./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6b55d0b1c42ab7aaefa2efb35454af77e64d43e1c106bfebef7445a043c9409 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:52:03,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:52:03,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:52:03,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:52:03,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:52:03,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:52:03,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:52:03,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:52:03,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:52:03,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:52:03,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:52:03,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:52:03,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:52:03,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:52:03,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:52:03,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:52:03,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:52:03,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:52:03,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:52:03,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:52:03,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:52:03,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:52:03,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:52:03,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:52:03,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:52:03,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:52:03,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:52:03,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:52:03,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:52:03,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:52:03,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:52:03,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:52:03,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:52:03,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:52:03,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:52:03,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:52:03,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:52:03,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:52:03,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:52:03,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:52:03,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:52:03,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:52:03,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:52:03,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:52:03,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:52:03,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:52:03,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:52:03,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:52:03,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:52:03,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:52:03,725 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:52:03,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:52:03,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:52:03,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:52:03,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:52:03,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:52:03,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:52:03,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:52:03,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:52:03,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:52:03,727 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:52:03,728 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:52:03,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:52:03,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:52:03,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:52:03,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:52:03,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:52:03,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:52:03,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:03,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:52:03,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:52:03,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:52:03,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:52:03,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:52:03,731 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:52:03,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:52:03,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:52:03,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6b55d0b1c42ab7aaefa2efb35454af77e64d43e1c106bfebef7445a043c9409 [2022-11-18 20:52:04,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:52:04,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:52:04,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:52:04,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:52:04,060 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:52:04,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2022-11-18 20:52:04,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/data/d2542bf1e/f10a91bb0dea473da22f2f580bf516bb/FLAG6feabc22b [2022-11-18 20:52:04,682 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:52:04,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2022-11-18 20:52:04,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/data/d2542bf1e/f10a91bb0dea473da22f2f580bf516bb/FLAG6feabc22b [2022-11-18 20:52:05,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/data/d2542bf1e/f10a91bb0dea473da22f2f580bf516bb [2022-11-18 20:52:05,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:52:05,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:52:05,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:05,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:52:05,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:52:05,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11bfb252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05, skipping insertion in model container [2022-11-18 20:52:05,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:52:05,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:52:05,467 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-11-18 20:52:05,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:05,478 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:52:05,558 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-11-18 20:52:05,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:05,573 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:52:05,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05 WrapperNode [2022-11-18 20:52:05,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:05,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:05,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:52:05,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:52:05,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,680 INFO L138 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 656 [2022-11-18 20:52:05,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:05,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:52:05,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:52:05,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:52:05,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,752 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:52:05,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:52:05,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:52:05,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:52:05,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (1/1) ... [2022-11-18 20:52:05,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:05,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:05,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:52:05,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09118f61-295a-4a5b-bcef-c10ba0eae178/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:52:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:52:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:52:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:52:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:52:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:52:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:52:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:52:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:52:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:52:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:52:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:52:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:52:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:52:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:52:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:52:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:52:05,874 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:52:06,108 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:52:06,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:52:07,114 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:52:07,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:52:07,632 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:52:07,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:07 BoogieIcfgContainer [2022-11-18 20:52:07,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:52:07,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:52:07,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:52:07,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:52:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:52:05" (1/3) ... [2022-11-18 20:52:07,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4fbc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:07, skipping insertion in model container [2022-11-18 20:52:07,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:05" (2/3) ... [2022-11-18 20:52:07,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4fbc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:07, skipping insertion in model container [2022-11-18 20:52:07,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:07" (3/3) ... [2022-11-18 20:52:07,651 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-11-18 20:52:07,666 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:52:07,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:52:07,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 114 error locations. [2022-11-18 20:52:07,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:52:07,824 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:52:07,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 368 places, 366 transitions, 756 flow [2022-11-18 20:52:08,032 INFO L130 PetriNetUnfolder]: 8/363 cut-off events. [2022-11-18 20:52:08,036 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:52:08,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 363 events. 8/363 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 710 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 270. Up to 2 conditions per place. [2022-11-18 20:52:08,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 368 places, 366 transitions, 756 flow [2022-11-18 20:52:08,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 343 transitions, 704 flow [2022-11-18 20:52:08,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:08,098 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35e3b56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:08,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 210 error locations. [2022-11-18 20:52:08,105 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 20:52:08,105 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:08,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:08,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:08,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:08,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:08,113 INFO L85 PathProgramCache]: Analyzing trace with hash -779483935, now seen corresponding path program 1 times [2022-11-18 20:52:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:08,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418791620] [2022-11-18 20:52:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:08,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:08,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418791620] [2022-11-18 20:52:08,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418791620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:08,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:08,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:08,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193998127] [2022-11-18 20:52:08,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:08,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:08,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:08,488 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:08,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 343 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:08,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:08,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:08,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:11,332 INFO L130 PetriNetUnfolder]: 4542/7964 cut-off events. [2022-11-18 20:52:11,333 INFO L131 PetriNetUnfolder]: For 732/732 co-relation queries the response was YES. [2022-11-18 20:52:11,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15624 conditions, 7964 events. 4542/7964 cut-off events. For 732/732 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49827 event pairs, 4536 based on Foata normal form. 1/7893 useless extension candidates. Maximal degree in co-relation 15243. Up to 7105 conditions per place. [2022-11-18 20:52:11,428 INFO L137 encePairwiseOnDemand]: 269/366 looper letters, 48 selfloop transitions, 2 changer transitions 1/248 dead transitions. [2022-11-18 20:52:11,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 248 transitions, 614 flow [2022-11-18 20:52:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2022-11-18 20:52:11,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7304189435336976 [2022-11-18 20:52:11,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2022-11-18 20:52:11,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2022-11-18 20:52:11,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:11,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2022-11-18 20:52:11,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:11,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:11,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:11,485 INFO L175 Difference]: Start difference. First operand has 346 places, 343 transitions, 704 flow. Second operand 3 states and 802 transitions. [2022-11-18 20:52:11,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 248 transitions, 614 flow [2022-11-18 20:52:11,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 248 transitions, 602 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:52:11,505 INFO L231 Difference]: Finished difference. Result has 248 places, 247 transitions, 504 flow [2022-11-18 20:52:11,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=248, PETRI_TRANSITIONS=247} [2022-11-18 20:52:11,514 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -98 predicate places. [2022-11-18 20:52:11,514 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 247 transitions, 504 flow [2022-11-18 20:52:11,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:11,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:11,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:11,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:52:11,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:11,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -229080111, now seen corresponding path program 1 times [2022-11-18 20:52:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:11,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452286836] [2022-11-18 20:52:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:11,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:11,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:11,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452286836] [2022-11-18 20:52:11,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452286836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:11,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:11,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:11,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940465885] [2022-11-18 20:52:11,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:11,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:11,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:11,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:11,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:11,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:11,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 247 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:11,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:11,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:11,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:13,714 INFO L130 PetriNetUnfolder]: 4542/7962 cut-off events. [2022-11-18 20:52:13,714 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:13,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15256 conditions, 7962 events. 4542/7962 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49786 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15219. Up to 7105 conditions per place. [2022-11-18 20:52:13,791 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2022-11-18 20:52:13,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 246 transitions, 602 flow [2022-11-18 20:52:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:13,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-18 20:52:13,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-18 20:52:13,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-18 20:52:13,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-18 20:52:13,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:13,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-18 20:52:13,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:13,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:13,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:13,803 INFO L175 Difference]: Start difference. First operand has 248 places, 247 transitions, 504 flow. Second operand 3 states and 708 transitions. [2022-11-18 20:52:13,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 246 transitions, 602 flow [2022-11-18 20:52:13,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 246 transitions, 598 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:13,813 INFO L231 Difference]: Finished difference. Result has 246 places, 246 transitions, 502 flow [2022-11-18 20:52:13,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=246, PETRI_TRANSITIONS=246} [2022-11-18 20:52:13,814 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -100 predicate places. [2022-11-18 20:52:13,815 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 246 transitions, 502 flow [2022-11-18 20:52:13,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:13,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:13,816 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:13,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:52:13,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:13,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:13,818 INFO L85 PathProgramCache]: Analyzing trace with hash 338375865, now seen corresponding path program 1 times [2022-11-18 20:52:13,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:13,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273916789] [2022-11-18 20:52:13,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:13,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:13,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:13,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:13,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273916789] [2022-11-18 20:52:13,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273916789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:13,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:13,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:13,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875117120] [2022-11-18 20:52:13,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:13,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:13,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:13,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:13,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:13,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 246 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:13,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:13,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:13,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:15,739 INFO L130 PetriNetUnfolder]: 4542/7961 cut-off events. [2022-11-18 20:52:15,739 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:15,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15255 conditions, 7961 events. 4542/7961 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49975 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15212. Up to 7105 conditions per place. [2022-11-18 20:52:15,827 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/245 dead transitions. [2022-11-18 20:52:15,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 245 transitions, 600 flow [2022-11-18 20:52:15,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-18 20:52:15,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-18 20:52:15,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-18 20:52:15,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-18 20:52:15,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:15,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-18 20:52:15,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:15,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:15,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:15,838 INFO L175 Difference]: Start difference. First operand has 246 places, 246 transitions, 502 flow. Second operand 3 states and 708 transitions. [2022-11-18 20:52:15,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 245 transitions, 600 flow [2022-11-18 20:52:15,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 245 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:15,845 INFO L231 Difference]: Finished difference. Result has 245 places, 245 transitions, 500 flow [2022-11-18 20:52:15,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=245, PETRI_TRANSITIONS=245} [2022-11-18 20:52:15,846 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -101 predicate places. [2022-11-18 20:52:15,847 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 245 transitions, 500 flow [2022-11-18 20:52:15,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:15,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:15,848 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:15,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:52:15,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:15,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1760559424, now seen corresponding path program 1 times [2022-11-18 20:52:15,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:15,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652822102] [2022-11-18 20:52:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:15,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:15,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:15,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652822102] [2022-11-18 20:52:15,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652822102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:15,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:15,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825759828] [2022-11-18 20:52:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:15,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:15,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:15,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 245 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:15,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:15,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:15,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:17,716 INFO L130 PetriNetUnfolder]: 4542/7960 cut-off events. [2022-11-18 20:52:17,716 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:17,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15254 conditions, 7960 events. 4542/7960 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49923 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15205. Up to 7105 conditions per place. [2022-11-18 20:52:17,782 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2022-11-18 20:52:17,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 244 transitions, 598 flow [2022-11-18 20:52:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:17,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-18 20:52:17,785 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-18 20:52:17,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-18 20:52:17,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-18 20:52:17,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:17,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-18 20:52:17,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:17,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:17,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:17,796 INFO L175 Difference]: Start difference. First operand has 245 places, 245 transitions, 500 flow. Second operand 3 states and 708 transitions. [2022-11-18 20:52:17,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 244 transitions, 598 flow [2022-11-18 20:52:17,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 244 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:17,807 INFO L231 Difference]: Finished difference. Result has 244 places, 244 transitions, 498 flow [2022-11-18 20:52:17,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=244} [2022-11-18 20:52:17,809 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -102 predicate places. [2022-11-18 20:52:17,810 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 244 transitions, 498 flow [2022-11-18 20:52:17,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:17,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:17,811 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:17,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:52:17,811 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:17,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash 890014682, now seen corresponding path program 1 times [2022-11-18 20:52:17,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:17,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890492132] [2022-11-18 20:52:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:17,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:17,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:17,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890492132] [2022-11-18 20:52:17,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890492132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:17,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:17,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:17,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170152140] [2022-11-18 20:52:17,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:17,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:17,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:17,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:17,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:17,903 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:17,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 244 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:17,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:17,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:17,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:19,570 INFO L130 PetriNetUnfolder]: 4542/7959 cut-off events. [2022-11-18 20:52:19,570 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:19,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15253 conditions, 7959 events. 4542/7959 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49878 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15197. Up to 7105 conditions per place. [2022-11-18 20:52:19,628 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2022-11-18 20:52:19,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 243 transitions, 596 flow [2022-11-18 20:52:19,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:19,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-18 20:52:19,631 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-18 20:52:19,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-18 20:52:19,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-18 20:52:19,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:19,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-18 20:52:19,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:19,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:19,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:19,638 INFO L175 Difference]: Start difference. First operand has 244 places, 244 transitions, 498 flow. Second operand 3 states and 708 transitions. [2022-11-18 20:52:19,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 243 transitions, 596 flow [2022-11-18 20:52:19,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 243 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:19,643 INFO L231 Difference]: Finished difference. Result has 243 places, 243 transitions, 496 flow [2022-11-18 20:52:19,644 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=243, PETRI_TRANSITIONS=243} [2022-11-18 20:52:19,645 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -103 predicate places. [2022-11-18 20:52:19,645 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 243 transitions, 496 flow [2022-11-18 20:52:19,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:19,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:19,647 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:19,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:52:19,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1605997956, now seen corresponding path program 1 times [2022-11-18 20:52:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:19,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436584612] [2022-11-18 20:52:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:19,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:19,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:19,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436584612] [2022-11-18 20:52:19,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436584612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:19,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:19,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:19,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878747053] [2022-11-18 20:52:19,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:19,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:19,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:19,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:19,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:19,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 243 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:19,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:19,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:19,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:21,139 INFO L130 PetriNetUnfolder]: 4542/7958 cut-off events. [2022-11-18 20:52:21,139 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:21,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15252 conditions, 7958 events. 4542/7958 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49919 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15189. Up to 7105 conditions per place. [2022-11-18 20:52:21,198 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-18 20:52:21,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 242 transitions, 594 flow [2022-11-18 20:52:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:21,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-18 20:52:21,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-18 20:52:21,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-18 20:52:21,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-18 20:52:21,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:21,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-18 20:52:21,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:21,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:21,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:21,208 INFO L175 Difference]: Start difference. First operand has 243 places, 243 transitions, 496 flow. Second operand 3 states and 708 transitions. [2022-11-18 20:52:21,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 242 transitions, 594 flow [2022-11-18 20:52:21,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 242 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:21,212 INFO L231 Difference]: Finished difference. Result has 242 places, 242 transitions, 494 flow [2022-11-18 20:52:21,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2022-11-18 20:52:21,214 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -104 predicate places. [2022-11-18 20:52:21,214 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 494 flow [2022-11-18 20:52:21,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:21,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:21,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:21,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:52:21,215 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash 280285212, now seen corresponding path program 1 times [2022-11-18 20:52:21,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:21,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293187113] [2022-11-18 20:52:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:21,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:21,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:21,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293187113] [2022-11-18 20:52:21,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293187113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:21,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:21,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:21,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148879771] [2022-11-18 20:52:21,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:21,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:21,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:21,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:21,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:21,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 366 [2022-11-18 20:52:21,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:21,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:21,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 366 [2022-11-18 20:52:21,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:22,934 INFO L130 PetriNetUnfolder]: 4542/7957 cut-off events. [2022-11-18 20:52:22,935 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:22,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15253 conditions, 7957 events. 4542/7957 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49910 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15183. Up to 7107 conditions per place. [2022-11-18 20:52:22,987 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 50 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-11-18 20:52:22,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 241 transitions, 596 flow [2022-11-18 20:52:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2022-11-18 20:52:22,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6384335154826958 [2022-11-18 20:52:22,990 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 701 transitions. [2022-11-18 20:52:22,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 701 transitions. [2022-11-18 20:52:22,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:22,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 701 transitions. [2022-11-18 20:52:22,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:22,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:22,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:22,997 INFO L175 Difference]: Start difference. First operand has 242 places, 242 transitions, 494 flow. Second operand 3 states and 701 transitions. [2022-11-18 20:52:22,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 241 transitions, 596 flow [2022-11-18 20:52:22,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 241 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:23,002 INFO L231 Difference]: Finished difference. Result has 241 places, 241 transitions, 492 flow [2022-11-18 20:52:23,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=241, PETRI_TRANSITIONS=241} [2022-11-18 20:52:23,003 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -105 predicate places. [2022-11-18 20:52:23,003 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 241 transitions, 492 flow [2022-11-18 20:52:23,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:23,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:23,004 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:23,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:52:23,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:23,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash 42008245, now seen corresponding path program 1 times [2022-11-18 20:52:23,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:23,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33089592] [2022-11-18 20:52:23,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:23,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:23,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:23,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:23,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33089592] [2022-11-18 20:52:23,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33089592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:23,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:23,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:23,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180992925] [2022-11-18 20:52:23,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:23,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:23,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:23,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:23,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:23,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 241 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:23,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:23,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:23,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:24,463 INFO L130 PetriNetUnfolder]: 4542/7956 cut-off events. [2022-11-18 20:52:24,463 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:24,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15247 conditions, 7956 events. 4542/7956 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49770 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15170. Up to 7102 conditions per place. [2022-11-18 20:52:24,508 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 45 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-18 20:52:24,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 240 transitions, 584 flow [2022-11-18 20:52:24,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:24,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-18 20:52:24,511 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502732240437158 [2022-11-18 20:52:24,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-18 20:52:24,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-18 20:52:24,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:24,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-18 20:52:24,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:24,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:24,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:24,517 INFO L175 Difference]: Start difference. First operand has 241 places, 241 transitions, 492 flow. Second operand 3 states and 714 transitions. [2022-11-18 20:52:24,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 240 transitions, 584 flow [2022-11-18 20:52:24,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 240 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:24,521 INFO L231 Difference]: Finished difference. Result has 240 places, 240 transitions, 490 flow [2022-11-18 20:52:24,522 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=240} [2022-11-18 20:52:24,522 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -106 predicate places. [2022-11-18 20:52:24,523 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 240 transitions, 490 flow [2022-11-18 20:52:24,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:24,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:24,523 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:24,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:52:24,524 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:24,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:24,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1532752493, now seen corresponding path program 1 times [2022-11-18 20:52:24,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:24,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973022916] [2022-11-18 20:52:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:24,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:24,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:24,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973022916] [2022-11-18 20:52:24,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973022916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:24,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:24,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:24,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443630932] [2022-11-18 20:52:24,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:24,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:24,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:24,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:24,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:24,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 240 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:24,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:24,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:24,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:26,017 INFO L130 PetriNetUnfolder]: 4542/7955 cut-off events. [2022-11-18 20:52:26,017 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:26,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15246 conditions, 7955 events. 4542/7955 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49954 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15162. Up to 7102 conditions per place. [2022-11-18 20:52:26,087 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 45 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2022-11-18 20:52:26,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 239 transitions, 582 flow [2022-11-18 20:52:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:26,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-18 20:52:26,090 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502732240437158 [2022-11-18 20:52:26,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-18 20:52:26,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-18 20:52:26,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:26,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-18 20:52:26,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:26,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:26,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:26,098 INFO L175 Difference]: Start difference. First operand has 240 places, 240 transitions, 490 flow. Second operand 3 states and 714 transitions. [2022-11-18 20:52:26,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 239 transitions, 582 flow [2022-11-18 20:52:26,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 239 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:26,105 INFO L231 Difference]: Finished difference. Result has 239 places, 239 transitions, 488 flow [2022-11-18 20:52:26,105 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=239, PETRI_TRANSITIONS=239} [2022-11-18 20:52:26,106 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -107 predicate places. [2022-11-18 20:52:26,106 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 239 transitions, 488 flow [2022-11-18 20:52:26,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:26,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:26,107 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:26,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:52:26,107 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:26,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2141683476, now seen corresponding path program 1 times [2022-11-18 20:52:26,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:26,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361967393] [2022-11-18 20:52:26,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:26,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:26,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:26,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361967393] [2022-11-18 20:52:26,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361967393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:26,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:26,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:26,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794743463] [2022-11-18 20:52:26,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:26,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:26,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:26,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:26,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:26,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:26,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 239 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:26,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:26,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:26,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:27,769 INFO L130 PetriNetUnfolder]: 4542/7954 cut-off events. [2022-11-18 20:52:27,770 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-18 20:52:27,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15245 conditions, 7954 events. 4542/7954 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49847 event pairs, 4536 based on Foata normal form. 0/7892 useless extension candidates. Maximal degree in co-relation 15154. Up to 7102 conditions per place. [2022-11-18 20:52:27,811 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 45 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2022-11-18 20:52:27,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 238 transitions, 580 flow [2022-11-18 20:52:27,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-18 20:52:27,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502732240437158 [2022-11-18 20:52:27,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-18 20:52:27,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-18 20:52:27,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:27,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-18 20:52:27,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:27,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:27,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:27,822 INFO L175 Difference]: Start difference. First operand has 239 places, 239 transitions, 488 flow. Second operand 3 states and 714 transitions. [2022-11-18 20:52:27,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 238 transitions, 580 flow [2022-11-18 20:52:27,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 238 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:27,827 INFO L231 Difference]: Finished difference. Result has 238 places, 238 transitions, 486 flow [2022-11-18 20:52:27,828 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=238, PETRI_TRANSITIONS=238} [2022-11-18 20:52:27,828 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -108 predicate places. [2022-11-18 20:52:27,829 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 238 transitions, 486 flow [2022-11-18 20:52:27,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:27,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:27,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:27,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:52:27,830 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1335769916, now seen corresponding path program 1 times [2022-11-18 20:52:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:27,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057449456] [2022-11-18 20:52:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:27,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:27,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:27,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:27,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057449456] [2022-11-18 20:52:27,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057449456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:27,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:27,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:27,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645248981] [2022-11-18 20:52:27,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:27,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:27,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:27,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:27,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:27,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-18 20:52:27,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 238 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:27,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:27,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-18 20:52:27,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:29,362 INFO L130 PetriNetUnfolder]: 4798/9716 cut-off events. [2022-11-18 20:52:29,362 INFO L131 PetriNetUnfolder]: For 209/248 co-relation queries the response was YES. [2022-11-18 20:52:29,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17435 conditions, 9716 events. 4798/9716 cut-off events. For 209/248 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 71660 event pairs, 2797 based on Foata normal form. 1/9523 useless extension candidates. Maximal degree in co-relation 17336. Up to 4420 conditions per place. [2022-11-18 20:52:29,414 INFO L137 encePairwiseOnDemand]: 356/366 looper letters, 78 selfloop transitions, 7 changer transitions 3/276 dead transitions. [2022-11-18 20:52:29,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 276 transitions, 740 flow [2022-11-18 20:52:29,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2022-11-18 20:52:29,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6794171220400729 [2022-11-18 20:52:29,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 746 transitions. [2022-11-18 20:52:29,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 746 transitions. [2022-11-18 20:52:29,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:29,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 746 transitions. [2022-11-18 20:52:29,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:29,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:29,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:29,424 INFO L175 Difference]: Start difference. First operand has 238 places, 238 transitions, 486 flow. Second operand 3 states and 746 transitions. [2022-11-18 20:52:29,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 276 transitions, 740 flow [2022-11-18 20:52:29,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 276 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:29,429 INFO L231 Difference]: Finished difference. Result has 238 places, 239 transitions, 523 flow [2022-11-18 20:52:29,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=238, PETRI_TRANSITIONS=239} [2022-11-18 20:52:29,430 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -108 predicate places. [2022-11-18 20:52:29,431 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 239 transitions, 523 flow [2022-11-18 20:52:29,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:29,431 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:29,431 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:29,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:52:29,432 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:29,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1876628350, now seen corresponding path program 1 times [2022-11-18 20:52:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:29,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548820754] [2022-11-18 20:52:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:29,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:29,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:29,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548820754] [2022-11-18 20:52:29,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548820754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:29,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:29,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:29,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857158627] [2022-11-18 20:52:29,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:29,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:29,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:29,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:29,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:29,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:29,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 239 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:29,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:29,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:29,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:32,069 INFO L130 PetriNetUnfolder]: 8286/15174 cut-off events. [2022-11-18 20:52:32,069 INFO L131 PetriNetUnfolder]: For 2941/3019 co-relation queries the response was YES. [2022-11-18 20:52:32,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32381 conditions, 15174 events. 8286/15174 cut-off events. For 2941/3019 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 114566 event pairs, 2787 based on Foata normal form. 0/14956 useless extension candidates. Maximal degree in co-relation 26492. Up to 7078 conditions per place. [2022-11-18 20:52:32,208 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 93 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2022-11-18 20:52:32,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 285 transitions, 852 flow [2022-11-18 20:52:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-18 20:52:32,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857923497267759 [2022-11-18 20:52:32,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-18 20:52:32,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-18 20:52:32,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:32,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-18 20:52:32,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,218 INFO L175 Difference]: Start difference. First operand has 238 places, 239 transitions, 523 flow. Second operand 3 states and 753 transitions. [2022-11-18 20:52:32,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 285 transitions, 852 flow [2022-11-18 20:52:32,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 285 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:32,343 INFO L231 Difference]: Finished difference. Result has 236 places, 242 transitions, 543 flow [2022-11-18 20:52:32,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=236, PETRI_TRANSITIONS=242} [2022-11-18 20:52:32,346 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -110 predicate places. [2022-11-18 20:52:32,346 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 242 transitions, 543 flow [2022-11-18 20:52:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:32,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:52:32,348 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,348 INFO L85 PathProgramCache]: Analyzing trace with hash -450223959, now seen corresponding path program 1 times [2022-11-18 20:52:32,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323268007] [2022-11-18 20:52:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323268007] [2022-11-18 20:52:32,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323268007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:32,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240828258] [2022-11-18 20:52:32,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:32,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 242 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:32,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:32,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:36,684 INFO L130 PetriNetUnfolder]: 12680/23833 cut-off events. [2022-11-18 20:52:36,684 INFO L131 PetriNetUnfolder]: For 5415/5507 co-relation queries the response was YES. [2022-11-18 20:52:36,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50964 conditions, 23833 events. 12680/23833 cut-off events. For 5415/5507 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 199382 event pairs, 4083 based on Foata normal form. 0/23445 useless extension candidates. Maximal degree in co-relation 41413. Up to 10068 conditions per place. [2022-11-18 20:52:36,865 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 101 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2022-11-18 20:52:36,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 292 transitions, 908 flow [2022-11-18 20:52:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-18 20:52:36,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857923497267759 [2022-11-18 20:52:36,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-18 20:52:36,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-18 20:52:36,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:36,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-18 20:52:36,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,875 INFO L175 Difference]: Start difference. First operand has 236 places, 242 transitions, 543 flow. Second operand 3 states and 753 transitions. [2022-11-18 20:52:36,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 292 transitions, 908 flow [2022-11-18 20:52:36,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 292 transitions, 890 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:36,889 INFO L231 Difference]: Finished difference. Result has 237 places, 245 transitions, 567 flow [2022-11-18 20:52:36,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=237, PETRI_TRANSITIONS=245} [2022-11-18 20:52:36,890 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -109 predicate places. [2022-11-18 20:52:36,891 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 245 transitions, 567 flow [2022-11-18 20:52:36,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,891 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:36,892 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:36,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:52:36,892 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:36,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:36,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1126141040, now seen corresponding path program 1 times [2022-11-18 20:52:36,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:36,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924933913] [2022-11-18 20:52:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:36,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:36,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:36,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924933913] [2022-11-18 20:52:36,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924933913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:36,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:36,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:36,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120750311] [2022-11-18 20:52:36,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:36,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:36,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:36,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:36,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:36,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 245 transitions, 567 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:36,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:36,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:42,721 INFO L130 PetriNetUnfolder]: 18404/35373 cut-off events. [2022-11-18 20:52:42,722 INFO L131 PetriNetUnfolder]: For 9719/9829 co-relation queries the response was YES. [2022-11-18 20:52:42,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77528 conditions, 35373 events. 18404/35373 cut-off events. For 9719/9829 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 323581 event pairs, 5924 based on Foata normal form. 0/34748 useless extension candidates. Maximal degree in co-relation 62175. Up to 14667 conditions per place. [2022-11-18 20:52:42,960 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 109 selfloop transitions, 5 changer transitions 0/299 dead transitions. [2022-11-18 20:52:42,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 299 transitions, 972 flow [2022-11-18 20:52:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:52:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-18 20:52:42,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857923497267759 [2022-11-18 20:52:42,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-18 20:52:42,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-18 20:52:42,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:42,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-18 20:52:42,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:42,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:42,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:42,972 INFO L175 Difference]: Start difference. First operand has 237 places, 245 transitions, 567 flow. Second operand 3 states and 753 transitions. [2022-11-18 20:52:42,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 299 transitions, 972 flow [2022-11-18 20:52:42,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 299 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:52:42,999 INFO L231 Difference]: Finished difference. Result has 238 places, 248 transitions, 591 flow [2022-11-18 20:52:43,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=238, PETRI_TRANSITIONS=248} [2022-11-18 20:52:43,001 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -108 predicate places. [2022-11-18 20:52:43,001 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 248 transitions, 591 flow [2022-11-18 20:52:43,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:43,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:43,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:43,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:52:43,003 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-18 20:52:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:43,003 INFO L85 PathProgramCache]: Analyzing trace with hash -114434000, now seen corresponding path program 1 times [2022-11-18 20:52:43,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:43,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16739814] [2022-11-18 20:52:43,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:43,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:43,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:43,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16739814] [2022-11-18 20:52:43,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16739814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:43,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:43,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:43,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000338588] [2022-11-18 20:52:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:43,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:43,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:43,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:43,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:43,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-18 20:52:43,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 248 transitions, 591 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:43,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:43,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-18 20:52:43,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand