./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:38:11,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:38:11,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:38:11,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:38:11,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:38:11,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:38:11,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:38:11,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:38:11,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:38:11,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:38:11,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:38:11,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:38:11,520 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:38:11,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:38:11,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:38:11,526 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:38:11,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:38:11,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:38:11,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:38:11,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:38:11,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:38:11,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:38:11,531 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:38:11,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:38:11,532 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:38:11,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:38:11,532 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:38:11,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:38:11,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:38:11,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:38:11,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:11,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:38:11,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:38:11,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:38:11,537 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:38:11,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:38:11,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:38:11,537 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:38:11,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:38:11,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:38:11,538 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:38:11,539 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2023-11-19 07:38:11,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:38:11,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:38:11,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:38:11,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:38:11,851 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:38:11,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2023-11-19 07:38:14,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:38:15,113 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:38:15,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2023-11-19 07:38:15,131 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/data/c1658532f/bdaa7a0acb804e948bea7aa036cba9e5/FLAG7e6d55e0f [2023-11-19 07:38:15,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/data/c1658532f/bdaa7a0acb804e948bea7aa036cba9e5 [2023-11-19 07:38:15,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:38:15,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:38:15,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:15,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:38:15,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:38:15,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507f68e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15, skipping insertion in model container [2023-11-19 07:38:15,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:38:15,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:15,574 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:38:15,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:15,707 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:38:15,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15 WrapperNode [2023-11-19 07:38:15,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:15,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:15,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:38:15,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:38:15,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,789 INFO L138 Inliner]: procedures = 170, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-11-19 07:38:15,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:15,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:38:15,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:38:15,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:38:15,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:38:15,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:38:15,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:38:15,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:38:15,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2023-11-19 07:38:15,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:15,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:15,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:38:15,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:38:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:38:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:38:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:38:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:38:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:38:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:38:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:38:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:38:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:38:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:38:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:38:15,943 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:38:16,162 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:38:16,164 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:38:16,497 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:38:16,509 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:38:16,509 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 07:38:16,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:16 BoogieIcfgContainer [2023-11-19 07:38:16,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:38:16,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:38:16,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:38:16,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:38:16,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:15" (1/3) ... [2023-11-19 07:38:16,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fa75a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:16, skipping insertion in model container [2023-11-19 07:38:16,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (2/3) ... [2023-11-19 07:38:16,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fa75a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:16, skipping insertion in model container [2023-11-19 07:38:16,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:16" (3/3) ... [2023-11-19 07:38:16,534 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-11-19 07:38:16,552 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:38:16,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:38:16,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:38:16,594 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:38:16,734 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:38:16,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 151 transitions, 309 flow [2023-11-19 07:38:16,923 INFO L124 PetriNetUnfolderBase]: 10/150 cut-off events. [2023-11-19 07:38:16,923 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:38:16,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 150 events. 10/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2023-11-19 07:38:16,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 151 transitions, 309 flow [2023-11-19 07:38:16,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 140 transitions, 283 flow [2023-11-19 07:38:16,943 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:38:16,957 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 140 transitions, 283 flow [2023-11-19 07:38:16,960 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 140 transitions, 283 flow [2023-11-19 07:38:16,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 140 transitions, 283 flow [2023-11-19 07:38:17,037 INFO L124 PetriNetUnfolderBase]: 10/140 cut-off events. [2023-11-19 07:38:17,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:17,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 140 events. 10/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2023-11-19 07:38:17,052 INFO L119 LiptonReduction]: Number of co-enabled transitions 4880 [2023-11-19 07:38:21,339 INFO L134 LiptonReduction]: Checked pairs total: 24720 [2023-11-19 07:38:21,342 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-11-19 07:38:21,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:38:21,382 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=LoopHeads, 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;@68a7c06a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:38:21,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 07:38:21,393 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:38:21,393 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2023-11-19 07:38:21,393 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:21,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:21,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:21,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:21,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:21,403 INFO L85 PathProgramCache]: Analyzing trace with hash 258836220, now seen corresponding path program 1 times [2023-11-19 07:38:21,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:21,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030675594] [2023-11-19 07:38:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:22,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:22,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030675594] [2023-11-19 07:38:22,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030675594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:22,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:22,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651297378] [2023-11-19 07:38:22,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:22,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:22,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:22,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2023-11-19 07:38:22,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:22,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:22,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2023-11-19 07:38:22,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:22,932 INFO L124 PetriNetUnfolderBase]: 135/370 cut-off events. [2023-11-19 07:38:22,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:22,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 370 events. 135/370 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1531 event pairs, 80 based on Foata normal form. 34/399 useless extension candidates. Maximal degree in co-relation 670. Up to 184 conditions per place. [2023-11-19 07:38:22,943 INFO L140 encePairwiseOnDemand]: 226/247 looper letters, 44 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2023-11-19 07:38:22,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 253 flow [2023-11-19 07:38:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:22,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2023-11-19 07:38:22,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2023-11-19 07:38:22,966 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2023-11-19 07:38:22,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2023-11-19 07:38:22,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:22,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2023-11-19 07:38:22,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:22,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:22,991 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:22,993 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 127 flow. Second operand 6 states and 767 transitions. [2023-11-19 07:38:22,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 253 flow [2023-11-19 07:38:22,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:38:23,000 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-11-19 07:38:23,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2023-11-19 07:38:23,006 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-11-19 07:38:23,007 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-11-19 07:38:23,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:23,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:23,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:23,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:38:23,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:23,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:23,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1569150679, now seen corresponding path program 1 times [2023-11-19 07:38:23,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:23,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307093404] [2023-11-19 07:38:23,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:23,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:23,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:23,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307093404] [2023-11-19 07:38:23,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307093404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:23,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:23,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606227090] [2023-11-19 07:38:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:23,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:23,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:23,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:23,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:23,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 247 [2023-11-19 07:38:23,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:23,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:23,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 247 [2023-11-19 07:38:23,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:24,012 INFO L124 PetriNetUnfolderBase]: 284/847 cut-off events. [2023-11-19 07:38:24,012 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-19 07:38:24,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 847 events. 284/847 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4499 event pairs, 48 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 1561. Up to 377 conditions per place. [2023-11-19 07:38:24,019 INFO L140 encePairwiseOnDemand]: 233/247 looper letters, 81 selfloop transitions, 37 changer transitions 0/137 dead transitions. [2023-11-19 07:38:24,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 137 transitions, 564 flow [2023-11-19 07:38:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:24,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:24,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 839 transitions. [2023-11-19 07:38:24,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661268556005398 [2023-11-19 07:38:24,024 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 839 transitions. [2023-11-19 07:38:24,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 839 transitions. [2023-11-19 07:38:24,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:24,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 839 transitions. [2023-11-19 07:38:24,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:24,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:24,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:24,035 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 839 transitions. [2023-11-19 07:38:24,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 137 transitions, 564 flow [2023-11-19 07:38:24,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 137 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:38:24,042 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-11-19 07:38:24,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2023-11-19 07:38:24,043 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-11-19 07:38:24,043 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-11-19 07:38:24,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:24,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:24,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:24,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:38:24,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:24,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:24,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1412678409, now seen corresponding path program 1 times [2023-11-19 07:38:24,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:24,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80252961] [2023-11-19 07:38:24,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:24,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:24,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80252961] [2023-11-19 07:38:24,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80252961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:24,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:24,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17184796] [2023-11-19 07:38:24,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:24,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:24,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:24,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2023-11-19 07:38:24,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:24,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:24,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2023-11-19 07:38:24,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:24,994 INFO L124 PetriNetUnfolderBase]: 624/1438 cut-off events. [2023-11-19 07:38:24,994 INFO L125 PetriNetUnfolderBase]: For 549/564 co-relation queries the response was YES. [2023-11-19 07:38:24,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 1438 events. 624/1438 cut-off events. For 549/564 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7604 event pairs, 341 based on Foata normal form. 0/1390 useless extension candidates. Maximal degree in co-relation 3491. Up to 1190 conditions per place. [2023-11-19 07:38:25,007 INFO L140 encePairwiseOnDemand]: 232/247 looper letters, 95 selfloop transitions, 48 changer transitions 0/151 dead transitions. [2023-11-19 07:38:25,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 151 transitions, 852 flow [2023-11-19 07:38:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2023-11-19 07:38:25,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973009446693657 [2023-11-19 07:38:25,012 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2023-11-19 07:38:25,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2023-11-19 07:38:25,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:25,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2023-11-19 07:38:25,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,021 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,021 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 737 transitions. [2023-11-19 07:38:25,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 151 transitions, 852 flow [2023-11-19 07:38:25,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 151 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:25,031 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 738 flow [2023-11-19 07:38:25,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-11-19 07:38:25,032 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2023-11-19 07:38:25,033 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 738 flow [2023-11-19 07:38:25,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:25,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:25,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:38:25,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:25,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash 937678087, now seen corresponding path program 1 times [2023-11-19 07:38:25,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:25,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19196770] [2023-11-19 07:38:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:25,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:25,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19196770] [2023-11-19 07:38:25,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19196770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:25,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:25,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:25,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114555065] [2023-11-19 07:38:25,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:25,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:25,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:25,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:25,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:25,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 247 [2023-11-19 07:38:25,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 738 flow. Second operand has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:25,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 247 [2023-11-19 07:38:25,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:26,089 INFO L124 PetriNetUnfolderBase]: 540/1355 cut-off events. [2023-11-19 07:38:26,090 INFO L125 PetriNetUnfolderBase]: For 1014/1040 co-relation queries the response was YES. [2023-11-19 07:38:26,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3886 conditions, 1355 events. 540/1355 cut-off events. For 1014/1040 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7690 event pairs, 127 based on Foata normal form. 2/1325 useless extension candidates. Maximal degree in co-relation 3868. Up to 765 conditions per place. [2023-11-19 07:38:26,103 INFO L140 encePairwiseOnDemand]: 233/247 looper letters, 126 selfloop transitions, 75 changer transitions 12/253 dead transitions. [2023-11-19 07:38:26,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 253 transitions, 1736 flow [2023-11-19 07:38:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 838 transitions. [2023-11-19 07:38:26,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5654520917678812 [2023-11-19 07:38:26,107 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 838 transitions. [2023-11-19 07:38:26,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 838 transitions. [2023-11-19 07:38:26,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:26,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 838 transitions. [2023-11-19 07:38:26,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,115 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,115 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 738 flow. Second operand 6 states and 838 transitions. [2023-11-19 07:38:26,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 253 transitions, 1736 flow [2023-11-19 07:38:26,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 253 transitions, 1718 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:26,131 INFO L231 Difference]: Finished difference. Result has 84 places, 200 transitions, 1496 flow [2023-11-19 07:38:26,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1496, PETRI_PLACES=84, PETRI_TRANSITIONS=200} [2023-11-19 07:38:26,132 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-19 07:38:26,132 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 200 transitions, 1496 flow [2023-11-19 07:38:26,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:26,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:26,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:38:26,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:26,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash -813368446, now seen corresponding path program 1 times [2023-11-19 07:38:26,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338643212] [2023-11-19 07:38:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:26,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:26,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:26,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338643212] [2023-11-19 07:38:26,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338643212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:26,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:26,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:26,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746265821] [2023-11-19 07:38:26,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:26,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:26,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:26,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:26,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 247 [2023-11-19 07:38:26,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 200 transitions, 1496 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:26,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 247 [2023-11-19 07:38:26,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:26,463 INFO L124 PetriNetUnfolderBase]: 278/906 cut-off events. [2023-11-19 07:38:26,464 INFO L125 PetriNetUnfolderBase]: For 1339/1387 co-relation queries the response was YES. [2023-11-19 07:38:26,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 906 events. 278/906 cut-off events. For 1339/1387 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5470 event pairs, 25 based on Foata normal form. 9/907 useless extension candidates. Maximal degree in co-relation 2879. Up to 234 conditions per place. [2023-11-19 07:38:26,476 INFO L140 encePairwiseOnDemand]: 240/247 looper letters, 54 selfloop transitions, 7 changer transitions 5/176 dead transitions. [2023-11-19 07:38:26,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 176 transitions, 1328 flow [2023-11-19 07:38:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:26,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:26,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2023-11-19 07:38:26,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5802968960863698 [2023-11-19 07:38:26,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2023-11-19 07:38:26,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2023-11-19 07:38:26,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:26,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2023-11-19 07:38:26,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,484 INFO L175 Difference]: Start difference. First operand has 84 places, 200 transitions, 1496 flow. Second operand 3 states and 430 transitions. [2023-11-19 07:38:26,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 176 transitions, 1328 flow [2023-11-19 07:38:26,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 176 transitions, 1254 flow, removed 37 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:26,504 INFO L231 Difference]: Finished difference. Result has 87 places, 155 transitions, 1031 flow [2023-11-19 07:38:26,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1031, PETRI_PLACES=87, PETRI_TRANSITIONS=155} [2023-11-19 07:38:26,507 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places. [2023-11-19 07:38:26,508 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 155 transitions, 1031 flow [2023-11-19 07:38:26,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:26,509 INFO L208 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] [2023-11-19 07:38:26,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:38:26,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:26,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1677448320, now seen corresponding path program 1 times [2023-11-19 07:38:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:26,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497447092] [2023-11-19 07:38:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:26,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:27,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:27,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497447092] [2023-11-19 07:38:27,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497447092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:27,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:27,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:27,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510386316] [2023-11-19 07:38:27,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:27,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:27,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:27,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:27,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 247 [2023-11-19 07:38:27,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 155 transitions, 1031 flow. Second operand has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:27,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:27,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 247 [2023-11-19 07:38:27,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:28,462 INFO L124 PetriNetUnfolderBase]: 536/1342 cut-off events. [2023-11-19 07:38:28,462 INFO L125 PetriNetUnfolderBase]: For 1592/1594 co-relation queries the response was YES. [2023-11-19 07:38:28,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4835 conditions, 1342 events. 536/1342 cut-off events. For 1592/1594 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7624 event pairs, 236 based on Foata normal form. 18/1359 useless extension candidates. Maximal degree in co-relation 4810. Up to 927 conditions per place. [2023-11-19 07:38:28,477 INFO L140 encePairwiseOnDemand]: 238/247 looper letters, 151 selfloop transitions, 34 changer transitions 0/194 dead transitions. [2023-11-19 07:38:28,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 194 transitions, 1655 flow [2023-11-19 07:38:28,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:38:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:38:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 976 transitions. [2023-11-19 07:38:28,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43904633378317587 [2023-11-19 07:38:28,483 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 976 transitions. [2023-11-19 07:38:28,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 976 transitions. [2023-11-19 07:38:28,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:28,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 976 transitions. [2023-11-19 07:38:28,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.44444444444444) internal successors, (976), 9 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,496 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,496 INFO L175 Difference]: Start difference. First operand has 87 places, 155 transitions, 1031 flow. Second operand 9 states and 976 transitions. [2023-11-19 07:38:28,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 194 transitions, 1655 flow [2023-11-19 07:38:28,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 194 transitions, 1642 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:38:28,521 INFO L231 Difference]: Finished difference. Result has 93 places, 154 transitions, 1088 flow [2023-11-19 07:38:28,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1088, PETRI_PLACES=93, PETRI_TRANSITIONS=154} [2023-11-19 07:38:28,524 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 36 predicate places. [2023-11-19 07:38:28,525 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 154 transitions, 1088 flow [2023-11-19 07:38:28,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:28,526 INFO L208 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] [2023-11-19 07:38:28,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:38:28,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:28,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1473086620, now seen corresponding path program 1 times [2023-11-19 07:38:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877427479] [2023-11-19 07:38:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:28,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:29,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877427479] [2023-11-19 07:38:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877427479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:29,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:29,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:29,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42505977] [2023-11-19 07:38:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:29,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:29,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:29,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-19 07:38:29,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 154 transitions, 1088 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:29,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:29,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-19 07:38:29,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:30,662 INFO L124 PetriNetUnfolderBase]: 532/1366 cut-off events. [2023-11-19 07:38:30,662 INFO L125 PetriNetUnfolderBase]: For 1838/1842 co-relation queries the response was YES. [2023-11-19 07:38:30,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5089 conditions, 1366 events. 532/1366 cut-off events. For 1838/1842 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8101 event pairs, 60 based on Foata normal form. 31/1391 useless extension candidates. Maximal degree in co-relation 5062. Up to 462 conditions per place. [2023-11-19 07:38:30,676 INFO L140 encePairwiseOnDemand]: 238/247 looper letters, 222 selfloop transitions, 33 changer transitions 12/287 dead transitions. [2023-11-19 07:38:30,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 287 transitions, 2444 flow [2023-11-19 07:38:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:38:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:38:30,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1295 transitions. [2023-11-19 07:38:30,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242914979757085 [2023-11-19 07:38:30,682 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1295 transitions. [2023-11-19 07:38:30,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1295 transitions. [2023-11-19 07:38:30,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:30,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1295 transitions. [2023-11-19 07:38:30,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.5) internal successors, (1295), 10 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,696 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,696 INFO L175 Difference]: Start difference. First operand has 93 places, 154 transitions, 1088 flow. Second operand 10 states and 1295 transitions. [2023-11-19 07:38:30,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 287 transitions, 2444 flow [2023-11-19 07:38:30,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 287 transitions, 2290 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-19 07:38:30,716 INFO L231 Difference]: Finished difference. Result has 99 places, 177 transitions, 1334 flow [2023-11-19 07:38:30,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1334, PETRI_PLACES=99, PETRI_TRANSITIONS=177} [2023-11-19 07:38:30,717 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 42 predicate places. [2023-11-19 07:38:30,717 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 177 transitions, 1334 flow [2023-11-19 07:38:30,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:30,720 INFO L208 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] [2023-11-19 07:38:30,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:38:30,721 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:30,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:30,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1649395550, now seen corresponding path program 2 times [2023-11-19 07:38:30,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:30,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524329146] [2023-11-19 07:38:30,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:30,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:31,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:31,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524329146] [2023-11-19 07:38:31,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524329146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:31,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:31,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:31,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882471958] [2023-11-19 07:38:31,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:31,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:31,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:31,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:31,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:32,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-19 07:38:32,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 177 transitions, 1334 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:32,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:32,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-19 07:38:32,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:32,843 INFO L124 PetriNetUnfolderBase]: 549/1445 cut-off events. [2023-11-19 07:38:32,843 INFO L125 PetriNetUnfolderBase]: For 3034/3041 co-relation queries the response was YES. [2023-11-19 07:38:32,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5917 conditions, 1445 events. 549/1445 cut-off events. For 3034/3041 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8911 event pairs, 86 based on Foata normal form. 17/1455 useless extension candidates. Maximal degree in co-relation 5885. Up to 757 conditions per place. [2023-11-19 07:38:32,859 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 159 selfloop transitions, 72 changer transitions 15/266 dead transitions. [2023-11-19 07:38:32,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 266 transitions, 2258 flow [2023-11-19 07:38:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:38:32,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:38:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1191 transitions. [2023-11-19 07:38:32,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357624831309041 [2023-11-19 07:38:32,868 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1191 transitions. [2023-11-19 07:38:32,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1191 transitions. [2023-11-19 07:38:32,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:32,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1191 transitions. [2023-11-19 07:38:32,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 132.33333333333334) internal successors, (1191), 9 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:32,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:32,879 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:32,879 INFO L175 Difference]: Start difference. First operand has 99 places, 177 transitions, 1334 flow. Second operand 9 states and 1191 transitions. [2023-11-19 07:38:32,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 266 transitions, 2258 flow [2023-11-19 07:38:32,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 266 transitions, 2248 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:38:32,917 INFO L231 Difference]: Finished difference. Result has 107 places, 187 transitions, 1670 flow [2023-11-19 07:38:32,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1670, PETRI_PLACES=107, PETRI_TRANSITIONS=187} [2023-11-19 07:38:32,921 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 50 predicate places. [2023-11-19 07:38:32,921 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 187 transitions, 1670 flow [2023-11-19 07:38:32,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:32,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:32,922 INFO L208 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] [2023-11-19 07:38:32,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:38:32,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:32,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1717416484, now seen corresponding path program 3 times [2023-11-19 07:38:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:32,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670134048] [2023-11-19 07:38:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:32,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:33,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:33,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670134048] [2023-11-19 07:38:33,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670134048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:33,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:33,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758757419] [2023-11-19 07:38:33,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:33,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:33,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:33,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:34,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-19 07:38:34,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 187 transitions, 1670 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:34,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:34,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-19 07:38:34,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:35,223 INFO L124 PetriNetUnfolderBase]: 614/1652 cut-off events. [2023-11-19 07:38:35,223 INFO L125 PetriNetUnfolderBase]: For 5173/5178 co-relation queries the response was YES. [2023-11-19 07:38:35,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7322 conditions, 1652 events. 614/1652 cut-off events. For 5173/5178 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10683 event pairs, 78 based on Foata normal form. 22/1663 useless extension candidates. Maximal degree in co-relation 7287. Up to 579 conditions per place. [2023-11-19 07:38:35,243 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 222 selfloop transitions, 98 changer transitions 16/356 dead transitions. [2023-11-19 07:38:35,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 356 transitions, 3503 flow [2023-11-19 07:38:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:38:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:38:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1331 transitions. [2023-11-19 07:38:35,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388663967611336 [2023-11-19 07:38:35,249 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1331 transitions. [2023-11-19 07:38:35,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1331 transitions. [2023-11-19 07:38:35,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:35,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1331 transitions. [2023-11-19 07:38:35,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.1) internal successors, (1331), 10 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:35,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:35,262 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:35,262 INFO L175 Difference]: Start difference. First operand has 107 places, 187 transitions, 1670 flow. Second operand 10 states and 1331 transitions. [2023-11-19 07:38:35,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 356 transitions, 3503 flow [2023-11-19 07:38:35,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 356 transitions, 3430 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:38:35,309 INFO L231 Difference]: Finished difference. Result has 117 places, 229 transitions, 2488 flow [2023-11-19 07:38:35,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1610, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2488, PETRI_PLACES=117, PETRI_TRANSITIONS=229} [2023-11-19 07:38:35,311 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 60 predicate places. [2023-11-19 07:38:35,312 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 229 transitions, 2488 flow [2023-11-19 07:38:35,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:35,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:35,313 INFO L208 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] [2023-11-19 07:38:35,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:38:35,315 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:35,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1491060456, now seen corresponding path program 4 times [2023-11-19 07:38:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:35,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465364037] [2023-11-19 07:38:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:35,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:35,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:35,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465364037] [2023-11-19 07:38:35,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465364037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:35,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:35,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:35,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942935935] [2023-11-19 07:38:35,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:35,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:35,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:35,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:35,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:36,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-19 07:38:36,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 229 transitions, 2488 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:36,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:36,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-19 07:38:36,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:37,834 INFO L124 PetriNetUnfolderBase]: 655/1804 cut-off events. [2023-11-19 07:38:37,834 INFO L125 PetriNetUnfolderBase]: For 8970/8980 co-relation queries the response was YES. [2023-11-19 07:38:37,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8624 conditions, 1804 events. 655/1804 cut-off events. For 8970/8980 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 12097 event pairs, 95 based on Foata normal form. 22/1818 useless extension candidates. Maximal degree in co-relation 8582. Up to 881 conditions per place. [2023-11-19 07:38:37,857 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 202 selfloop transitions, 109 changer transitions 18/349 dead transitions. [2023-11-19 07:38:37,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 349 transitions, 3874 flow [2023-11-19 07:38:37,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:38:37,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:38:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1328 transitions. [2023-11-19 07:38:37,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5376518218623482 [2023-11-19 07:38:37,865 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1328 transitions. [2023-11-19 07:38:37,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1328 transitions. [2023-11-19 07:38:37,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:37,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1328 transitions. [2023-11-19 07:38:37,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.8) internal successors, (1328), 10 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:37,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:37,877 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:37,877 INFO L175 Difference]: Start difference. First operand has 117 places, 229 transitions, 2488 flow. Second operand 10 states and 1328 transitions. [2023-11-19 07:38:37,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 349 transitions, 3874 flow [2023-11-19 07:38:37,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 349 transitions, 3825 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-11-19 07:38:37,949 INFO L231 Difference]: Finished difference. Result has 129 places, 249 transitions, 3150 flow [2023-11-19 07:38:37,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2439, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3150, PETRI_PLACES=129, PETRI_TRANSITIONS=249} [2023-11-19 07:38:37,951 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 72 predicate places. [2023-11-19 07:38:37,952 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 249 transitions, 3150 flow [2023-11-19 07:38:37,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:37,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:37,953 INFO L208 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] [2023-11-19 07:38:37,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:38:37,953 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:37,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:37,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1705655784, now seen corresponding path program 5 times [2023-11-19 07:38:37,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:37,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751184768] [2023-11-19 07:38:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:38,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:38,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751184768] [2023-11-19 07:38:38,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751184768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:38,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:38,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:38,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571331104] [2023-11-19 07:38:38,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:38,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:38,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:38,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:38,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:39,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-19 07:38:39,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 249 transitions, 3150 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:39,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:39,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-19 07:38:39,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:40,472 INFO L124 PetriNetUnfolderBase]: 633/1808 cut-off events. [2023-11-19 07:38:40,472 INFO L125 PetriNetUnfolderBase]: For 11585/11595 co-relation queries the response was YES. [2023-11-19 07:38:40,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9237 conditions, 1808 events. 633/1808 cut-off events. For 11585/11595 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12474 event pairs, 72 based on Foata normal form. 22/1821 useless extension candidates. Maximal degree in co-relation 9189. Up to 745 conditions per place. [2023-11-19 07:38:40,499 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 227 selfloop transitions, 114 changer transitions 19/380 dead transitions. [2023-11-19 07:38:40,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 380 transitions, 4746 flow [2023-11-19 07:38:40,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:38:40,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:38:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1329 transitions. [2023-11-19 07:38:40,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380566801619433 [2023-11-19 07:38:40,505 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1329 transitions. [2023-11-19 07:38:40,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1329 transitions. [2023-11-19 07:38:40,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:40,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1329 transitions. [2023-11-19 07:38:40,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.9) internal successors, (1329), 10 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:40,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:40,516 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:40,516 INFO L175 Difference]: Start difference. First operand has 129 places, 249 transitions, 3150 flow. Second operand 10 states and 1329 transitions. [2023-11-19 07:38:40,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 380 transitions, 4746 flow [2023-11-19 07:38:40,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 380 transitions, 4624 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-11-19 07:38:40,611 INFO L231 Difference]: Finished difference. Result has 133 places, 265 transitions, 3721 flow [2023-11-19 07:38:40,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3022, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3721, PETRI_PLACES=133, PETRI_TRANSITIONS=265} [2023-11-19 07:38:40,614 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 76 predicate places. [2023-11-19 07:38:40,614 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 265 transitions, 3721 flow [2023-11-19 07:38:40,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:40,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:40,615 INFO L208 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] [2023-11-19 07:38:40,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:38:40,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:40,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:40,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1807923741, now seen corresponding path program 1 times [2023-11-19 07:38:40,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:40,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643434341] [2023-11-19 07:38:40,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:40,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:40,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:40,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:40,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643434341] [2023-11-19 07:38:40,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643434341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:40,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:40,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:40,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179913667] [2023-11-19 07:38:40,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:40,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:40,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:40,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:40,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:41,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2023-11-19 07:38:41,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 265 transitions, 3721 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:41,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:41,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2023-11-19 07:38:41,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:41,825 INFO L124 PetriNetUnfolderBase]: 795/2123 cut-off events. [2023-11-19 07:38:41,825 INFO L125 PetriNetUnfolderBase]: For 14775/14795 co-relation queries the response was YES. [2023-11-19 07:38:41,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11352 conditions, 2123 events. 795/2123 cut-off events. For 14775/14795 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14342 event pairs, 252 based on Foata normal form. 7/2094 useless extension candidates. Maximal degree in co-relation 11303. Up to 1670 conditions per place. [2023-11-19 07:38:41,847 INFO L140 encePairwiseOnDemand]: 232/247 looper letters, 187 selfloop transitions, 75 changer transitions 96/368 dead transitions. [2023-11-19 07:38:41,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 368 transitions, 5400 flow [2023-11-19 07:38:41,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2023-11-19 07:38:41,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973009446693657 [2023-11-19 07:38:41,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2023-11-19 07:38:41,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2023-11-19 07:38:41,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:41,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2023-11-19 07:38:41,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:41,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:41,869 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:41,869 INFO L175 Difference]: Start difference. First operand has 133 places, 265 transitions, 3721 flow. Second operand 6 states and 737 transitions. [2023-11-19 07:38:41,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 368 transitions, 5400 flow [2023-11-19 07:38:41,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 368 transitions, 5174 flow, removed 54 selfloop flow, removed 5 redundant places. [2023-11-19 07:38:42,008 INFO L231 Difference]: Finished difference. Result has 138 places, 252 transitions, 3194 flow [2023-11-19 07:38:42,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3574, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3194, PETRI_PLACES=138, PETRI_TRANSITIONS=252} [2023-11-19 07:38:42,009 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 81 predicate places. [2023-11-19 07:38:42,009 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 252 transitions, 3194 flow [2023-11-19 07:38:42,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:42,010 INFO L208 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] [2023-11-19 07:38:42,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:38:42,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:42,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:42,011 INFO L85 PathProgramCache]: Analyzing trace with hash -144290401, now seen corresponding path program 1 times [2023-11-19 07:38:42,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:42,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771320841] [2023-11-19 07:38:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:42,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:42,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771320841] [2023-11-19 07:38:42,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771320841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:42,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:42,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:42,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344140414] [2023-11-19 07:38:42,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:42,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:42,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:42,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:42,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:42,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 247 [2023-11-19 07:38:42,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 252 transitions, 3194 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:42,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 247 [2023-11-19 07:38:42,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:42,519 INFO L124 PetriNetUnfolderBase]: 322/1218 cut-off events. [2023-11-19 07:38:42,519 INFO L125 PetriNetUnfolderBase]: For 10402/10537 co-relation queries the response was YES. [2023-11-19 07:38:42,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6751 conditions, 1218 events. 322/1218 cut-off events. For 10402/10537 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 8484 event pairs, 7 based on Foata normal form. 23/1238 useless extension candidates. Maximal degree in co-relation 6700. Up to 416 conditions per place. [2023-11-19 07:38:42,533 INFO L140 encePairwiseOnDemand]: 239/247 looper letters, 57 selfloop transitions, 10 changer transitions 7/224 dead transitions. [2023-11-19 07:38:42,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 224 transitions, 3002 flow [2023-11-19 07:38:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:42,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2023-11-19 07:38:42,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2023-11-19 07:38:42,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2023-11-19 07:38:42,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2023-11-19 07:38:42,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:42,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2023-11-19 07:38:42,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,541 INFO L175 Difference]: Start difference. First operand has 138 places, 252 transitions, 3194 flow. Second operand 3 states and 423 transitions. [2023-11-19 07:38:42,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 224 transitions, 3002 flow [2023-11-19 07:38:42,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 224 transitions, 2534 flow, removed 109 selfloop flow, removed 14 redundant places. [2023-11-19 07:38:42,619 INFO L231 Difference]: Finished difference. Result has 124 places, 198 transitions, 2156 flow [2023-11-19 07:38:42,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2156, PETRI_PLACES=124, PETRI_TRANSITIONS=198} [2023-11-19 07:38:42,620 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 67 predicate places. [2023-11-19 07:38:42,620 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 198 transitions, 2156 flow [2023-11-19 07:38:42,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:42,621 INFO L208 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] [2023-11-19 07:38:42,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:38:42,621 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:42,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1235004308, now seen corresponding path program 1 times [2023-11-19 07:38:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:42,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612044269] [2023-11-19 07:38:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:42,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:42,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:42,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:42,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612044269] [2023-11-19 07:38:42,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612044269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:42,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:42,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:38:42,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382800668] [2023-11-19 07:38:42,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:42,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:38:42,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:42,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:38:42,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:38:42,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 247 [2023-11-19 07:38:42,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 198 transitions, 2156 flow. Second operand has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:42,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:42,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 247 [2023-11-19 07:38:42,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:43,044 INFO L124 PetriNetUnfolderBase]: 150/653 cut-off events. [2023-11-19 07:38:43,044 INFO L125 PetriNetUnfolderBase]: For 4222/4299 co-relation queries the response was YES. [2023-11-19 07:38:43,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 653 events. 150/653 cut-off events. For 4222/4299 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3815 event pairs, 3 based on Foata normal form. 16/666 useless extension candidates. Maximal degree in co-relation 3079. Up to 157 conditions per place. [2023-11-19 07:38:43,051 INFO L140 encePairwiseOnDemand]: 243/247 looper letters, 29 selfloop transitions, 7 changer transitions 1/187 dead transitions. [2023-11-19 07:38:43,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 187 transitions, 2098 flow [2023-11-19 07:38:43,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:38:43,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:38:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2023-11-19 07:38:43,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5435222672064778 [2023-11-19 07:38:43,055 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2023-11-19 07:38:43,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2023-11-19 07:38:43,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:43,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2023-11-19 07:38:43,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:43,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 247.0) internal successors, (1235), 5 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:43,060 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 247.0) internal successors, (1235), 5 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:43,060 INFO L175 Difference]: Start difference. First operand has 124 places, 198 transitions, 2156 flow. Second operand 4 states and 537 transitions. [2023-11-19 07:38:43,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 187 transitions, 2098 flow [2023-11-19 07:38:43,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 187 transitions, 1964 flow, removed 6 selfloop flow, removed 8 redundant places. [2023-11-19 07:38:43,105 INFO L231 Difference]: Finished difference. Result has 117 places, 186 transitions, 1896 flow [2023-11-19 07:38:43,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1890, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1896, PETRI_PLACES=117, PETRI_TRANSITIONS=186} [2023-11-19 07:38:43,106 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 60 predicate places. [2023-11-19 07:38:43,106 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 186 transitions, 1896 flow [2023-11-19 07:38:43,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:43,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:43,107 INFO L208 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] [2023-11-19 07:38:43,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:38:43,107 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-19 07:38:43,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash -811234902, now seen corresponding path program 2 times [2023-11-19 07:38:43,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:43,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976380226] [2023-11-19 07:38:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:43,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:43,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:43,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976380226] [2023-11-19 07:38:43,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976380226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:43,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:43,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:38:43,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763720091] [2023-11-19 07:38:43,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:43,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:38:43,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:43,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:38:43,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:38:44,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 247 [2023-11-19 07:38:44,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 186 transitions, 1896 flow. Second operand has 11 states, 11 states have (on average 103.36363636363636) internal successors, (1137), 11 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:44,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:44,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 247 [2023-11-19 07:38:44,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:44,836 INFO L124 PetriNetUnfolderBase]: 288/853 cut-off events. [2023-11-19 07:38:44,862 INFO L125 PetriNetUnfolderBase]: For 4915/4920 co-relation queries the response was YES. [2023-11-19 07:38:44,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4474 conditions, 853 events. 288/853 cut-off events. For 4915/4920 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4554 event pairs, 91 based on Foata normal form. 20/873 useless extension candidates. Maximal degree in co-relation 4432. Up to 543 conditions per place. [2023-11-19 07:38:44,868 INFO L140 encePairwiseOnDemand]: 239/247 looper letters, 0 selfloop transitions, 0 changer transitions 220/220 dead transitions. [2023-11-19 07:38:44,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 220 transitions, 2714 flow [2023-11-19 07:38:44,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:38:44,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:38:44,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 960 transitions. [2023-11-19 07:38:44,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318488529014845 [2023-11-19 07:38:44,875 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 960 transitions. [2023-11-19 07:38:44,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 960 transitions. [2023-11-19 07:38:44,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:44,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 960 transitions. [2023-11-19 07:38:44,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.66666666666667) internal successors, (960), 9 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:44,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:44,888 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:44,888 INFO L175 Difference]: Start difference. First operand has 117 places, 186 transitions, 1896 flow. Second operand 9 states and 960 transitions. [2023-11-19 07:38:44,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 220 transitions, 2714 flow [2023-11-19 07:38:44,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 220 transitions, 2688 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:38:44,925 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2023-11-19 07:38:44,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1866, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2023-11-19 07:38:44,927 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 63 predicate places. [2023-11-19 07:38:44,928 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2023-11-19 07:38:44,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 103.36363636363636) internal successors, (1137), 11 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:44,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-11-19 07:38:44,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-19 07:38:44,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-11-19 07:38:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-19 07:38:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-19 07:38:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-19 07:38:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-19 07:38:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-19 07:38:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-19 07:38:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-19 07:38:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-19 07:38:44,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:38:44,940 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:44,947 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:38:44,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:38:44,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:44 BasicIcfg [2023-11-19 07:38:44,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:38:44,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:38:44,952 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:38:44,953 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:38:44,953 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:16" (3/4) ... [2023-11-19 07:38:44,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:38:44,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 07:38:44,966 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 07:38:44,967 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:38:44,967 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:38:44,967 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:38:45,076 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:38:45,076 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:38:45,076 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:38:45,077 INFO L158 Benchmark]: Toolchain (without parser) took 29925.68ms. Allocated memory was 148.9MB in the beginning and 415.2MB in the end (delta: 266.3MB). Free memory was 104.7MB in the beginning and 357.5MB in the end (delta: -252.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,078 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 148.9MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:45,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.24ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 84.2MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,079 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.01ms. Allocated memory is still 148.9MB. Free memory was 84.2MB in the beginning and 82.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,079 INFO L158 Benchmark]: Boogie Preprocessor took 45.35ms. Allocated memory is still 148.9MB. Free memory was 82.2MB in the beginning and 80.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,080 INFO L158 Benchmark]: RCFGBuilder took 677.30ms. Allocated memory is still 148.9MB. Free memory was 79.6MB in the beginning and 61.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,080 INFO L158 Benchmark]: TraceAbstraction took 28434.32ms. Allocated memory was 148.9MB in the beginning and 415.2MB in the end (delta: 266.3MB). Free memory was 60.7MB in the beginning and 361.7MB in the end (delta: -300.9MB). Peak memory consumption was 199.2MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,081 INFO L158 Benchmark]: Witness Printer took 124.50ms. Allocated memory is still 415.2MB. Free memory was 361.7MB in the beginning and 357.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:38:45,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 148.9MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.24ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 84.2MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.01ms. Allocated memory is still 148.9MB. Free memory was 84.2MB in the beginning and 82.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.35ms. Allocated memory is still 148.9MB. Free memory was 82.2MB in the beginning and 80.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 677.30ms. Allocated memory is still 148.9MB. Free memory was 79.6MB in the beginning and 61.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 28434.32ms. Allocated memory was 148.9MB in the beginning and 415.2MB in the end (delta: 266.3MB). Free memory was 60.7MB in the beginning and 361.7MB in the end (delta: -300.9MB). Peak memory consumption was 199.2MB. Max. memory is 16.1GB. * Witness Printer took 124.50ms. Allocated memory is still 415.2MB. Free memory was 361.7MB in the beginning and 357.5MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 134 PlacesBefore, 57 PlacesAfterwards, 140 TransitionsBefore, 62 TransitionsAfterwards, 4880 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 96 TotalNumberOfCompositions, 24720 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4400, independent: 3695, independent conditional: 0, independent unconditional: 3695, dependent: 705, dependent conditional: 0, dependent unconditional: 705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2240, independent: 2156, independent conditional: 0, independent unconditional: 2156, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4400, independent: 1539, independent conditional: 0, independent unconditional: 1539, dependent: 621, dependent conditional: 0, dependent unconditional: 621, unknown: 2240, unknown conditional: 0, unknown unconditional: 2240] , Statistics on independence cache: Total cache size (in pairs): 192, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: 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 3 procedures, 199 locations, 11 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: 28.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3569 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2777 mSDsluCounter, 1190 SdHoareTripleChecker+Invalid, 8.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1144 mSDsCounter, 973 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10717 IncrementalHoareTripleChecker+Invalid, 11690 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 973 mSolverCounterUnsat, 46 mSDtfsCounter, 10717 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3721occurred in iteration=11, InterpolantAutomatonStates: 107, 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, 0.2s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 3539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:38:45,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09780363-85c5-49d7-baa4-dca63b27abd2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE