Difference]: Start difference. First operand has 491 places, 1066 transitions, 34494 flow. Second operand 20 states and 2820 transitions. [2022-11-20 11:36:01,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1212 transitions, 38228 flow [2022-11-20 11:36:04,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1212 transitions, 37729 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-20 11:36:05,002 INFO L231 Difference]: Finished difference. Result has 502 places, 1086 transitions, 36010 flow [2022-11-20 11:36:05,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=34079, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=36010, PETRI_PLACES=502, PETRI_TRANSITIONS=1086} [2022-11-20 11:36:05,003 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 257 predicate places. [2022-11-20 11:36:05,003 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1086 transitions, 36010 flow [2022-11-20 11:36:05,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:05,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:36:05,004 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] [2022-11-20 11:36:05,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:36:05,004 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:36:05,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:05,005 INFO L85 PathProgramCache]: Analyzing trace with hash -486107910, now seen corresponding path program 18 times [2022-11-20 11:36:05,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:05,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384554141] [2022-11-20 11:36:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:05,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:06,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:06,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384554141] [2022-11-20 11:36:06,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384554141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:06,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:06,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:36:06,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731308336] [2022-11-20 11:36:06,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:06,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:36:06,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:36:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:36:06,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:36:06,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1086 transitions, 36010 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:06,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:36:06,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:36:06,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:36:15,392 INFO L130 PetriNetUnfolder]: 3606/7080 cut-off events. [2022-11-20 11:36:15,392 INFO L131 PetriNetUnfolder]: For 453320/453758 co-relation queries the response was YES. [2022-11-20 11:36:15,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88814 conditions, 7080 events. 3606/7080 cut-off events. For 453320/453758 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 49771 event pairs, 500 based on Foata normal form. 14/7050 useless extension candidates. Maximal degree in co-relation 88419. Up to 4088 conditions per place. [2022-11-20 11:36:15,534 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 653 selfloop transitions, 482 changer transitions 0/1246 dead transitions. [2022-11-20 11:36:15,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1246 transitions, 40486 flow [2022-11-20 11:36:15,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:36:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:36:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-20 11:36:15,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-20 11:36:15,540 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-20 11:36:15,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-20 11:36:15,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:36:15,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-20 11:36:15,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:15,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:15,552 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:15,552 INFO L175 Difference]: Start difference. First operand has 502 places, 1086 transitions, 36010 flow. Second operand 20 states and 2822 transitions. [2022-11-20 11:36:15,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1246 transitions, 40486 flow [2022-11-20 11:36:19,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 1246 transitions, 40206 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-20 11:36:19,898 INFO L231 Difference]: Finished difference. Result has 513 places, 1118 transitions, 38344 flow [2022-11-20 11:36:19,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=35740, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38344, PETRI_PLACES=513, PETRI_TRANSITIONS=1118} [2022-11-20 11:36:19,900 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 268 predicate places. [2022-11-20 11:36:19,900 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1118 transitions, 38344 flow [2022-11-20 11:36:19,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:19,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:36:19,901 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] [2022-11-20 11:36:19,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:36:19,902 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:36:19,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash 386443478, now seen corresponding path program 19 times [2022-11-20 11:36:19,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:19,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92982556] [2022-11-20 11:36:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:21,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:21,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92982556] [2022-11-20 11:36:21,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92982556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:21,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:21,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:36:21,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933316718] [2022-11-20 11:36:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:21,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:36:21,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:36:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:36:21,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:36:21,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1118 transitions, 38344 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:21,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:36:21,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:36:21,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:36:29,816 INFO L130 PetriNetUnfolder]: 3610/7180 cut-off events. [2022-11-20 11:36:29,816 INFO L131 PetriNetUnfolder]: For 476953/477158 co-relation queries the response was YES. [2022-11-20 11:36:29,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91510 conditions, 7180 events. 3610/7180 cut-off events. For 476953/477158 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 51050 event pairs, 520 based on Foata normal form. 10/7137 useless extension candidates. Maximal degree in co-relation 91110. Up to 4156 conditions per place. [2022-11-20 11:36:29,966 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 661 selfloop transitions, 488 changer transitions 0/1260 dead transitions. [2022-11-20 11:36:29,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1260 transitions, 42224 flow [2022-11-20 11:36:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:36:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:36:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2817 transitions. [2022-11-20 11:36:29,970 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5702429149797571 [2022-11-20 11:36:29,970 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2817 transitions. [2022-11-20 11:36:29,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2817 transitions. [2022-11-20 11:36:29,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:36:29,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2817 transitions. [2022-11-20 11:36:29,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.85) internal successors, (2817), 20 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:29,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:29,981 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:29,981 INFO L175 Difference]: Start difference. First operand has 513 places, 1118 transitions, 38344 flow. Second operand 20 states and 2817 transitions. [2022-11-20 11:36:29,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1260 transitions, 42224 flow [2022-11-20 11:36:34,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1260 transitions, 41587 flow, removed 225 selfloop flow, removed 12 redundant places. [2022-11-20 11:36:34,141 INFO L231 Difference]: Finished difference. Result has 524 places, 1138 transitions, 39859 flow [2022-11-20 11:36:34,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=37815, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39859, PETRI_PLACES=524, PETRI_TRANSITIONS=1138} [2022-11-20 11:36:34,142 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 279 predicate places. [2022-11-20 11:36:34,142 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 1138 transitions, 39859 flow [2022-11-20 11:36:34,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:34,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:36:34,143 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] [2022-11-20 11:36:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:36:34,143 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:36:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1578112080, now seen corresponding path program 20 times [2022-11-20 11:36:34,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:34,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674629814] [2022-11-20 11:36:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:34,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:35,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:35,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674629814] [2022-11-20 11:36:35,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674629814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:35,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:35,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:36:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183552343] [2022-11-20 11:36:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:36:35,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:36:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:36:35,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:36:35,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1138 transitions, 39859 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:35,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:36:35,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:36:35,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:36:45,420 INFO L130 PetriNetUnfolder]: 3810/7476 cut-off events. [2022-11-20 11:36:45,421 INFO L131 PetriNetUnfolder]: For 518373/518811 co-relation queries the response was YES. [2022-11-20 11:36:45,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98248 conditions, 7476 events. 3810/7476 cut-off events. For 518373/518811 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 53353 event pairs, 516 based on Foata normal form. 11/7438 useless extension candidates. Maximal degree in co-relation 97844. Up to 4147 conditions per place. [2022-11-20 11:36:45,799 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 611 selfloop transitions, 608 changer transitions 0/1330 dead transitions. [2022-11-20 11:36:45,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 1330 transitions, 45861 flow [2022-11-20 11:36:45,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:36:45,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:36:45,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-20 11:36:45,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-20 11:36:45,806 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-20 11:36:45,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-20 11:36:45,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:36:45,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-20 11:36:45,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:45,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:45,821 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:45,821 INFO L175 Difference]: Start difference. First operand has 524 places, 1138 transitions, 39859 flow. Second operand 20 states and 2822 transitions. [2022-11-20 11:36:45,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 1330 transitions, 45861 flow [2022-11-20 11:36:50,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 1330 transitions, 45593 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-20 11:36:50,702 INFO L231 Difference]: Finished difference. Result has 539 places, 1212 transitions, 44700 flow [2022-11-20 11:36:50,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=39591, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=541, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=44700, PETRI_PLACES=539, PETRI_TRANSITIONS=1212} [2022-11-20 11:36:50,704 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 294 predicate places. [2022-11-20 11:36:50,704 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 1212 transitions, 44700 flow [2022-11-20 11:36:50,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:50,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:36:50,705 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] [2022-11-20 11:36:50,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:36:50,705 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:36:50,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:50,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1978965522, now seen corresponding path program 21 times [2022-11-20 11:36:50,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:50,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214320035] [2022-11-20 11:36:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:50,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:52,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:52,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214320035] [2022-11-20 11:36:52,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214320035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:52,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:52,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:36:52,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182054867] [2022-11-20 11:36:52,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:52,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:36:52,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:52,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:36:52,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:36:52,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:36:52,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 1212 transitions, 44700 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:52,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:36:52,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:36:52,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:01,148 INFO L130 PetriNetUnfolder]: 3856/7562 cut-off events. [2022-11-20 11:37:01,149 INFO L131 PetriNetUnfolder]: For 576401/576839 co-relation queries the response was YES. [2022-11-20 11:37:01,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103048 conditions, 7562 events. 3856/7562 cut-off events. For 576401/576839 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 54167 event pairs, 512 based on Foata normal form. 11/7525 useless extension candidates. Maximal degree in co-relation 102635. Up to 4169 conditions per place. [2022-11-20 11:37:01,336 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 608 selfloop transitions, 630 changer transitions 0/1349 dead transitions. [2022-11-20 11:37:01,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1349 transitions, 48860 flow [2022-11-20 11:37:01,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:37:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:37:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2678 transitions. [2022-11-20 11:37:01,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706371191135734 [2022-11-20 11:37:01,342 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2678 transitions. [2022-11-20 11:37:01,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2678 transitions. [2022-11-20 11:37:01,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:01,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2678 transitions. [2022-11-20 11:37:01,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 140.94736842105263) internal successors, (2678), 19 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:01,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:01,359 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:01,360 INFO L175 Difference]: Start difference. First operand has 539 places, 1212 transitions, 44700 flow. Second operand 19 states and 2678 transitions. [2022-11-20 11:37:01,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1349 transitions, 48860 flow [2022-11-20 11:37:06,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 1349 transitions, 48249 flow, removed 273 selfloop flow, removed 9 redundant places. [2022-11-20 11:37:06,759 INFO L231 Difference]: Finished difference. Result has 554 places, 1234 transitions, 47267 flow [2022-11-20 11:37:06,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=44126, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=608, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=47267, PETRI_PLACES=554, PETRI_TRANSITIONS=1234} [2022-11-20 11:37:06,760 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 309 predicate places. [2022-11-20 11:37:06,761 INFO L495 AbstractCegarLoop]: Abstraction has has 554 places, 1234 transitions, 47267 flow [2022-11-20 11:37:06,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:06,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:06,762 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] [2022-11-20 11:37:06,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:37:06,762 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:37:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:06,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1542707644, now seen corresponding path program 22 times [2022-11-20 11:37:06,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:06,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115376741] [2022-11-20 11:37:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:06,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:08,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:08,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115376741] [2022-11-20 11:37:08,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115376741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:08,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:08,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:37:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276736555] [2022-11-20 11:37:08,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:08,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:37:08,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:08,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:37:08,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:37:08,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:37:08,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 1234 transitions, 47267 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:08,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:08,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:37:08,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:18,856 INFO L130 PetriNetUnfolder]: 3959/7769 cut-off events. [2022-11-20 11:37:18,856 INFO L131 PetriNetUnfolder]: For 647063/647501 co-relation queries the response was YES. [2022-11-20 11:37:18,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108482 conditions, 7769 events. 3959/7769 cut-off events. For 647063/647501 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 56060 event pairs, 492 based on Foata normal form. 11/7732 useless extension candidates. Maximal degree in co-relation 108063. Up to 4289 conditions per place. [2022-11-20 11:37:19,046 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 632 selfloop transitions, 653 changer transitions 0/1396 dead transitions. [2022-11-20 11:37:19,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1396 transitions, 52367 flow [2022-11-20 11:37:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:37:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:37:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2819 transitions. [2022-11-20 11:37:19,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706477732793522 [2022-11-20 11:37:19,051 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2819 transitions. [2022-11-20 11:37:19,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2819 transitions. [2022-11-20 11:37:19,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:19,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2819 transitions. [2022-11-20 11:37:19,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.95) internal successors, (2819), 20 states have internal predecessors, (2819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:19,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:19,058 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:19,058 INFO L175 Difference]: Start difference. First operand has 554 places, 1234 transitions, 47267 flow. Second operand 20 states and 2819 transitions. [2022-11-20 11:37:19,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 1396 transitions, 52367 flow [2022-11-20 11:37:25,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 1396 transitions, 51978 flow, removed 69 selfloop flow, removed 11 redundant places. [2022-11-20 11:37:25,073 INFO L231 Difference]: Finished difference. Result has 569 places, 1275 transitions, 50823 flow [2022-11-20 11:37:25,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=46880, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=615, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=50823, PETRI_PLACES=569, PETRI_TRANSITIONS=1275} [2022-11-20 11:37:25,075 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 324 predicate places. [2022-11-20 11:37:25,075 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 1275 transitions, 50823 flow [2022-11-20 11:37:25,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:25,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:37:25,077 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] [2022-11-20 11:37:25,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:37:25,077 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:37:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:25,078 INFO L85 PathProgramCache]: Analyzing trace with hash 683815016, now seen corresponding path program 23 times [2022-11-20 11:37:25,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:37:25,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124305091] [2022-11-20 11:37:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:25,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:37:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:26,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:26,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124305091] [2022-11-20 11:37:26,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124305091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:26,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:26,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:37:26,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126766932] [2022-11-20 11:37:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:26,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:37:26,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:37:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:37:26,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:37:26,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:37:26,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1275 transitions, 50823 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:26,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:37:26,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:37:26,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:37:37,437 INFO L130 PetriNetUnfolder]: 4011/8103 cut-off events. [2022-11-20 11:37:37,438 INFO L131 PetriNetUnfolder]: For 709237/709379 co-relation queries the response was YES. [2022-11-20 11:37:37,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113502 conditions, 8103 events. 4011/8103 cut-off events. For 709237/709379 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 59463 event pairs, 813 based on Foata normal form. 8/8026 useless extension candidates. Maximal degree in co-relation 113076. Up to 4353 conditions per place. [2022-11-20 11:37:37,899 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 636 selfloop transitions, 671 changer transitions 0/1418 dead transitions. [2022-11-20 11:37:37,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 1418 transitions, 55218 flow [2022-11-20 11:37:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:37:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:37:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2683 transitions. [2022-11-20 11:37:37,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5717025356914553 [2022-11-20 11:37:37,903 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2683 transitions. [2022-11-20 11:37:37,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2683 transitions. [2022-11-20 11:37:37,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:37:37,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2683 transitions. [2022-11-20 11:37:37,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.21052631578948) internal successors, (2683), 19 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:37,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:37,913 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:37:37,913 INFO L175 Difference]: Start difference. First operand has 569 places, 1275 transitions, 50823 flow. Second operand 19 states and 2683 transitions. [2022-11-20 11:37:37,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 1418 transitions, 55218 flow