./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/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_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/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_109e6a25-a2b6-4309-93d4-125261b6c877/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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- 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 11:51:26,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:51:26,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:51:26,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:51:26,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:51:26,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:51:26,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:51:26,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:51:26,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:51:26,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:51:26,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:51:26,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:51:26,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:51:26,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:51:26,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:51:26,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:51:26,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:51:26,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:51:26,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:51:26,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:51:26,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:51:26,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:51:26,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:51:26,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:51:26,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:51:26,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:51:26,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:51:26,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:51:26,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:51:26,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:51:26,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:51:26,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:51:26,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:51:26,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:51:26,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:51:26,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:51:26,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:51:26,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:51:26,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:51:26,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:51:26,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:51:26,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:51:26,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:51:26,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:51:26,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:51:26,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:51:26,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:51:26,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:51:26,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:51:26,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:51:26,576 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:51:26,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:51:26,576 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:51:26,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:51:26,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:51:26,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:51:26,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:51:26,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:51:26,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:51:26,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:51:26,579 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:51:26,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:51:26,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:51:26,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:51:26,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:51:26,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:51:26,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:51:26,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:51:26,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:26,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:51:26,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:51:26,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:51:26,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:51:26,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:51:26,583 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:51:26,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:51:26,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:51:26,583 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_109e6a25-a2b6-4309-93d4-125261b6c877/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-11-20 11:51:26,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:51:27,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:51:27,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:51:27,045 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:51:27,047 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:51:27,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-20 11:51:30,485 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:51:30,720 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:51:30,721 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-20 11:51:30,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/data/e52ee6588/239ae59a0a654e619e4fd9e55bc303c2/FLAG3d14d7196 [2022-11-20 11:51:31,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/data/e52ee6588/239ae59a0a654e619e4fd9e55bc303c2 [2022-11-20 11:51:31,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:51:31,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:51:31,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:31,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:51:31,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:51:31,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0b800a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31, skipping insertion in model container [2022-11-20 11:51:31,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:51:31,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:51:31,396 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_109e6a25-a2b6-4309-93d4-125261b6c877/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-20 11:51:31,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:31,414 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:51:31,453 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_109e6a25-a2b6-4309-93d4-125261b6c877/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-20 11:51:31,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:31,473 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:51:31,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31 WrapperNode [2022-11-20 11:51:31,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:31,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:51:31,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:51:31,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:51:31,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,530 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 339 [2022-11-20 11:51:31,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:51:31,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:51:31,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:51:31,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:51:31,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,561 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:51:31,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:51:31,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:51:31,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:51:31,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:31,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:51:31,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:51:31,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:51:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:51:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:51:31,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:51:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:51:31,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:51:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:51:31,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:51:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:51:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:51:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:51:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:51:31,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:51:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:51:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:51:31,669 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 11:51:31,889 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:51:31,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:51:32,647 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:51:32,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:51:32,666 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:51:32,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:32 BoogieIcfgContainer [2022-11-20 11:51:32,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:51:32,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:51:32,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:51:32,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:51:32,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:51:31" (1/3) ... [2022-11-20 11:51:32,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28682a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:32, skipping insertion in model container [2022-11-20 11:51:32,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31" (2/3) ... [2022-11-20 11:51:32,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28682a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:32, skipping insertion in model container [2022-11-20 11:51:32,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:32" (3/3) ... [2022-11-20 11:51:32,679 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-11-20 11:51:32,688 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:51:32,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:51:32,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-20 11:51:32,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:51:32,891 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:51:32,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 464 transitions, 952 flow [2022-11-20 11:51:33,228 INFO L130 PetriNetUnfolder]: 18/461 cut-off events. [2022-11-20 11:51:33,228 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:51:33,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 461 events. 18/461 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 817 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2022-11-20 11:51:33,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 464 transitions, 952 flow [2022-11-20 11:51:33,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 437 transitions, 892 flow [2022-11-20 11:51:33,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:51:33,272 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;@55a6b36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:51:33,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-11-20 11:51:33,279 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-20 11:51:33,279 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:51:33,280 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:33,281 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] [2022-11-20 11:51:33,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash 711189037, now seen corresponding path program 1 times [2022-11-20 11:51:33,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:33,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252122547] [2022-11-20 11:51:33,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:33,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:33,556 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 11:51:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:33,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252122547] [2022-11-20 11:51:33,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252122547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:33,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:33,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:33,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274331432] [2022-11-20 11:51:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:33,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:33,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:33,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 464 [2022-11-20 11:51:33,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 437 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 11:51:33,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:33,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 464 [2022-11-20 11:51:33,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:34,135 INFO L130 PetriNetUnfolder]: 76/936 cut-off events. [2022-11-20 11:51:34,136 INFO L131 PetriNetUnfolder]: For 99/138 co-relation queries the response was YES. [2022-11-20 11:51:34,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 936 events. 76/936 cut-off events. For 99/138 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4184 event pairs, 60 based on Foata normal form. 244/1001 useless extension candidates. Maximal degree in co-relation 860. Up to 142 conditions per place. [2022-11-20 11:51:34,158 INFO L137 encePairwiseOnDemand]: 449/464 looper letters, 21 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2022-11-20 11:51:34,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 424 transitions, 912 flow [2022-11-20 11:51:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:34,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:34,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:34,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:34,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:34,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:34,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:34,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:34,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:34,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:34,211 INFO L175 Difference]: Start difference. First operand has 431 places, 437 transitions, 892 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:34,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 424 transitions, 912 flow [2022-11-20 11:51:34,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 424 transitions, 900 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:51:34,233 INFO L231 Difference]: Finished difference. Result has 426 places, 424 transitions, 858 flow [2022-11-20 11:51:34,235 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=426, PETRI_TRANSITIONS=424} [2022-11-20 11:51:34,241 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -5 predicate places. [2022-11-20 11:51:34,243 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 424 transitions, 858 flow [2022-11-20 11:51:34,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 11:51:34,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:34,245 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:34,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:51:34,245 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash -308003838, now seen corresponding path program 1 times [2022-11-20 11:51:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:34,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918608722] [2022-11-20 11:51:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:34,362 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 11:51:34,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:34,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918608722] [2022-11-20 11:51:34,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918608722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:34,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:34,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:34,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062046339] [2022-11-20 11:51:34,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:34,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:34,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:34,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:34,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:34,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-20 11:51:34,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 424 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:34,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:34,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-20 11:51:34,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:34,673 INFO L130 PetriNetUnfolder]: 32/1067 cut-off events. [2022-11-20 11:51:34,674 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 11:51:34,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 1067 events. 32/1067 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4555 event pairs, 21 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 1100. Up to 58 conditions per place. [2022-11-20 11:51:34,694 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2022-11-20 11:51:34,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 423 transitions, 890 flow [2022-11-20 11:51:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:34,698 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:34,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:34,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:34,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:34,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:34,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:34,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:34,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:34,708 INFO L175 Difference]: Start difference. First operand has 426 places, 424 transitions, 858 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:34,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 423 transitions, 890 flow [2022-11-20 11:51:34,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 423 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:34,717 INFO L231 Difference]: Finished difference. Result has 425 places, 423 transitions, 856 flow [2022-11-20 11:51:34,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=425, PETRI_TRANSITIONS=423} [2022-11-20 11:51:34,719 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -6 predicate places. [2022-11-20 11:51:34,719 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 423 transitions, 856 flow [2022-11-20 11:51:34,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:34,721 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:34,721 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:34,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:51:34,722 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:34,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 943443519, now seen corresponding path program 1 times [2022-11-20 11:51:34,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:34,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838581721] [2022-11-20 11:51:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:34,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:51:34,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:34,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838581721] [2022-11-20 11:51:34,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838581721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:34,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:34,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:34,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260148755] [2022-11-20 11:51:34,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:34,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:34,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:34,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:34,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-20 11:51:34,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 423 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:34,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:34,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-20 11:51:34,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:35,134 INFO L130 PetriNetUnfolder]: 33/1144 cut-off events. [2022-11-20 11:51:35,134 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 11:51:35,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 1144 events. 33/1144 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5222 event pairs, 21 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1170. Up to 58 conditions per place. [2022-11-20 11:51:35,155 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/422 dead transitions. [2022-11-20 11:51:35,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 422 transitions, 888 flow [2022-11-20 11:51:35,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:35,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:35,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:35,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:35,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:35,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:35,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:35,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:35,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:35,169 INFO L175 Difference]: Start difference. First operand has 425 places, 423 transitions, 856 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:35,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 422 transitions, 888 flow [2022-11-20 11:51:35,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 422 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:35,178 INFO L231 Difference]: Finished difference. Result has 424 places, 422 transitions, 854 flow [2022-11-20 11:51:35,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=424, PETRI_TRANSITIONS=422} [2022-11-20 11:51:35,179 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -7 predicate places. [2022-11-20 11:51:35,180 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 422 transitions, 854 flow [2022-11-20 11:51:35,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:35,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:35,181 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:35,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:51:35,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:35,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:35,182 INFO L85 PathProgramCache]: Analyzing trace with hash -786221532, now seen corresponding path program 1 times [2022-11-20 11:51:35,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:35,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772567428] [2022-11-20 11:51:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:35,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:35,233 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 11:51:35,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:35,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772567428] [2022-11-20 11:51:35,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772567428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:35,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:35,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:35,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730329335] [2022-11-20 11:51:35,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:35,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:35,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:35,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:35,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:35,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 464 [2022-11-20 11:51:35,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 422 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 11:51:35,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:35,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 464 [2022-11-20 11:51:35,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:35,626 INFO L130 PetriNetUnfolder]: 158/1391 cut-off events. [2022-11-20 11:51:35,626 INFO L131 PetriNetUnfolder]: For 14/56 co-relation queries the response was YES. [2022-11-20 11:51:35,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1709 conditions, 1391 events. 158/1391 cut-off events. For 14/56 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 8163 event pairs, 132 based on Foata normal form. 0/1130 useless extension candidates. Maximal degree in co-relation 1655. Up to 255 conditions per place. [2022-11-20 11:51:35,656 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 21 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2022-11-20 11:51:35,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 421 transitions, 898 flow [2022-11-20 11:51:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1302 transitions. [2022-11-20 11:51:35,660 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353448275862069 [2022-11-20 11:51:35,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1302 transitions. [2022-11-20 11:51:35,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1302 transitions. [2022-11-20 11:51:35,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:35,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1302 transitions. [2022-11-20 11:51:35,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states 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 11:51:35,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:35,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:35,674 INFO L175 Difference]: Start difference. First operand has 424 places, 422 transitions, 854 flow. Second operand 3 states and 1302 transitions. [2022-11-20 11:51:35,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 421 transitions, 898 flow [2022-11-20 11:51:35,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 421 transitions, 894 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:35,684 INFO L231 Difference]: Finished difference. Result has 423 places, 421 transitions, 852 flow [2022-11-20 11:51:35,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=423, PETRI_TRANSITIONS=421} [2022-11-20 11:51:35,691 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -8 predicate places. [2022-11-20 11:51:35,691 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 421 transitions, 852 flow [2022-11-20 11:51:35,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 11:51:35,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:35,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:35,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:51:35,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:35,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1675216000, now seen corresponding path program 1 times [2022-11-20 11:51:35,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:35,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737247042] [2022-11-20 11:51:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:35,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:35,779 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 11:51:35,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:35,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737247042] [2022-11-20 11:51:35,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737247042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:35,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:35,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:35,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056503099] [2022-11-20 11:51:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:35,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:35,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:35,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:35,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:35,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-20 11:51:35,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 421 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:35,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:35,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-20 11:51:35,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:36,092 INFO L130 PetriNetUnfolder]: 55/1306 cut-off events. [2022-11-20 11:51:36,093 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-20 11:51:36,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 1306 events. 55/1306 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7680 event pairs, 39 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1357. Up to 85 conditions per place. [2022-11-20 11:51:36,112 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-20 11:51:36,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 420 transitions, 884 flow [2022-11-20 11:51:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:36,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:36,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:36,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:36,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:36,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:36,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:36,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:36,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:36,125 INFO L175 Difference]: Start difference. First operand has 423 places, 421 transitions, 852 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:36,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 420 transitions, 884 flow [2022-11-20 11:51:36,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 420 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:36,134 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 850 flow [2022-11-20 11:51:36,135 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-20 11:51:36,138 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -9 predicate places. [2022-11-20 11:51:36,138 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 850 flow [2022-11-20 11:51:36,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:36,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:36,140 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] [2022-11-20 11:51:36,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:51:36,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:36,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:36,142 INFO L85 PathProgramCache]: Analyzing trace with hash -983644613, now seen corresponding path program 1 times [2022-11-20 11:51:36,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858244008] [2022-11-20 11:51:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:36,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:36,212 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 11:51:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:36,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858244008] [2022-11-20 11:51:36,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858244008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:36,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:36,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416724983] [2022-11-20 11:51:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:36,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:36,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:36,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:36,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:36,217 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-20 11:51:36,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:36,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:36,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-20 11:51:36,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:36,545 INFO L130 PetriNetUnfolder]: 55/1275 cut-off events. [2022-11-20 11:51:36,545 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-20 11:51:36,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 1275 events. 55/1275 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7418 event pairs, 39 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1319. Up to 85 conditions per place. [2022-11-20 11:51:36,563 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-20 11:51:36,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 882 flow [2022-11-20 11:51:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:36,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:36,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:36,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:36,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:36,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:36,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:36,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:36,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:36,576 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:36,576 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 850 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:36,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 882 flow [2022-11-20 11:51:36,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 419 transitions, 878 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:36,584 INFO L231 Difference]: Finished difference. Result has 421 places, 419 transitions, 848 flow [2022-11-20 11:51:36,585 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=421, PETRI_TRANSITIONS=419} [2022-11-20 11:51:36,588 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-20 11:51:36,588 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 419 transitions, 848 flow [2022-11-20 11:51:36,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:36,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:36,590 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 11:51:36,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:51:36,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:36,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:36,593 INFO L85 PathProgramCache]: Analyzing trace with hash 912186274, now seen corresponding path program 1 times [2022-11-20 11:51:36,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:36,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147748567] [2022-11-20 11:51:36,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:36,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:36,670 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 11:51:36,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:36,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147748567] [2022-11-20 11:51:36,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147748567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:36,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:36,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:36,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546821166] [2022-11-20 11:51:36,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:36,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:36,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:36,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:36,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 464 [2022-11-20 11:51:36,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 419 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 11:51:36,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:36,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 464 [2022-11-20 11:51:36,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:37,027 INFO L130 PetriNetUnfolder]: 153/1066 cut-off events. [2022-11-20 11:51:37,027 INFO L131 PetriNetUnfolder]: For 57/63 co-relation queries the response was YES. [2022-11-20 11:51:37,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1066 events. 153/1066 cut-off events. For 57/63 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6151 event pairs, 132 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 1256. Up to 250 conditions per place. [2022-11-20 11:51:37,042 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 21 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-20 11:51:37,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 418 transitions, 892 flow [2022-11-20 11:51:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:37,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1302 transitions. [2022-11-20 11:51:37,046 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353448275862069 [2022-11-20 11:51:37,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1302 transitions. [2022-11-20 11:51:37,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1302 transitions. [2022-11-20 11:51:37,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:37,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1302 transitions. [2022-11-20 11:51:37,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states 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 11:51:37,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:37,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:37,054 INFO L175 Difference]: Start difference. First operand has 421 places, 419 transitions, 848 flow. Second operand 3 states and 1302 transitions. [2022-11-20 11:51:37,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 418 transitions, 892 flow [2022-11-20 11:51:37,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 418 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:37,061 INFO L231 Difference]: Finished difference. Result has 420 places, 418 transitions, 846 flow [2022-11-20 11:51:37,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=420, PETRI_TRANSITIONS=418} [2022-11-20 11:51:37,063 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-20 11:51:37,063 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 418 transitions, 846 flow [2022-11-20 11:51:37,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 11:51:37,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:37,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:37,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:51:37,064 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash 301979051, now seen corresponding path program 1 times [2022-11-20 11:51:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:37,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424930522] [2022-11-20 11:51:37,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:37,106 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 11:51:37,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:37,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424930522] [2022-11-20 11:51:37,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424930522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:37,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:37,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687272888] [2022-11-20 11:51:37,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:37,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:37,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:37,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:37,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-20 11:51:37,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 418 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:37,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:37,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-20 11:51:37,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:37,386 INFO L130 PetriNetUnfolder]: 54/1129 cut-off events. [2022-11-20 11:51:37,386 INFO L131 PetriNetUnfolder]: For 21/39 co-relation queries the response was YES. [2022-11-20 11:51:37,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 1129 events. 54/1129 cut-off events. For 21/39 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5477 event pairs, 39 based on Foata normal form. 0/946 useless extension candidates. Maximal degree in co-relation 1144. Up to 85 conditions per place. [2022-11-20 11:51:37,403 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-20 11:51:37,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 417 transitions, 878 flow [2022-11-20 11:51:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:37,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:37,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:37,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:37,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:37,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:37,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:37,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:37,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:37,415 INFO L175 Difference]: Start difference. First operand has 420 places, 418 transitions, 846 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:37,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 417 transitions, 878 flow [2022-11-20 11:51:37,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 417 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:37,447 INFO L231 Difference]: Finished difference. Result has 419 places, 417 transitions, 844 flow [2022-11-20 11:51:37,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=419, PETRI_TRANSITIONS=417} [2022-11-20 11:51:37,451 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -12 predicate places. [2022-11-20 11:51:37,451 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 417 transitions, 844 flow [2022-11-20 11:51:37,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:37,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:37,453 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] [2022-11-20 11:51:37,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:51:37,453 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1472285165, now seen corresponding path program 1 times [2022-11-20 11:51:37,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:37,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906882582] [2022-11-20 11:51:37,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:37,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:37,520 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 11:51:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:37,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906882582] [2022-11-20 11:51:37,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906882582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:37,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:37,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:37,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422510918] [2022-11-20 11:51:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:37,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:37,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:37,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:37,525 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-20 11:51:37,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 417 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:37,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:37,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-20 11:51:37,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:37,786 INFO L130 PetriNetUnfolder]: 54/1098 cut-off events. [2022-11-20 11:51:37,786 INFO L131 PetriNetUnfolder]: For 21/38 co-relation queries the response was YES. [2022-11-20 11:51:37,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 1098 events. 54/1098 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5331 event pairs, 39 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1106. Up to 85 conditions per place. [2022-11-20 11:51:37,803 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-11-20 11:51:37,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 416 transitions, 876 flow [2022-11-20 11:51:37,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-20 11:51:37,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-20 11:51:37,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-20 11:51:37,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-20 11:51:37,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:37,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-20 11:51:37,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:37,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:37,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:37,815 INFO L175 Difference]: Start difference. First operand has 419 places, 417 transitions, 844 flow. Second operand 3 states and 1314 transitions. [2022-11-20 11:51:37,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 416 transitions, 876 flow [2022-11-20 11:51:37,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 416 transitions, 872 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:37,823 INFO L231 Difference]: Finished difference. Result has 418 places, 416 transitions, 842 flow [2022-11-20 11:51:37,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=418, PETRI_TRANSITIONS=416} [2022-11-20 11:51:37,825 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-20 11:51:37,825 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 416 transitions, 842 flow [2022-11-20 11:51:37,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states 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 11:51:37,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:37,827 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 11:51:37,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:51:37,827 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:37,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:37,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1245861189, now seen corresponding path program 1 times [2022-11-20 11:51:37,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:37,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664480533] [2022-11-20 11:51:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:37,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:37,902 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 11:51:37,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:37,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664480533] [2022-11-20 11:51:37,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664480533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:37,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:37,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:37,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328063098] [2022-11-20 11:51:37,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:37,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:37,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:37,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:37,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:37,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-20 11:51:37,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 416 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 11:51:37,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:37,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-20 11:51:37,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:38,156 INFO L130 PetriNetUnfolder]: 23/1057 cut-off events. [2022-11-20 11:51:38,157 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 11:51:38,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 1057 events. 23/1057 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4559 event pairs, 8 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1008. Up to 31 conditions per place. [2022-11-20 11:51:38,172 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-20 11:51:38,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 418 transitions, 880 flow [2022-11-20 11:51:38,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:38,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:38,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:38,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:38,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:38,183 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:38,183 INFO L175 Difference]: Start difference. First operand has 418 places, 416 transitions, 842 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:38,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 418 transitions, 880 flow [2022-11-20 11:51:38,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 418 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:38,191 INFO L231 Difference]: Finished difference. Result has 417 places, 416 transitions, 848 flow [2022-11-20 11:51:38,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=417, PETRI_TRANSITIONS=416} [2022-11-20 11:51:38,193 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-20 11:51:38,193 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 416 transitions, 848 flow [2022-11-20 11:51:38,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 11:51:38,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:38,194 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:38,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:51:38,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1023306077, now seen corresponding path program 1 times [2022-11-20 11:51:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042907515] [2022-11-20 11:51:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:38,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:38,237 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 11:51:38,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:38,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042907515] [2022-11-20 11:51:38,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042907515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:38,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:38,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:38,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318805833] [2022-11-20 11:51:38,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:38,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:38,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:38,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:38,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:38,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-20 11:51:38,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 416 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 11:51:38,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:38,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-20 11:51:38,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:38,526 INFO L130 PetriNetUnfolder]: 25/1121 cut-off events. [2022-11-20 11:51:38,526 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 11:51:38,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 1121 events. 25/1121 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5072 event pairs, 6 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 978. Up to 33 conditions per place. [2022-11-20 11:51:38,540 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-20 11:51:38,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 418 transitions, 886 flow [2022-11-20 11:51:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:38,544 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:38,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:38,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:38,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:38,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:38,552 INFO L175 Difference]: Start difference. First operand has 417 places, 416 transitions, 848 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:38,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 418 transitions, 886 flow [2022-11-20 11:51:38,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 418 transitions, 886 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:38,559 INFO L231 Difference]: Finished difference. Result has 418 places, 416 transitions, 858 flow [2022-11-20 11:51:38,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=418, PETRI_TRANSITIONS=416} [2022-11-20 11:51:38,561 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-20 11:51:38,561 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 416 transitions, 858 flow [2022-11-20 11:51:38,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 11:51:38,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:38,562 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:38,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:51:38,562 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1762383046, now seen corresponding path program 1 times [2022-11-20 11:51:38,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:38,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358006279] [2022-11-20 11:51:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:38,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:38,613 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 11:51:38,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:38,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358006279] [2022-11-20 11:51:38,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358006279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:38,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:38,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154841897] [2022-11-20 11:51:38,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:38,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:38,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:38,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-20 11:51:38,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 416 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:38,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:38,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-20 11:51:38,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:38,900 INFO L130 PetriNetUnfolder]: 37/1218 cut-off events. [2022-11-20 11:51:38,900 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-20 11:51:38,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 1218 events. 37/1218 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6997 event pairs, 5 based on Foata normal form. 0/1051 useless extension candidates. Maximal degree in co-relation 1099. Up to 43 conditions per place. [2022-11-20 11:51:38,920 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-20 11:51:38,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 418 transitions, 896 flow [2022-11-20 11:51:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:38,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:38,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:38,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:38,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:38,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:38,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:38,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:38,930 INFO L175 Difference]: Start difference. First operand has 418 places, 416 transitions, 858 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:38,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 418 transitions, 896 flow [2022-11-20 11:51:38,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 418 transitions, 896 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:38,982 INFO L231 Difference]: Finished difference. Result has 419 places, 416 transitions, 868 flow [2022-11-20 11:51:38,983 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=868, PETRI_PLACES=419, PETRI_TRANSITIONS=416} [2022-11-20 11:51:38,984 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -12 predicate places. [2022-11-20 11:51:38,984 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 416 transitions, 868 flow [2022-11-20 11:51:38,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:38,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:38,985 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:38,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:51:38,986 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1432956484, now seen corresponding path program 1 times [2022-11-20 11:51:38,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:38,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650737940] [2022-11-20 11:51:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:38,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:39,049 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 11:51:39,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:39,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650737940] [2022-11-20 11:51:39,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650737940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:39,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:39,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018276804] [2022-11-20 11:51:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:39,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:39,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:39,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-20 11:51:39,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 416 transitions, 868 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:39,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:39,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-20 11:51:39,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:39,428 INFO L130 PetriNetUnfolder]: 42/1309 cut-off events. [2022-11-20 11:51:39,428 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-20 11:51:39,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 1309 events. 42/1309 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 7904 event pairs, 5 based on Foata normal form. 0/1135 useless extension candidates. Maximal degree in co-relation 1205. Up to 50 conditions per place. [2022-11-20 11:51:39,450 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-20 11:51:39,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 418 transitions, 906 flow [2022-11-20 11:51:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:39,454 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:39,454 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:39,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:39,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:39,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:39,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:39,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:39,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:39,461 INFO L175 Difference]: Start difference. First operand has 419 places, 416 transitions, 868 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:39,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 418 transitions, 906 flow [2022-11-20 11:51:39,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 418 transitions, 906 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:39,470 INFO L231 Difference]: Finished difference. Result has 420 places, 416 transitions, 878 flow [2022-11-20 11:51:39,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=420, PETRI_TRANSITIONS=416} [2022-11-20 11:51:39,471 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-20 11:51:39,471 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 416 transitions, 878 flow [2022-11-20 11:51:39,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:39,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:39,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:39,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:51:39,473 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:39,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1685053477, now seen corresponding path program 1 times [2022-11-20 11:51:39,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:39,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025927595] [2022-11-20 11:51:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:39,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:39,961 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 11:51:39,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:39,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025927595] [2022-11-20 11:51:39,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025927595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:39,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:39,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:39,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810325656] [2022-11-20 11:51:39,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:39,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:39,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:39,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:39,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:39,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 464 [2022-11-20 11:51:39,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 416 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 422.0) internal successors, (2532), 6 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 11:51:39,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:39,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 464 [2022-11-20 11:51:39,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:40,216 INFO L130 PetriNetUnfolder]: 12/709 cut-off events. [2022-11-20 11:51:40,217 INFO L131 PetriNetUnfolder]: For 3/25 co-relation queries the response was YES. [2022-11-20 11:51:40,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 709 events. 12/709 cut-off events. For 3/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2797 event pairs, 0 based on Foata normal form. 12/640 useless extension candidates. Maximal degree in co-relation 594. Up to 31 conditions per place. [2022-11-20 11:51:40,229 INFO L137 encePairwiseOnDemand]: 459/464 looper letters, 23 selfloop transitions, 4 changer transitions 0/415 dead transitions. [2022-11-20 11:51:40,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 415 transitions, 930 flow [2022-11-20 11:51:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:40,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2548 transitions. [2022-11-20 11:51:40,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9152298850574713 [2022-11-20 11:51:40,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2548 transitions. [2022-11-20 11:51:40,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2548 transitions. [2022-11-20 11:51:40,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:40,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2548 transitions. [2022-11-20 11:51:40,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.6666666666667) internal successors, (2548), 6 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:40,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states 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 11:51:40,248 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states 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 11:51:40,248 INFO L175 Difference]: Start difference. First operand has 420 places, 416 transitions, 878 flow. Second operand 6 states and 2548 transitions. [2022-11-20 11:51:40,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 415 transitions, 930 flow [2022-11-20 11:51:40,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 415 transitions, 930 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:40,256 INFO L231 Difference]: Finished difference. Result has 424 places, 415 transitions, 884 flow [2022-11-20 11:51:40,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=424, PETRI_TRANSITIONS=415} [2022-11-20 11:51:40,257 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -7 predicate places. [2022-11-20 11:51:40,257 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 415 transitions, 884 flow [2022-11-20 11:51:40,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 422.0) internal successors, (2532), 6 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 11:51:40,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:40,259 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:40,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:51:40,259 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:40,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash -775763732, now seen corresponding path program 1 times [2022-11-20 11:51:40,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:40,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896065155] [2022-11-20 11:51:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:40,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:40,311 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 11:51:40,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:40,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896065155] [2022-11-20 11:51:40,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896065155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:40,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:40,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:40,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117948833] [2022-11-20 11:51:40,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:40,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:40,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:40,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:40,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:40,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-20 11:51:40,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 415 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:40,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:40,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-20 11:51:40,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:40,697 INFO L130 PetriNetUnfolder]: 61/1683 cut-off events. [2022-11-20 11:51:40,697 INFO L131 PetriNetUnfolder]: For 19/25 co-relation queries the response was YES. [2022-11-20 11:51:40,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1805 conditions, 1683 events. 61/1683 cut-off events. For 19/25 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 10259 event pairs, 10 based on Foata normal form. 0/1438 useless extension candidates. Maximal degree in co-relation 1609. Up to 70 conditions per place. [2022-11-20 11:51:40,716 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-20 11:51:40,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 417 transitions, 922 flow [2022-11-20 11:51:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:40,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:40,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:40,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:40,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:40,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:40,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:40,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:40,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:40,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:40,727 INFO L175 Difference]: Start difference. First operand has 424 places, 415 transitions, 884 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:40,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 417 transitions, 922 flow [2022-11-20 11:51:40,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 417 transitions, 915 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:51:40,735 INFO L231 Difference]: Finished difference. Result has 421 places, 415 transitions, 887 flow [2022-11-20 11:51:40,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=887, PETRI_PLACES=421, PETRI_TRANSITIONS=415} [2022-11-20 11:51:40,737 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-20 11:51:40,738 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 415 transitions, 887 flow [2022-11-20 11:51:40,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:40,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:40,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:40,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:51:40,739 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:40,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1815400238, now seen corresponding path program 1 times [2022-11-20 11:51:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337765980] [2022-11-20 11:51:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:40,813 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 11:51:40,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:40,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337765980] [2022-11-20 11:51:40,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337765980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:40,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:40,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:40,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915443651] [2022-11-20 11:51:40,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:40,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:40,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:40,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:40,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:40,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-20 11:51:40,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 415 transitions, 887 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:40,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:40,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-20 11:51:40,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:41,251 INFO L130 PetriNetUnfolder]: 70/1891 cut-off events. [2022-11-20 11:51:41,287 INFO L131 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2022-11-20 11:51:41,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 1891 events. 70/1891 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11943 event pairs, 19 based on Foata normal form. 0/1628 useless extension candidates. Maximal degree in co-relation 1844. Up to 80 conditions per place. [2022-11-20 11:51:41,304 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-20 11:51:41,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 417 transitions, 925 flow [2022-11-20 11:51:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:41,309 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:41,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:41,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:41,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:41,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:41,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:41,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:41,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:41,317 INFO L175 Difference]: Start difference. First operand has 421 places, 415 transitions, 887 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:41,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 417 transitions, 925 flow [2022-11-20 11:51:41,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 417 transitions, 925 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:41,327 INFO L231 Difference]: Finished difference. Result has 422 places, 415 transitions, 897 flow [2022-11-20 11:51:41,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=897, PETRI_PLACES=422, PETRI_TRANSITIONS=415} [2022-11-20 11:51:41,329 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -9 predicate places. [2022-11-20 11:51:41,331 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 415 transitions, 897 flow [2022-11-20 11:51:41,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:41,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:41,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:41,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:51:41,332 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:41,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:41,333 INFO L85 PathProgramCache]: Analyzing trace with hash -581130721, now seen corresponding path program 1 times [2022-11-20 11:51:41,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:41,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251247350] [2022-11-20 11:51:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:41,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:41,390 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 11:51:41,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:41,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251247350] [2022-11-20 11:51:41,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251247350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:41,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:41,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:41,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279104904] [2022-11-20 11:51:41,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:41,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:41,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:41,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 464 [2022-11-20 11:51:41,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 415 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states 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 11:51:41,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:41,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 464 [2022-11-20 11:51:41,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:41,849 INFO L130 PetriNetUnfolder]: 179/1960 cut-off events. [2022-11-20 11:51:41,850 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-20 11:51:41,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 1960 events. 179/1960 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 13714 event pairs, 84 based on Foata normal form. 0/1671 useless extension candidates. Maximal degree in co-relation 2062. Up to 293 conditions per place. [2022-11-20 11:51:41,876 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 18 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-20 11:51:41,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 415 transitions, 939 flow [2022-11-20 11:51:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2022-11-20 11:51:41,880 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418103448275862 [2022-11-20 11:51:41,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2022-11-20 11:51:41,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2022-11-20 11:51:41,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:41,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2022-11-20 11:51:41,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:41,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:41,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:41,887 INFO L175 Difference]: Start difference. First operand has 422 places, 415 transitions, 897 flow. Second operand 3 states and 1311 transitions. [2022-11-20 11:51:41,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 415 transitions, 939 flow [2022-11-20 11:51:41,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 415 transitions, 939 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:41,895 INFO L231 Difference]: Finished difference. Result has 421 places, 413 transitions, 903 flow [2022-11-20 11:51:41,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=421, PETRI_TRANSITIONS=413} [2022-11-20 11:51:41,896 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-20 11:51:41,896 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 413 transitions, 903 flow [2022-11-20 11:51:41,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states 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 11:51:41,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:41,897 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:41,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:51:41,898 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:41,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash -120839103, now seen corresponding path program 1 times [2022-11-20 11:51:41,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:41,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68117223] [2022-11-20 11:51:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:41,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:41,962 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 11:51:41,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:41,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68117223] [2022-11-20 11:51:41,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68117223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:41,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:41,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:41,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494229796] [2022-11-20 11:51:41,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:41,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:41,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:41,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:41,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:41,967 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 464 [2022-11-20 11:51:41,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 413 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states 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 11:51:41,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:41,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 464 [2022-11-20 11:51:41,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:42,449 INFO L130 PetriNetUnfolder]: 123/1566 cut-off events. [2022-11-20 11:51:42,449 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-20 11:51:42,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 1566 events. 123/1566 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9937 event pairs, 28 based on Foata normal form. 0/1386 useless extension candidates. Maximal degree in co-relation 1581. Up to 152 conditions per place. [2022-11-20 11:51:42,474 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 18 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-20 11:51:42,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 413 transitions, 945 flow [2022-11-20 11:51:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2022-11-20 11:51:42,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418103448275862 [2022-11-20 11:51:42,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2022-11-20 11:51:42,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2022-11-20 11:51:42,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:42,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2022-11-20 11:51:42,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:42,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:42,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:42,486 INFO L175 Difference]: Start difference. First operand has 421 places, 413 transitions, 903 flow. Second operand 3 states and 1311 transitions. [2022-11-20 11:51:42,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 413 transitions, 945 flow [2022-11-20 11:51:42,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 413 transitions, 945 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:42,496 INFO L231 Difference]: Finished difference. Result has 420 places, 411 transitions, 909 flow [2022-11-20 11:51:42,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=909, PETRI_PLACES=420, PETRI_TRANSITIONS=411} [2022-11-20 11:51:42,497 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-20 11:51:42,498 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 411 transitions, 909 flow [2022-11-20 11:51:42,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states 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 11:51:42,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:42,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:42,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:51:42,499 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:42,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:42,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1662174678, now seen corresponding path program 1 times [2022-11-20 11:51:42,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:42,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574757837] [2022-11-20 11:51:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:42,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:42,571 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 11:51:42,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:42,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574757837] [2022-11-20 11:51:42,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574757837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:42,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:42,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:42,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840463056] [2022-11-20 11:51:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:42,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:42,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:42,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:42,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:42,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 464 [2022-11-20 11:51:42,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 411 transitions, 909 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states 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 11:51:42,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:42,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 464 [2022-11-20 11:51:42,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:42,958 INFO L130 PetriNetUnfolder]: 60/1569 cut-off events. [2022-11-20 11:51:42,958 INFO L131 PetriNetUnfolder]: For 5/29 co-relation queries the response was YES. [2022-11-20 11:51:42,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1569 events. 60/1569 cut-off events. For 5/29 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9108 event pairs, 8 based on Foata normal form. 5/1418 useless extension candidates. Maximal degree in co-relation 1473. Up to 38 conditions per place. [2022-11-20 11:51:42,983 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 13 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-20 11:51:42,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 412 transitions, 943 flow [2022-11-20 11:51:42,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-20 11:51:42,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9511494252873564 [2022-11-20 11:51:42,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-20 11:51:42,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-20 11:51:42,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:42,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-20 11:51:42,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:42,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:42,994 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:42,994 INFO L175 Difference]: Start difference. First operand has 420 places, 411 transitions, 909 flow. Second operand 3 states and 1324 transitions. [2022-11-20 11:51:42,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 412 transitions, 943 flow [2022-11-20 11:51:42,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 412 transitions, 943 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:43,002 INFO L231 Difference]: Finished difference. Result has 421 places, 410 transitions, 911 flow [2022-11-20 11:51:43,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=421, PETRI_TRANSITIONS=410} [2022-11-20 11:51:43,004 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-20 11:51:43,004 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 410 transitions, 911 flow [2022-11-20 11:51:43,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states 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 11:51:43,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:43,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:43,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:51:43,005 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:43,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash -502032096, now seen corresponding path program 1 times [2022-11-20 11:51:43,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:43,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072235600] [2022-11-20 11:51:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:43,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:43,063 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 11:51:43,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:43,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072235600] [2022-11-20 11:51:43,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072235600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:43,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:43,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346532918] [2022-11-20 11:51:43,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:43,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:43,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:43,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:43,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 464 [2022-11-20 11:51:43,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 410 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 431.0) internal successors, (1293), 3 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states 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 11:51:43,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:43,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 464 [2022-11-20 11:51:43,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:43,511 INFO L130 PetriNetUnfolder]: 222/1958 cut-off events. [2022-11-20 11:51:43,511 INFO L131 PetriNetUnfolder]: For 49/53 co-relation queries the response was YES. [2022-11-20 11:51:43,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 1958 events. 222/1958 cut-off events. For 49/53 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12805 event pairs, 76 based on Foata normal form. 0/1763 useless extension candidates. Maximal degree in co-relation 2244. Up to 346 conditions per place. [2022-11-20 11:51:43,533 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 18 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-20 11:51:43,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 410 transitions, 953 flow [2022-11-20 11:51:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2022-11-20 11:51:43,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418103448275862 [2022-11-20 11:51:43,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2022-11-20 11:51:43,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2022-11-20 11:51:43,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:43,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2022-11-20 11:51:43,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:43,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:43,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:43,544 INFO L175 Difference]: Start difference. First operand has 421 places, 410 transitions, 911 flow. Second operand 3 states and 1311 transitions. [2022-11-20 11:51:43,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 410 transitions, 953 flow [2022-11-20 11:51:43,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 410 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:43,552 INFO L231 Difference]: Finished difference. Result has 418 places, 408 transitions, 913 flow [2022-11-20 11:51:43,552 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=418, PETRI_TRANSITIONS=408} [2022-11-20 11:51:43,553 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-20 11:51:43,553 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 408 transitions, 913 flow [2022-11-20 11:51:43,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 431.0) internal successors, (1293), 3 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states 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 11:51:43,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:43,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:43,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:51:43,555 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:43,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1079522985, now seen corresponding path program 1 times [2022-11-20 11:51:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:43,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612956921] [2022-11-20 11:51:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:43,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:43,626 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 11:51:43,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:43,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612956921] [2022-11-20 11:51:43,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612956921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:43,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:43,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:43,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032882666] [2022-11-20 11:51:43,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:43,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:43,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:43,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:43,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:43,630 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 464 [2022-11-20 11:51:43,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 408 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 437.6666666666667) internal successors, (1313), 3 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states 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 11:51:43,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:43,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 464 [2022-11-20 11:51:43,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:43,993 INFO L130 PetriNetUnfolder]: 66/1609 cut-off events. [2022-11-20 11:51:43,993 INFO L131 PetriNetUnfolder]: For 9/24 co-relation queries the response was YES. [2022-11-20 11:51:44,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1609 events. 66/1609 cut-off events. For 9/24 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9322 event pairs, 6 based on Foata normal form. 2/1487 useless extension candidates. Maximal degree in co-relation 1645. Up to 48 conditions per place. [2022-11-20 11:51:44,013 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 13 selfloop transitions, 2 changer transitions 0/409 dead transitions. [2022-11-20 11:51:44,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 409 transitions, 947 flow [2022-11-20 11:51:44,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-20 11:51:44,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9511494252873564 [2022-11-20 11:51:44,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-20 11:51:44,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-20 11:51:44,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:44,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-20 11:51:44,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:44,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:44,024 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:44,024 INFO L175 Difference]: Start difference. First operand has 418 places, 408 transitions, 913 flow. Second operand 3 states and 1324 transitions. [2022-11-20 11:51:44,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 409 transitions, 947 flow [2022-11-20 11:51:44,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 409 transitions, 947 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:44,031 INFO L231 Difference]: Finished difference. Result has 419 places, 407 transitions, 915 flow [2022-11-20 11:51:44,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=915, PETRI_PLACES=419, PETRI_TRANSITIONS=407} [2022-11-20 11:51:44,033 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -12 predicate places. [2022-11-20 11:51:44,033 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 407 transitions, 915 flow [2022-11-20 11:51:44,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.6666666666667) internal successors, (1313), 3 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states 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 11:51:44,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:44,034 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:44,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:51:44,035 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:44,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:44,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2101790978, now seen corresponding path program 1 times [2022-11-20 11:51:44,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:44,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878072169] [2022-11-20 11:51:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:44,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:44,097 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 11:51:44,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:44,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878072169] [2022-11-20 11:51:44,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878072169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:44,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:44,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:44,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763639942] [2022-11-20 11:51:44,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:44,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:44,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:44,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:44,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:44,101 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 464 [2022-11-20 11:51:44,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 407 transitions, 915 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:44,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:44,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 464 [2022-11-20 11:51:44,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:44,415 INFO L130 PetriNetUnfolder]: 74/1320 cut-off events. [2022-11-20 11:51:44,416 INFO L131 PetriNetUnfolder]: For 33/42 co-relation queries the response was YES. [2022-11-20 11:51:44,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 1320 events. 74/1320 cut-off events. For 33/42 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7013 event pairs, 14 based on Foata normal form. 1/1232 useless extension candidates. Maximal degree in co-relation 1546. Up to 77 conditions per place. [2022-11-20 11:51:44,431 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 12 selfloop transitions, 2 changer transitions 0/408 dead transitions. [2022-11-20 11:51:44,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 408 transitions, 947 flow [2022-11-20 11:51:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:51:44,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-20 11:51:44,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:51:44,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:51:44,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:44,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:51:44,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 11:51:44,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:44,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:44,442 INFO L175 Difference]: Start difference. First operand has 419 places, 407 transitions, 915 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:51:44,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 408 transitions, 947 flow [2022-11-20 11:51:44,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 408 transitions, 943 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:44,450 INFO L231 Difference]: Finished difference. Result has 418 places, 406 transitions, 913 flow [2022-11-20 11:51:44,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=418, PETRI_TRANSITIONS=406} [2022-11-20 11:51:44,451 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-20 11:51:44,451 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 406 transitions, 913 flow [2022-11-20 11:51:44,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 11:51:44,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:44,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:44,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:51:44,453 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:44,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:44,453 INFO L85 PathProgramCache]: Analyzing trace with hash 419822027, now seen corresponding path program 1 times [2022-11-20 11:51:44,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:44,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125838069] [2022-11-20 11:51:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:45,126 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 11:51:45,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:45,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125838069] [2022-11-20 11:51:45,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125838069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:45,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:45,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:45,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610521857] [2022-11-20 11:51:45,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:45,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:45,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:45,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 464 [2022-11-20 11:51:45,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 406 transitions, 913 flow. Second operand has 6 states, 6 states have (on average 423.0) internal successors, (2538), 6 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states 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 11:51:45,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:45,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 464 [2022-11-20 11:51:45,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:45,485 INFO L130 PetriNetUnfolder]: 46/1184 cut-off events. [2022-11-20 11:51:45,485 INFO L131 PetriNetUnfolder]: For 5/57 co-relation queries the response was YES. [2022-11-20 11:51:45,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1184 events. 46/1184 cut-off events. For 5/57 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5998 event pairs, 0 based on Foata normal form. 8/1122 useless extension candidates. Maximal degree in co-relation 1287. Up to 38 conditions per place. [2022-11-20 11:51:45,498 INFO L137 encePairwiseOnDemand]: 459/464 looper letters, 22 selfloop transitions, 4 changer transitions 0/405 dead transitions. [2022-11-20 11:51:45,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 405 transitions, 963 flow [2022-11-20 11:51:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2547 transitions. [2022-11-20 11:51:45,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9148706896551724 [2022-11-20 11:51:45,505 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2547 transitions. [2022-11-20 11:51:45,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2547 transitions. [2022-11-20 11:51:45,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:45,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2547 transitions. [2022-11-20 11:51:45,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states 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 11:51:45,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states 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 11:51:45,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states 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 11:51:45,520 INFO L175 Difference]: Start difference. First operand has 418 places, 406 transitions, 913 flow. Second operand 6 states and 2547 transitions. [2022-11-20 11:51:45,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 405 transitions, 963 flow [2022-11-20 11:51:45,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 405 transitions, 959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:45,527 INFO L231 Difference]: Finished difference. Result has 420 places, 405 transitions, 915 flow [2022-11-20 11:51:45,528 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=915, PETRI_PLACES=420, PETRI_TRANSITIONS=405} [2022-11-20 11:51:45,529 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-20 11:51:45,529 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 405 transitions, 915 flow [2022-11-20 11:51:45,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 423.0) internal successors, (2538), 6 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states 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 11:51:45,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:45,530 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:45,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:51:45,531 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:45,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:45,531 INFO L85 PathProgramCache]: Analyzing trace with hash -689643887, now seen corresponding path program 1 times [2022-11-20 11:51:45,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:45,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922669421] [2022-11-20 11:51:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:45,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:46,329 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 11:51:46,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:46,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922669421] [2022-11-20 11:51:46,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922669421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:46,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:46,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:46,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388760856] [2022-11-20 11:51:46,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:46,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:46,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:46,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:46,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:46,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 464 [2022-11-20 11:51:46,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 405 transitions, 915 flow. Second operand has 6 states, 6 states have (on average 424.0) internal successors, (2544), 6 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states 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 11:51:46,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:46,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 464 [2022-11-20 11:51:46,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:46,679 INFO L130 PetriNetUnfolder]: 46/1183 cut-off events. [2022-11-20 11:51:46,679 INFO L131 PetriNetUnfolder]: For 8/61 co-relation queries the response was YES. [2022-11-20 11:51:46,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 1183 events. 46/1183 cut-off events. For 8/61 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5995 event pairs, 0 based on Foata normal form. 4/1118 useless extension candidates. Maximal degree in co-relation 1310. Up to 38 conditions per place. [2022-11-20 11:51:46,696 INFO L137 encePairwiseOnDemand]: 459/464 looper letters, 21 selfloop transitions, 4 changer transitions 0/404 dead transitions. [2022-11-20 11:51:46,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 404 transitions, 963 flow [2022-11-20 11:51:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2546 transitions. [2022-11-20 11:51:46,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9145114942528736 [2022-11-20 11:51:46,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2546 transitions. [2022-11-20 11:51:46,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2546 transitions. [2022-11-20 11:51:46,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:46,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2546 transitions. [2022-11-20 11:51:46,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.3333333333333) internal successors, (2546), 6 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states 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 11:51:46,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states 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 11:51:46,715 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states 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 11:51:46,715 INFO L175 Difference]: Start difference. First operand has 420 places, 405 transitions, 915 flow. Second operand 6 states and 2546 transitions. [2022-11-20 11:51:46,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 404 transitions, 963 flow [2022-11-20 11:51:46,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 404 transitions, 956 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:51:46,723 INFO L231 Difference]: Finished difference. Result has 420 places, 404 transitions, 914 flow [2022-11-20 11:51:46,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=420, PETRI_TRANSITIONS=404} [2022-11-20 11:51:46,724 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-20 11:51:46,725 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 404 transitions, 914 flow [2022-11-20 11:51:46,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 424.0) internal successors, (2544), 6 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states 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 11:51:46,726 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:46,726 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:46,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:51:46,726 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:46,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash -461798098, now seen corresponding path program 1 times [2022-11-20 11:51:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:46,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338291583] [2022-11-20 11:51:46,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:46,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:46,845 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 11:51:46,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:46,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338291583] [2022-11-20 11:51:46,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338291583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:46,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:46,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:46,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601655159] [2022-11-20 11:51:46,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:46,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:46,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:46,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:46,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:46,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 464 [2022-11-20 11:51:46,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 404 transitions, 914 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:46,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:46,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 464 [2022-11-20 11:51:46,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:47,234 INFO L130 PetriNetUnfolder]: 64/1603 cut-off events. [2022-11-20 11:51:47,235 INFO L131 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2022-11-20 11:51:47,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1603 events. 64/1603 cut-off events. For 5/17 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9175 event pairs, 8 based on Foata normal form. 0/1508 useless extension candidates. Maximal degree in co-relation 1820. Up to 50 conditions per place. [2022-11-20 11:51:47,256 INFO L137 encePairwiseOnDemand]: 462/464 looper letters, 9 selfloop transitions, 1 changer transitions 0/403 dead transitions. [2022-11-20 11:51:47,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 403 transitions, 932 flow [2022-11-20 11:51:47,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1325 transitions. [2022-11-20 11:51:47,260 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951867816091954 [2022-11-20 11:51:47,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1325 transitions. [2022-11-20 11:51:47,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1325 transitions. [2022-11-20 11:51:47,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:47,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1325 transitions. [2022-11-20 11:51:47,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.6666666666667) internal successors, (1325), 3 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states 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 11:51:47,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:47,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:47,267 INFO L175 Difference]: Start difference. First operand has 420 places, 404 transitions, 914 flow. Second operand 3 states and 1325 transitions. [2022-11-20 11:51:47,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 403 transitions, 932 flow [2022-11-20 11:51:47,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 403 transitions, 925 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:51:47,274 INFO L231 Difference]: Finished difference. Result has 417 places, 403 transitions, 907 flow [2022-11-20 11:51:47,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=417, PETRI_TRANSITIONS=403} [2022-11-20 11:51:47,276 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-20 11:51:47,276 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 403 transitions, 907 flow [2022-11-20 11:51:47,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:47,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:47,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:47,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:51:47,277 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:47,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2029183497, now seen corresponding path program 1 times [2022-11-20 11:51:47,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:47,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905616260] [2022-11-20 11:51:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:47,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:47,392 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 11:51:47,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:47,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905616260] [2022-11-20 11:51:47,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905616260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:47,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:47,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245622489] [2022-11-20 11:51:47,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:47,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:47,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:47,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 464 [2022-11-20 11:51:47,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 403 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:47,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:47,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 464 [2022-11-20 11:51:47,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:47,758 INFO L130 PetriNetUnfolder]: 59/1573 cut-off events. [2022-11-20 11:51:47,758 INFO L131 PetriNetUnfolder]: For 7/16 co-relation queries the response was YES. [2022-11-20 11:51:47,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 1573 events. 59/1573 cut-off events. For 7/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8888 event pairs, 6 based on Foata normal form. 0/1481 useless extension candidates. Maximal degree in co-relation 1778. Up to 48 conditions per place. [2022-11-20 11:51:47,778 INFO L137 encePairwiseOnDemand]: 462/464 looper letters, 9 selfloop transitions, 1 changer transitions 0/402 dead transitions. [2022-11-20 11:51:47,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 402 transitions, 925 flow [2022-11-20 11:51:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1325 transitions. [2022-11-20 11:51:47,782 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951867816091954 [2022-11-20 11:51:47,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1325 transitions. [2022-11-20 11:51:47,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1325 transitions. [2022-11-20 11:51:47,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:47,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1325 transitions. [2022-11-20 11:51:47,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.6666666666667) internal successors, (1325), 3 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states 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 11:51:47,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:47,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:47,789 INFO L175 Difference]: Start difference. First operand has 417 places, 403 transitions, 907 flow. Second operand 3 states and 1325 transitions. [2022-11-20 11:51:47,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 402 transitions, 925 flow [2022-11-20 11:51:47,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 402 transitions, 924 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:47,796 INFO L231 Difference]: Finished difference. Result has 417 places, 402 transitions, 906 flow [2022-11-20 11:51:47,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=417, PETRI_TRANSITIONS=402} [2022-11-20 11:51:47,798 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-20 11:51:47,798 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 402 transitions, 906 flow [2022-11-20 11:51:47,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:47,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:47,799 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:47,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:51:47,800 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-20 11:51:47,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash -579776795, now seen corresponding path program 1 times [2022-11-20 11:51:47,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:47,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525378744] [2022-11-20 11:51:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:47,908 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 11:51:47,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:47,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525378744] [2022-11-20 11:51:47,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525378744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:47,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:47,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:47,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747735189] [2022-11-20 11:51:47,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:47,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:47,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:47,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:47,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:47,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 464 [2022-11-20 11:51:47,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 402 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:47,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:47,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 464 [2022-11-20 11:51:47,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:48,211 INFO L130 PetriNetUnfolder]: 59/1288 cut-off events. [2022-11-20 11:51:48,212 INFO L131 PetriNetUnfolder]: For 19/26 co-relation queries the response was YES. [2022-11-20 11:51:48,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 1288 events. 59/1288 cut-off events. For 19/26 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6711 event pairs, 14 based on Foata normal form. 2/1215 useless extension candidates. Maximal degree in co-relation 1521. Up to 75 conditions per place. [2022-11-20 11:51:48,226 INFO L137 encePairwiseOnDemand]: 462/464 looper letters, 0 selfloop transitions, 0 changer transitions 401/401 dead transitions. [2022-11-20 11:51:48,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 401 transitions, 922 flow [2022-11-20 11:51:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:48,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-20 11:51:48,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9511494252873564 [2022-11-20 11:51:48,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-20 11:51:48,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-20 11:51:48,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:48,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-20 11:51:48,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:48,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:48,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 11:51:48,236 INFO L175 Difference]: Start difference. First operand has 417 places, 402 transitions, 906 flow. Second operand 3 states and 1324 transitions. [2022-11-20 11:51:48,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 401 transitions, 922 flow [2022-11-20 11:51:48,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 401 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:48,242 INFO L231 Difference]: Finished difference. Result has 417 places, 0 transitions, 0 flow [2022-11-20 11:51:48,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=417, PETRI_TRANSITIONS=0} [2022-11-20 11:51:48,243 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-20 11:51:48,243 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 0 transitions, 0 flow [2022-11-20 11:51:48,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 11:51:48,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (71 of 72 remaining) [2022-11-20 11:51:48,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (70 of 72 remaining) [2022-11-20 11:51:48,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (69 of 72 remaining) [2022-11-20 11:51:48,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (68 of 72 remaining) [2022-11-20 11:51:48,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (67 of 72 remaining) [2022-11-20 11:51:48,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (66 of 72 remaining) [2022-11-20 11:51:48,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (65 of 72 remaining) [2022-11-20 11:51:48,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (64 of 72 remaining) [2022-11-20 11:51:48,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (63 of 72 remaining) [2022-11-20 11:51:48,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (62 of 72 remaining) [2022-11-20 11:51:48,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (61 of 72 remaining) [2022-11-20 11:51:48,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (60 of 72 remaining) [2022-11-20 11:51:48,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 72 remaining) [2022-11-20 11:51:48,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (58 of 72 remaining) [2022-11-20 11:51:48,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (57 of 72 remaining) [2022-11-20 11:51:48,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (56 of 72 remaining) [2022-11-20 11:51:48,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (55 of 72 remaining) [2022-11-20 11:51:48,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (54 of 72 remaining) [2022-11-20 11:51:48,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (53 of 72 remaining) [2022-11-20 11:51:48,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (52 of 72 remaining) [2022-11-20 11:51:48,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (51 of 72 remaining) [2022-11-20 11:51:48,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (50 of 72 remaining) [2022-11-20 11:51:48,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (49 of 72 remaining) [2022-11-20 11:51:48,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (48 of 72 remaining) [2022-11-20 11:51:48,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (47 of 72 remaining) [2022-11-20 11:51:48,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (46 of 72 remaining) [2022-11-20 11:51:48,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (45 of 72 remaining) [2022-11-20 11:51:48,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 72 remaining) [2022-11-20 11:51:48,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 72 remaining) [2022-11-20 11:51:48,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 72 remaining) [2022-11-20 11:51:48,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 72 remaining) [2022-11-20 11:51:48,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 72 remaining) [2022-11-20 11:51:48,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (39 of 72 remaining) [2022-11-20 11:51:48,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 72 remaining) [2022-11-20 11:51:48,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (37 of 72 remaining) [2022-11-20 11:51:48,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (36 of 72 remaining) [2022-11-20 11:51:48,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (35 of 72 remaining) [2022-11-20 11:51:48,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (34 of 72 remaining) [2022-11-20 11:51:48,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (33 of 72 remaining) [2022-11-20 11:51:48,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (32 of 72 remaining) [2022-11-20 11:51:48,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (31 of 72 remaining) [2022-11-20 11:51:48,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (30 of 72 remaining) [2022-11-20 11:51:48,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 72 remaining) [2022-11-20 11:51:48,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 72 remaining) [2022-11-20 11:51:48,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 72 remaining) [2022-11-20 11:51:48,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 72 remaining) [2022-11-20 11:51:48,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 72 remaining) [2022-11-20 11:51:48,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 72 remaining) [2022-11-20 11:51:48,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 72 remaining) [2022-11-20 11:51:48,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 72 remaining) [2022-11-20 11:51:48,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 72 remaining) [2022-11-20 11:51:48,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 72 remaining) [2022-11-20 11:51:48,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 72 remaining) [2022-11-20 11:51:48,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 72 remaining) [2022-11-20 11:51:48,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 72 remaining) [2022-11-20 11:51:48,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 72 remaining) [2022-11-20 11:51:48,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 72 remaining) [2022-11-20 11:51:48,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 72 remaining) [2022-11-20 11:51:48,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 72 remaining) [2022-11-20 11:51:48,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 72 remaining) [2022-11-20 11:51:48,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 72 remaining) [2022-11-20 11:51:48,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 72 remaining) [2022-11-20 11:51:48,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 72 remaining) [2022-11-20 11:51:48,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 72 remaining) [2022-11-20 11:51:48,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 72 remaining) [2022-11-20 11:51:48,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 72 remaining) [2022-11-20 11:51:48,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 72 remaining) [2022-11-20 11:51:48,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 72 remaining) [2022-11-20 11:51:48,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 72 remaining) [2022-11-20 11:51:48,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 72 remaining) [2022-11-20 11:51:48,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 72 remaining) [2022-11-20 11:51:48,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 72 remaining) [2022-11-20 11:51:48,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:51:48,267 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-20 11:51:48,273 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:51:48,273 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:51:48,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:51:48 BasicIcfg [2022-11-20 11:51:48,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:51:48,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:51:48,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:51:48,279 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:51:48,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:32" (3/4) ... [2022-11-20 11:51:48,283 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:51:48,289 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 11:51:48,289 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 11:51:48,289 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 11:51:48,296 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 11:51:48,297 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:51:48,297 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:51:48,297 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:51:48,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:51:48,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:51:48,354 INFO L158 Benchmark]: Toolchain (without parser) took 17263.91ms. Allocated memory was 138.4MB in the beginning and 608.2MB in the end (delta: 469.8MB). Free memory was 71.6MB in the beginning and 270.2MB in the end (delta: -198.6MB). Peak memory consumption was 272.5MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,355 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:51:48,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.03ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 71.3MB in the beginning and 151.1MB in the end (delta: -79.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.73ms. Allocated memory is still 186.6MB. Free memory was 151.1MB in the beginning and 148.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,356 INFO L158 Benchmark]: Boogie Preprocessor took 35.10ms. Allocated memory is still 186.6MB. Free memory was 148.0MB in the beginning and 145.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,356 INFO L158 Benchmark]: RCFGBuilder took 1102.94ms. Allocated memory is still 186.6MB. Free memory was 145.9MB in the beginning and 134.7MB in the end (delta: 11.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,356 INFO L158 Benchmark]: TraceAbstraction took 15606.09ms. Allocated memory was 186.6MB in the beginning and 608.2MB in the end (delta: 421.5MB). Free memory was 133.6MB in the beginning and 274.4MB in the end (delta: -140.8MB). Peak memory consumption was 282.8MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,357 INFO L158 Benchmark]: Witness Printer took 74.81ms. Allocated memory is still 608.2MB. Free memory was 274.4MB in the beginning and 270.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:51:48,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.03ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 71.3MB in the beginning and 151.1MB in the end (delta: -79.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.73ms. Allocated memory is still 186.6MB. Free memory was 151.1MB in the beginning and 148.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.10ms. Allocated memory is still 186.6MB. Free memory was 148.0MB in the beginning and 145.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1102.94ms. Allocated memory is still 186.6MB. Free memory was 145.9MB in the beginning and 134.7MB in the end (delta: 11.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15606.09ms. Allocated memory was 186.6MB in the beginning and 608.2MB in the end (delta: 421.5MB). Free memory was 133.6MB in the beginning and 274.4MB in the end (delta: -140.8MB). Peak memory consumption was 282.8MB. Max. memory is 16.1GB. * Witness Printer took 74.81ms. Allocated memory is still 608.2MB. Free memory was 274.4MB in the beginning and 270.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 717 locations, 72 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.3s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 624 IncrementalHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 224 mSDtfsCounter, 624 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=915occurred in iteration=21, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 3784 NumberOfCodeBlocks, 3784 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3757 ConstructedInterpolants, 0 QuantifiedInterpolants, 4048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:51:48,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e6a25-a2b6-4309-93d4-125261b6c877/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE