./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8 --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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-2329fc7 [2022-12-13 21:43:27,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:43:27,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:43:27,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:43:27,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:43:27,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:43:27,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:43:27,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:43:27,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:43:27,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:43:27,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:43:27,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:43:27,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:43:27,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:43:27,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:43:27,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:43:27,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:43:27,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:43:27,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:43:27,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:43:27,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:43:27,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:43:27,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:43:27,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:43:27,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:43:27,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:43:27,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:43:27,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:43:27,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:43:27,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:43:27,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:43:27,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:43:27,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:43:27,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:43:27,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:43:27,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:43:27,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:43:27,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:43:27,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:43:27,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:43:27,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:43:27,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 21:43:27,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:43:27,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:43:27,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:43:27,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:43:27,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:43:27,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:43:27,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:43:27,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:43:27,582 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:43:27,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:43:27,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:43:27,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:43:27,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:43:27,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:43:27,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:43:27,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:43:27,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:43:27,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:43:27,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:43:27,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:43:27,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:43:27,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:43:27,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:43:27,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:43:27,586 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:43:27,587 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-12-13 21:43:27,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:43:27,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:43:27,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:43:27,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:43:27,780 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:43:27,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-12-13 21:43:30,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:43:30,635 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:43:30,636 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-12-13 21:43:30,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/data/3f40acf5f/ca889d9bebd2467381db0c6931274c6b/FLAG734857ad6 [2022-12-13 21:43:30,667 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/data/3f40acf5f/ca889d9bebd2467381db0c6931274c6b [2022-12-13 21:43:30,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:43:30,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:43:30,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:43:30,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:43:30,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:43:30,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:43:30" (1/1) ... [2022-12-13 21:43:30,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc5ff73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:30, skipping insertion in model container [2022-12-13 21:43:30,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:43:30" (1/1) ... [2022-12-13 21:43:30,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:43:30,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:43:30,843 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:43:31,185 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-12-13 21:43:31,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:43:31,229 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:43:31,237 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:43:31,259 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-12-13 21:43:31,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:43:31,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:43:31,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:43:31,346 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:43:31,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31 WrapperNode [2022-12-13 21:43:31,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:43:31,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:43:31,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:43:31,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:43:31,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,403 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-12-13 21:43:31,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:43:31,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:43:31,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:43:31,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:43:31,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:43:31,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:43:31,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:43:31,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:43:31,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (1/1) ... [2022-12-13 21:43:31,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:43:31,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:43:31,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:43:31,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:43:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:43:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 21:43:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:43:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:43:31,492 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:43:31,686 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:43:31,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:43:32,023 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:43:32,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:43:32,089 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:43:32,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:43:32 BoogieIcfgContainer [2022-12-13 21:43:32,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:43:32,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:43:32,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:43:32,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:43:32,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:43:30" (1/3) ... [2022-12-13 21:43:32,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae73109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:43:32, skipping insertion in model container [2022-12-13 21:43:32,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:31" (2/3) ... [2022-12-13 21:43:32,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae73109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:43:32, skipping insertion in model container [2022-12-13 21:43:32,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:43:32" (3/3) ... [2022-12-13 21:43:32,097 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-12-13 21:43:32,103 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:43:32,110 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:43:32,110 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-12-13 21:43:32,110 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:43:32,172 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 21:43:32,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-12-13 21:43:32,268 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-12-13 21:43:32,268 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 21:43:32,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 626 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-12-13 21:43:32,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-12-13 21:43:32,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-12-13 21:43:32,279 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:43:32,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 244 transitions, 500 flow [2022-12-13 21:43:32,289 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 244 transitions, 500 flow [2022-12-13 21:43:32,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 244 transitions, 500 flow [2022-12-13 21:43:32,331 INFO L130 PetriNetUnfolder]: 7/323 cut-off events. [2022-12-13 21:43:32,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 21:43:32,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 323 events. 7/323 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 639 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 166. Up to 4 conditions per place. [2022-12-13 21:43:32,335 INFO L119 LiptonReduction]: Number of co-enabled transitions 6560 [2022-12-13 21:44:11,390 INFO L134 LiptonReduction]: Checked pairs total: 34126 [2022-12-13 21:44:11,391 INFO L136 LiptonReduction]: Total number of compositions: 209 [2022-12-13 21:44:11,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:44:11,411 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;@7d0e3711, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:44:11,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-13 21:44:11,413 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 21:44:11,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:44:11,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:11,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:44:11,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:11,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:11,419 INFO L85 PathProgramCache]: Analyzing trace with hash 917, now seen corresponding path program 1 times [2022-12-13 21:44:11,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:11,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076252570] [2022-12-13 21:44:11,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:11,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:11,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:11,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076252570] [2022-12-13 21:44:11,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076252570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:11,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:11,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:44:11,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529104787] [2022-12-13 21:44:11,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:11,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:44:11,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:11,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:44:11,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:44:11,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 456 [2022-12-13 21:44:11,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 178 flow. Second operand has 2 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:11,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:11,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 456 [2022-12-13 21:44:11,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:11,966 INFO L130 PetriNetUnfolder]: 606/1706 cut-off events. [2022-12-13 21:44:11,966 INFO L131 PetriNetUnfolder]: For 39/68 co-relation queries the response was YES. [2022-12-13 21:44:11,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2756 conditions, 1706 events. 606/1706 cut-off events. For 39/68 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11297 event pairs, 605 based on Foata normal form. 74/1660 useless extension candidates. Maximal degree in co-relation 2516. Up to 1026 conditions per place. [2022-12-13 21:44:11,976 INFO L137 encePairwiseOnDemand]: 440/456 looper letters, 31 selfloop transitions, 0 changer transitions 1/66 dead transitions. [2022-12-13 21:44:11,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 66 transitions, 208 flow [2022-12-13 21:44:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:44:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:44:11,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 478 transitions. [2022-12-13 21:44:11,989 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5241228070175439 [2022-12-13 21:44:11,990 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 478 transitions. [2022-12-13 21:44:11,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 478 transitions. [2022-12-13 21:44:11,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:11,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 478 transitions. [2022-12-13 21:44:11,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 239.0) internal successors, (478), 2 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,003 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,005 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 178 flow. Second operand 2 states and 478 transitions. [2022-12-13 21:44:12,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 66 transitions, 208 flow [2022-12-13 21:44:12,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 21:44:12,009 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 134 flow [2022-12-13 21:44:12,011 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2022-12-13 21:44:12,014 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -18 predicate places. [2022-12-13 21:44:12,014 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 134 flow [2022-12-13 21:44:12,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:12,015 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:12,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:44:12,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash -218024332, now seen corresponding path program 1 times [2022-12-13 21:44:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:12,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007037967] [2022-12-13 21:44:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:12,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:12,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:12,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007037967] [2022-12-13 21:44:12,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007037967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:12,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:12,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:44:12,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675512032] [2022-12-13 21:44:12,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:12,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:44:12,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:12,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:44:12,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:44:12,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 456 [2022-12-13 21:44:12,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:12,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 456 [2022-12-13 21:44:12,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:12,609 INFO L130 PetriNetUnfolder]: 546/1674 cut-off events. [2022-12-13 21:44:12,609 INFO L131 PetriNetUnfolder]: For 7/31 co-relation queries the response was YES. [2022-12-13 21:44:12,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1674 events. 546/1674 cut-off events. For 7/31 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11547 event pairs, 545 based on Foata normal form. 0/1543 useless extension candidates. Maximal degree in co-relation 2608. Up to 927 conditions per place. [2022-12-13 21:44:12,615 INFO L137 encePairwiseOnDemand]: 453/456 looper letters, 30 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2022-12-13 21:44:12,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 66 transitions, 200 flow [2022-12-13 21:44:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:44:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:44:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2022-12-13 21:44:12,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48903508771929827 [2022-12-13 21:44:12,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 669 transitions. [2022-12-13 21:44:12,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 669 transitions. [2022-12-13 21:44:12,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:12,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 669 transitions. [2022-12-13 21:44:12,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,626 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 134 flow. Second operand 3 states and 669 transitions. [2022-12-13 21:44:12,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 66 transitions, 200 flow [2022-12-13 21:44:12,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:44:12,628 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 146 flow [2022-12-13 21:44:12,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2022-12-13 21:44:12,628 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -16 predicate places. [2022-12-13 21:44:12,629 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 146 flow [2022-12-13 21:44:12,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:12,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:12,629 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:12,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:44:12,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:12,630 INFO L85 PathProgramCache]: Analyzing trace with hash 39157852, now seen corresponding path program 1 times [2022-12-13 21:44:12,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:12,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325696427] [2022-12-13 21:44:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:12,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:12,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:12,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325696427] [2022-12-13 21:44:12,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325696427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:12,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:12,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:44:12,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001455667] [2022-12-13 21:44:12,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:12,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:44:12,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:12,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:44:12,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:44:13,263 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 456 [2022-12-13 21:44:13,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:13,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:13,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 456 [2022-12-13 21:44:13,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:13,903 INFO L130 PetriNetUnfolder]: 1658/3199 cut-off events. [2022-12-13 21:44:13,903 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-13 21:44:13,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6018 conditions, 3199 events. 1658/3199 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 18370 event pairs, 1198 based on Foata normal form. 0/3052 useless extension candidates. Maximal degree in co-relation 6013. Up to 2395 conditions per place. [2022-12-13 21:44:13,914 INFO L137 encePairwiseOnDemand]: 442/456 looper letters, 64 selfloop transitions, 31 changer transitions 0/111 dead transitions. [2022-12-13 21:44:13,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 111 transitions, 426 flow [2022-12-13 21:44:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:44:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:44:13,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1163 transitions. [2022-12-13 21:44:13,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42507309941520466 [2022-12-13 21:44:13,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1163 transitions. [2022-12-13 21:44:13,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1163 transitions. [2022-12-13 21:44:13,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:13,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1163 transitions. [2022-12-13 21:44:13,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:13,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:13,922 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:13,923 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 146 flow. Second operand 6 states and 1163 transitions. [2022-12-13 21:44:13,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 111 transitions, 426 flow [2022-12-13 21:44:13,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 111 transitions, 424 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:44:13,924 INFO L231 Difference]: Finished difference. Result has 79 places, 95 transitions, 350 flow [2022-12-13 21:44:13,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=79, PETRI_TRANSITIONS=95} [2022-12-13 21:44:13,925 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -7 predicate places. [2022-12-13 21:44:13,925 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 95 transitions, 350 flow [2022-12-13 21:44:13,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:13,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:13,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:13,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:44:13,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:13,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:13,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1793306585, now seen corresponding path program 1 times [2022-12-13 21:44:13,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:13,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382942375] [2022-12-13 21:44:13,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:13,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:14,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:14,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382942375] [2022-12-13 21:44:14,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382942375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:14,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:14,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:44:14,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176370701] [2022-12-13 21:44:14,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:14,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:44:14,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:14,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:44:14,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:44:14,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 456 [2022-12-13 21:44:14,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 95 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:14,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:14,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 456 [2022-12-13 21:44:14,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:15,306 INFO L130 PetriNetUnfolder]: 1848/3566 cut-off events. [2022-12-13 21:44:15,306 INFO L131 PetriNetUnfolder]: For 1185/1195 co-relation queries the response was YES. [2022-12-13 21:44:15,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8612 conditions, 3566 events. 1848/3566 cut-off events. For 1185/1195 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 21142 event pairs, 1097 based on Foata normal form. 0/3449 useless extension candidates. Maximal degree in co-relation 8603. Up to 2601 conditions per place. [2022-12-13 21:44:15,319 INFO L137 encePairwiseOnDemand]: 445/456 looper letters, 98 selfloop transitions, 22 changer transitions 0/142 dead transitions. [2022-12-13 21:44:15,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 142 transitions, 733 flow [2022-12-13 21:44:15,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:44:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:44:15,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1244 transitions. [2022-12-13 21:44:15,322 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4546783625730994 [2022-12-13 21:44:15,322 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1244 transitions. [2022-12-13 21:44:15,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1244 transitions. [2022-12-13 21:44:15,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:15,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1244 transitions. [2022-12-13 21:44:15,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.33333333333334) internal successors, (1244), 6 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:15,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:15,328 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:15,328 INFO L175 Difference]: Start difference. First operand has 79 places, 95 transitions, 350 flow. Second operand 6 states and 1244 transitions. [2022-12-13 21:44:15,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 142 transitions, 733 flow [2022-12-13 21:44:15,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 142 transitions, 733 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:44:15,332 INFO L231 Difference]: Finished difference. Result has 89 places, 116 transitions, 532 flow [2022-12-13 21:44:15,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=89, PETRI_TRANSITIONS=116} [2022-12-13 21:44:15,333 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 3 predicate places. [2022-12-13 21:44:15,333 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 116 transitions, 532 flow [2022-12-13 21:44:15,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:15,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:15,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:15,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:44:15,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:15,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:15,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1277054844, now seen corresponding path program 1 times [2022-12-13 21:44:15,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:15,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329931998] [2022-12-13 21:44:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:15,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:15,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:15,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329931998] [2022-12-13 21:44:15,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329931998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:15,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:15,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:44:15,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087885742] [2022-12-13 21:44:15,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:15,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:44:15,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:15,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:44:15,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:44:15,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 456 [2022-12-13 21:44:15,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 116 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:15,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:15,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 456 [2022-12-13 21:44:15,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:16,662 INFO L130 PetriNetUnfolder]: 2243/4029 cut-off events. [2022-12-13 21:44:16,662 INFO L131 PetriNetUnfolder]: For 2860/2860 co-relation queries the response was YES. [2022-12-13 21:44:16,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11292 conditions, 4029 events. 2243/4029 cut-off events. For 2860/2860 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22613 event pairs, 1288 based on Foata normal form. 0/3915 useless extension candidates. Maximal degree in co-relation 11278. Up to 3179 conditions per place. [2022-12-13 21:44:16,678 INFO L137 encePairwiseOnDemand]: 443/456 looper letters, 109 selfloop transitions, 30 changer transitions 0/161 dead transitions. [2022-12-13 21:44:16,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 161 transitions, 980 flow [2022-12-13 21:44:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:44:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:44:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2022-12-13 21:44:16,681 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4247076023391813 [2022-12-13 21:44:16,681 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1162 transitions. [2022-12-13 21:44:16,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1162 transitions. [2022-12-13 21:44:16,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:16,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1162 transitions. [2022-12-13 21:44:16,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.66666666666666) internal successors, (1162), 6 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:16,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:16,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:16,686 INFO L175 Difference]: Start difference. First operand has 89 places, 116 transitions, 532 flow. Second operand 6 states and 1162 transitions. [2022-12-13 21:44:16,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 161 transitions, 980 flow [2022-12-13 21:44:16,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 161 transitions, 980 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:44:16,692 INFO L231 Difference]: Finished difference. Result has 99 places, 145 transitions, 814 flow [2022-12-13 21:44:16,693 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=814, PETRI_PLACES=99, PETRI_TRANSITIONS=145} [2022-12-13 21:44:16,693 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 13 predicate places. [2022-12-13 21:44:16,693 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 145 transitions, 814 flow [2022-12-13 21:44:16,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:16,694 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:16,694 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:16,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:44:16,694 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:16,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -350415051, now seen corresponding path program 1 times [2022-12-13 21:44:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:16,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595994394] [2022-12-13 21:44:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:16,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:16,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595994394] [2022-12-13 21:44:16,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595994394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:16,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:16,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:44:16,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704201845] [2022-12-13 21:44:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:16,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:44:16,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:16,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:44:16,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:44:16,761 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 456 [2022-12-13 21:44:16,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 145 transitions, 814 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:16,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:16,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 456 [2022-12-13 21:44:16,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:17,139 INFO L130 PetriNetUnfolder]: 475/981 cut-off events. [2022-12-13 21:44:17,139 INFO L131 PetriNetUnfolder]: For 1396/1551 co-relation queries the response was YES. [2022-12-13 21:44:17,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3244 conditions, 981 events. 475/981 cut-off events. For 1396/1551 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4954 event pairs, 251 based on Foata normal form. 0/942 useless extension candidates. Maximal degree in co-relation 3225. Up to 664 conditions per place. [2022-12-13 21:44:17,144 INFO L137 encePairwiseOnDemand]: 453/456 looper letters, 56 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2022-12-13 21:44:17,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 558 flow [2022-12-13 21:44:17,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:44:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:44:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-12-13 21:44:17,146 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4956140350877193 [2022-12-13 21:44:17,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-12-13 21:44:17,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-12-13 21:44:17,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:17,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-12-13 21:44:17,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:17,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:17,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:17,149 INFO L175 Difference]: Start difference. First operand has 99 places, 145 transitions, 814 flow. Second operand 3 states and 678 transitions. [2022-12-13 21:44:17,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 558 flow [2022-12-13 21:44:17,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 94 transitions, 515 flow, removed 2 selfloop flow, removed 18 redundant places. [2022-12-13 21:44:17,153 INFO L231 Difference]: Finished difference. Result has 81 places, 84 transitions, 351 flow [2022-12-13 21:44:17,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=81, PETRI_TRANSITIONS=84} [2022-12-13 21:44:17,153 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -5 predicate places. [2022-12-13 21:44:17,153 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 84 transitions, 351 flow [2022-12-13 21:44:17,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:17,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:17,154 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:17,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:44:17,154 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:17,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash 266875077, now seen corresponding path program 1 times [2022-12-13 21:44:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:17,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076226712] [2022-12-13 21:44:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:17,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:17,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076226712] [2022-12-13 21:44:17,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076226712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:17,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:17,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628508209] [2022-12-13 21:44:17,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:17,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:17,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:17,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:17,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:18,372 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 456 [2022-12-13 21:44:18,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 84 transitions, 351 flow. Second operand has 10 states, 10 states have (on average 186.3) internal successors, (1863), 10 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:18,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:18,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 456 [2022-12-13 21:44:18,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:19,311 INFO L130 PetriNetUnfolder]: 995/1770 cut-off events. [2022-12-13 21:44:19,312 INFO L131 PetriNetUnfolder]: For 2000/2000 co-relation queries the response was YES. [2022-12-13 21:44:19,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6061 conditions, 1770 events. 995/1770 cut-off events. For 2000/2000 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8780 event pairs, 46 based on Foata normal form. 24/1788 useless extension candidates. Maximal degree in co-relation 6049. Up to 899 conditions per place. [2022-12-13 21:44:19,319 INFO L137 encePairwiseOnDemand]: 443/456 looper letters, 125 selfloop transitions, 36 changer transitions 0/180 dead transitions. [2022-12-13 21:44:19,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 180 transitions, 1188 flow [2022-12-13 21:44:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:19,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1967 transitions. [2022-12-13 21:44:19,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.431359649122807 [2022-12-13 21:44:19,326 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1967 transitions. [2022-12-13 21:44:19,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1967 transitions. [2022-12-13 21:44:19,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:19,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1967 transitions. [2022-12-13 21:44:19,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 196.7) internal successors, (1967), 10 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:19,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:19,333 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:19,333 INFO L175 Difference]: Start difference. First operand has 81 places, 84 transitions, 351 flow. Second operand 10 states and 1967 transitions. [2022-12-13 21:44:19,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 180 transitions, 1188 flow [2022-12-13 21:44:19,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 180 transitions, 1172 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:19,338 INFO L231 Difference]: Finished difference. Result has 93 places, 117 transitions, 746 flow [2022-12-13 21:44:19,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=746, PETRI_PLACES=93, PETRI_TRANSITIONS=117} [2022-12-13 21:44:19,338 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 7 predicate places. [2022-12-13 21:44:19,338 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 117 transitions, 746 flow [2022-12-13 21:44:19,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 186.3) internal successors, (1863), 10 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:19,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:19,339 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:19,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:44:19,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1085403521, now seen corresponding path program 2 times [2022-12-13 21:44:19,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:19,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167625368] [2022-12-13 21:44:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:20,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:20,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167625368] [2022-12-13 21:44:20,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167625368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:20,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:20,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:20,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340871126] [2022-12-13 21:44:20,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:20,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:20,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:20,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:21,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:44:21,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 117 transitions, 746 flow. Second operand has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:21,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:21,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:44:21,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:22,462 INFO L130 PetriNetUnfolder]: 1053/1876 cut-off events. [2022-12-13 21:44:22,462 INFO L131 PetriNetUnfolder]: For 4333/4333 co-relation queries the response was YES. [2022-12-13 21:44:22,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7571 conditions, 1876 events. 1053/1876 cut-off events. For 4333/4333 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9373 event pairs, 339 based on Foata normal form. 12/1881 useless extension candidates. Maximal degree in co-relation 7554. Up to 1253 conditions per place. [2022-12-13 21:44:22,469 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 96 selfloop transitions, 53 changer transitions 0/168 dead transitions. [2022-12-13 21:44:22,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 168 transitions, 1310 flow [2022-12-13 21:44:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:44:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 21:44:22,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1801 transitions. [2022-12-13 21:44:22,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4388401559454191 [2022-12-13 21:44:22,472 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1801 transitions. [2022-12-13 21:44:22,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1801 transitions. [2022-12-13 21:44:22,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:22,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1801 transitions. [2022-12-13 21:44:22,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 200.11111111111111) internal successors, (1801), 9 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:22,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:22,477 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:22,477 INFO L175 Difference]: Start difference. First operand has 93 places, 117 transitions, 746 flow. Second operand 9 states and 1801 transitions. [2022-12-13 21:44:22,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 168 transitions, 1310 flow [2022-12-13 21:44:22,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 168 transitions, 1298 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:22,488 INFO L231 Difference]: Finished difference. Result has 101 places, 130 transitions, 1063 flow [2022-12-13 21:44:22,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1063, PETRI_PLACES=101, PETRI_TRANSITIONS=130} [2022-12-13 21:44:22,488 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 15 predicate places. [2022-12-13 21:44:22,489 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 130 transitions, 1063 flow [2022-12-13 21:44:22,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:22,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:22,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:22,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:44:22,489 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2112332371, now seen corresponding path program 1 times [2022-12-13 21:44:22,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:22,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429992444] [2022-12-13 21:44:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:22,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:23,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:23,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429992444] [2022-12-13 21:44:23,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429992444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:23,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:23,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:23,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375984150] [2022-12-13 21:44:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:23,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:23,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:23,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:23,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:24,346 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:44:24,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 130 transitions, 1063 flow. Second operand has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:24,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:24,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:44:24,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:25,611 INFO L130 PetriNetUnfolder]: 1207/2084 cut-off events. [2022-12-13 21:44:25,611 INFO L131 PetriNetUnfolder]: For 8080/8085 co-relation queries the response was YES. [2022-12-13 21:44:25,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9784 conditions, 2084 events. 1207/2084 cut-off events. For 8080/8085 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10697 event pairs, 93 based on Foata normal form. 13/2095 useless extension candidates. Maximal degree in co-relation 9764. Up to 1263 conditions per place. [2022-12-13 21:44:25,619 INFO L137 encePairwiseOnDemand]: 442/456 looper letters, 179 selfloop transitions, 73 changer transitions 0/271 dead transitions. [2022-12-13 21:44:25,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 271 transitions, 2711 flow [2022-12-13 21:44:25,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2009 transitions. [2022-12-13 21:44:25,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4405701754385965 [2022-12-13 21:44:25,622 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2009 transitions. [2022-12-13 21:44:25,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2009 transitions. [2022-12-13 21:44:25,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:25,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2009 transitions. [2022-12-13 21:44:25,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.9) internal successors, (2009), 10 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:25,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:25,629 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:25,629 INFO L175 Difference]: Start difference. First operand has 101 places, 130 transitions, 1063 flow. Second operand 10 states and 2009 transitions. [2022-12-13 21:44:25,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 271 transitions, 2711 flow [2022-12-13 21:44:25,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 271 transitions, 2630 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-13 21:44:25,645 INFO L231 Difference]: Finished difference. Result has 111 places, 188 transitions, 1937 flow [2022-12-13 21:44:25,645 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1937, PETRI_PLACES=111, PETRI_TRANSITIONS=188} [2022-12-13 21:44:25,645 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 25 predicate places. [2022-12-13 21:44:25,645 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 188 transitions, 1937 flow [2022-12-13 21:44:25,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:25,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:25,646 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:25,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 21:44:25,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1716960763, now seen corresponding path program 3 times [2022-12-13 21:44:25,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:25,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291407297] [2022-12-13 21:44:25,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:25,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:25,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291407297] [2022-12-13 21:44:25,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291407297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:25,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:25,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:44:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183681675] [2022-12-13 21:44:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:25,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 21:44:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:25,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 21:44:25,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:44:27,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 456 [2022-12-13 21:44:27,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 188 transitions, 1937 flow. Second operand has 11 states, 11 states have (on average 186.1818181818182) internal successors, (2048), 11 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:27,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:27,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 456 [2022-12-13 21:44:27,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:28,729 INFO L130 PetriNetUnfolder]: 1545/2708 cut-off events. [2022-12-13 21:44:28,729 INFO L131 PetriNetUnfolder]: For 15481/15481 co-relation queries the response was YES. [2022-12-13 21:44:28,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14304 conditions, 2708 events. 1545/2708 cut-off events. For 15481/15481 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 14710 event pairs, 349 based on Foata normal form. 24/2725 useless extension candidates. Maximal degree in co-relation 14278. Up to 1405 conditions per place. [2022-12-13 21:44:28,741 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 177 selfloop transitions, 117 changer transitions 0/313 dead transitions. [2022-12-13 21:44:28,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 313 transitions, 3794 flow [2022-12-13 21:44:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:28,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1977 transitions. [2022-12-13 21:44:28,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43355263157894736 [2022-12-13 21:44:28,744 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1977 transitions. [2022-12-13 21:44:28,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1977 transitions. [2022-12-13 21:44:28,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:28,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1977 transitions. [2022-12-13 21:44:28,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.7) internal successors, (1977), 10 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:28,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:28,750 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:28,750 INFO L175 Difference]: Start difference. First operand has 111 places, 188 transitions, 1937 flow. Second operand 10 states and 1977 transitions. [2022-12-13 21:44:28,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 313 transitions, 3794 flow [2022-12-13 21:44:28,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 313 transitions, 3765 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-13 21:44:28,788 INFO L231 Difference]: Finished difference. Result has 124 places, 248 transitions, 3186 flow [2022-12-13 21:44:28,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1914, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3186, PETRI_PLACES=124, PETRI_TRANSITIONS=248} [2022-12-13 21:44:28,789 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 38 predicate places. [2022-12-13 21:44:28,789 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 248 transitions, 3186 flow [2022-12-13 21:44:28,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 186.1818181818182) internal successors, (2048), 11 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:28,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:28,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:28,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 21:44:28,790 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:28,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1602443663, now seen corresponding path program 2 times [2022-12-13 21:44:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:28,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578156087] [2022-12-13 21:44:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:29,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:29,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578156087] [2022-12-13 21:44:29,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578156087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:29,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:29,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:29,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12193566] [2022-12-13 21:44:29,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:29,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:29,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:29,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:30,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:44:30,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 248 transitions, 3186 flow. Second operand has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:30,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:30,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:44:30,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:32,196 INFO L130 PetriNetUnfolder]: 1780/3096 cut-off events. [2022-12-13 21:44:32,196 INFO L131 PetriNetUnfolder]: For 24853/24853 co-relation queries the response was YES. [2022-12-13 21:44:32,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18564 conditions, 3096 events. 1780/3096 cut-off events. For 24853/24853 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 17308 event pairs, 405 based on Foata normal form. 12/3101 useless extension candidates. Maximal degree in co-relation 18532. Up to 1980 conditions per place. [2022-12-13 21:44:32,212 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 210 selfloop transitions, 184 changer transitions 0/413 dead transitions. [2022-12-13 21:44:32,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 413 transitions, 6047 flow [2022-12-13 21:44:32,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2008 transitions. [2022-12-13 21:44:32,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44035087719298244 [2022-12-13 21:44:32,215 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2008 transitions. [2022-12-13 21:44:32,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2008 transitions. [2022-12-13 21:44:32,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:32,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2008 transitions. [2022-12-13 21:44:32,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.8) internal successors, (2008), 10 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:32,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:32,221 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:32,221 INFO L175 Difference]: Start difference. First operand has 124 places, 248 transitions, 3186 flow. Second operand 10 states and 2008 transitions. [2022-12-13 21:44:32,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 413 transitions, 6047 flow [2022-12-13 21:44:32,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 413 transitions, 5910 flow, removed 59 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:32,287 INFO L231 Difference]: Finished difference. Result has 136 places, 346 transitions, 5249 flow [2022-12-13 21:44:32,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3099, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5249, PETRI_PLACES=136, PETRI_TRANSITIONS=346} [2022-12-13 21:44:32,287 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 50 predicate places. [2022-12-13 21:44:32,288 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 346 transitions, 5249 flow [2022-12-13 21:44:32,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:32,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:32,288 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:32,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 21:44:32,288 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:32,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash -746074421, now seen corresponding path program 4 times [2022-12-13 21:44:32,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:32,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133687241] [2022-12-13 21:44:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:32,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:32,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133687241] [2022-12-13 21:44:32,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133687241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:32,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:32,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:44:32,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53099171] [2022-12-13 21:44:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:32,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 21:44:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 21:44:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:44:33,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 456 [2022-12-13 21:44:33,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 346 transitions, 5249 flow. Second operand has 11 states, 11 states have (on average 186.1818181818182) internal successors, (2048), 11 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:33,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:33,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 456 [2022-12-13 21:44:33,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:35,214 INFO L130 PetriNetUnfolder]: 1958/3423 cut-off events. [2022-12-13 21:44:35,214 INFO L131 PetriNetUnfolder]: For 36610/36610 co-relation queries the response was YES. [2022-12-13 21:44:35,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22598 conditions, 3423 events. 1958/3423 cut-off events. For 36610/36610 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 19757 event pairs, 527 based on Foata normal form. 24/3440 useless extension candidates. Maximal degree in co-relation 22561. Up to 2052 conditions per place. [2022-12-13 21:44:35,239 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 235 selfloop transitions, 210 changer transitions 0/464 dead transitions. [2022-12-13 21:44:35,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 464 transitions, 7640 flow [2022-12-13 21:44:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:35,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1976 transitions. [2022-12-13 21:44:35,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2022-12-13 21:44:35,242 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1976 transitions. [2022-12-13 21:44:35,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1976 transitions. [2022-12-13 21:44:35,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:35,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1976 transitions. [2022-12-13 21:44:35,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.6) internal successors, (1976), 10 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:35,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:35,250 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:35,250 INFO L175 Difference]: Start difference. First operand has 136 places, 346 transitions, 5249 flow. Second operand 10 states and 1976 transitions. [2022-12-13 21:44:35,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 464 transitions, 7640 flow [2022-12-13 21:44:35,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 464 transitions, 7480 flow, removed 66 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:35,381 INFO L231 Difference]: Finished difference. Result has 147 places, 400 transitions, 6811 flow [2022-12-13 21:44:35,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=5129, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6811, PETRI_PLACES=147, PETRI_TRANSITIONS=400} [2022-12-13 21:44:35,382 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 61 predicate places. [2022-12-13 21:44:35,382 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 400 transitions, 6811 flow [2022-12-13 21:44:35,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 186.1818181818182) internal successors, (2048), 11 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:35,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:35,383 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:35,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 21:44:35,383 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:35,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1078541981, now seen corresponding path program 5 times [2022-12-13 21:44:35,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:35,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368921973] [2022-12-13 21:44:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:35,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:35,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368921973] [2022-12-13 21:44:35,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368921973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:35,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:35,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:44:35,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703617398] [2022-12-13 21:44:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:35,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 21:44:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:35,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 21:44:35,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:44:36,504 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 456 [2022-12-13 21:44:36,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 400 transitions, 6811 flow. Second operand has 11 states, 11 states have (on average 186.1818181818182) internal successors, (2048), 11 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:36,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:36,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 456 [2022-12-13 21:44:36,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:38,222 INFO L130 PetriNetUnfolder]: 1992/3518 cut-off events. [2022-12-13 21:44:38,222 INFO L131 PetriNetUnfolder]: For 45198/45198 co-relation queries the response was YES. [2022-12-13 21:44:38,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24767 conditions, 3518 events. 1992/3518 cut-off events. For 45198/45198 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 20765 event pairs, 545 based on Foata normal form. 24/3535 useless extension candidates. Maximal degree in co-relation 24726. Up to 2314 conditions per place. [2022-12-13 21:44:38,248 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 227 selfloop transitions, 234 changer transitions 0/480 dead transitions. [2022-12-13 21:44:38,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 480 transitions, 8629 flow [2022-12-13 21:44:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:38,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1973 transitions. [2022-12-13 21:44:38,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4326754385964912 [2022-12-13 21:44:38,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1973 transitions. [2022-12-13 21:44:38,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1973 transitions. [2022-12-13 21:44:38,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:38,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1973 transitions. [2022-12-13 21:44:38,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.3) internal successors, (1973), 10 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:38,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:38,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:38,260 INFO L175 Difference]: Start difference. First operand has 147 places, 400 transitions, 6811 flow. Second operand 10 states and 1973 transitions. [2022-12-13 21:44:38,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 480 transitions, 8629 flow [2022-12-13 21:44:38,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 480 transitions, 8501 flow, removed 46 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:38,423 INFO L231 Difference]: Finished difference. Result has 157 places, 432 transitions, 8045 flow [2022-12-13 21:44:38,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=6691, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8045, PETRI_PLACES=157, PETRI_TRANSITIONS=432} [2022-12-13 21:44:38,424 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 71 predicate places. [2022-12-13 21:44:38,424 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 432 transitions, 8045 flow [2022-12-13 21:44:38,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 186.1818181818182) internal successors, (2048), 11 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:38,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:38,425 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:38,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 21:44:38,425 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:38,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:38,425 INFO L85 PathProgramCache]: Analyzing trace with hash -742379841, now seen corresponding path program 3 times [2022-12-13 21:44:38,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:38,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41613674] [2022-12-13 21:44:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:39,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:39,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41613674] [2022-12-13 21:44:39,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41613674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:39,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:39,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:39,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597753550] [2022-12-13 21:44:39,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:39,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:39,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:39,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:39,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:40,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:44:40,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 432 transitions, 8045 flow. Second operand has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:40,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:40,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:44:40,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:41,988 INFO L130 PetriNetUnfolder]: 2118/3733 cut-off events. [2022-12-13 21:44:41,988 INFO L131 PetriNetUnfolder]: For 55877/55877 co-relation queries the response was YES. [2022-12-13 21:44:42,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28169 conditions, 3733 events. 2118/3733 cut-off events. For 55877/55877 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 22335 event pairs, 441 based on Foata normal form. 12/3738 useless extension candidates. Maximal degree in co-relation 28124. Up to 2457 conditions per place. [2022-12-13 21:44:42,017 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 263 selfloop transitions, 291 changer transitions 0/573 dead transitions. [2022-12-13 21:44:42,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 573 transitions, 11473 flow [2022-12-13 21:44:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:42,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2008 transitions. [2022-12-13 21:44:42,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44035087719298244 [2022-12-13 21:44:42,021 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2008 transitions. [2022-12-13 21:44:42,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2008 transitions. [2022-12-13 21:44:42,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:42,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2008 transitions. [2022-12-13 21:44:42,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.8) internal successors, (2008), 10 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:42,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:42,029 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:42,029 INFO L175 Difference]: Start difference. First operand has 157 places, 432 transitions, 8045 flow. Second operand 10 states and 2008 transitions. [2022-12-13 21:44:42,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 573 transitions, 11473 flow [2022-12-13 21:44:42,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 573 transitions, 11314 flow, removed 33 selfloop flow, removed 4 redundant places. [2022-12-13 21:44:42,236 INFO L231 Difference]: Finished difference. Result has 167 places, 510 transitions, 10533 flow [2022-12-13 21:44:42,237 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=7916, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10533, PETRI_PLACES=167, PETRI_TRANSITIONS=510} [2022-12-13 21:44:42,237 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 81 predicate places. [2022-12-13 21:44:42,237 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 510 transitions, 10533 flow [2022-12-13 21:44:42,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:42,238 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:42,238 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:42,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 21:44:42,238 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:42,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:42,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1085399181, now seen corresponding path program 4 times [2022-12-13 21:44:42,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:42,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260555333] [2022-12-13 21:44:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:42,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:42,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:42,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260555333] [2022-12-13 21:44:42,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260555333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:42,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:42,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:42,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781091503] [2022-12-13 21:44:42,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:42,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:42,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:42,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:42,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:43,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:44:43,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 510 transitions, 10533 flow. Second operand has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:43,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:43,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:44:43,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:45,246 INFO L130 PetriNetUnfolder]: 2205/3888 cut-off events. [2022-12-13 21:44:45,246 INFO L131 PetriNetUnfolder]: For 69183/69183 co-relation queries the response was YES. [2022-12-13 21:44:45,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31618 conditions, 3888 events. 2205/3888 cut-off events. For 69183/69183 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 23491 event pairs, 473 based on Foata normal form. 12/3893 useless extension candidates. Maximal degree in co-relation 31568. Up to 2707 conditions per place. [2022-12-13 21:44:45,273 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 247 selfloop transitions, 327 changer transitions 0/593 dead transitions. [2022-12-13 21:44:45,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 593 transitions, 13020 flow [2022-12-13 21:44:45,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:44:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 21:44:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1809 transitions. [2022-12-13 21:44:45,275 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2022-12-13 21:44:45,275 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1809 transitions. [2022-12-13 21:44:45,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1809 transitions. [2022-12-13 21:44:45,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:45,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1809 transitions. [2022-12-13 21:44:45,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 201.0) internal successors, (1809), 9 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:45,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:45,279 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:45,279 INFO L175 Difference]: Start difference. First operand has 167 places, 510 transitions, 10533 flow. Second operand 9 states and 1809 transitions. [2022-12-13 21:44:45,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 593 transitions, 13020 flow [2022-12-13 21:44:45,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 593 transitions, 12876 flow, removed 54 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:45,529 INFO L231 Difference]: Finished difference. Result has 175 places, 550 transitions, 12605 flow [2022-12-13 21:44:45,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=10401, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=287, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12605, PETRI_PLACES=175, PETRI_TRANSITIONS=550} [2022-12-13 21:44:45,530 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 89 predicate places. [2022-12-13 21:44:45,530 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 550 transitions, 12605 flow [2022-12-13 21:44:45,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:45,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:45,530 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:45,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 21:44:45,530 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:45,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:45,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1078422321, now seen corresponding path program 5 times [2022-12-13 21:44:45,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:45,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502860288] [2022-12-13 21:44:45,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:45,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:46,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:46,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502860288] [2022-12-13 21:44:46,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502860288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:46,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:46,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:44:46,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743103209] [2022-12-13 21:44:46,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:46,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:44:46,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:44:46,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:44:47,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:44:47,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 550 transitions, 12605 flow. Second operand has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:47,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:47,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:44:47,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:49,373 INFO L130 PetriNetUnfolder]: 2229/3946 cut-off events. [2022-12-13 21:44:49,373 INFO L131 PetriNetUnfolder]: For 84760/84760 co-relation queries the response was YES. [2022-12-13 21:44:49,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34006 conditions, 3946 events. 2229/3946 cut-off events. For 84760/84760 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 24103 event pairs, 454 based on Foata normal form. 12/3951 useless extension candidates. Maximal degree in co-relation 33953. Up to 2656 conditions per place. [2022-12-13 21:44:49,400 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 265 selfloop transitions, 355 changer transitions 0/639 dead transitions. [2022-12-13 21:44:49,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 639 transitions, 15308 flow [2022-12-13 21:44:49,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:44:49,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:44:49,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2006 transitions. [2022-12-13 21:44:49,403 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43991228070175437 [2022-12-13 21:44:49,403 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2006 transitions. [2022-12-13 21:44:49,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2006 transitions. [2022-12-13 21:44:49,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:49,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2006 transitions. [2022-12-13 21:44:49,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.6) internal successors, (2006), 10 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:49,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:49,407 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:49,407 INFO L175 Difference]: Start difference. First operand has 175 places, 550 transitions, 12605 flow. Second operand 10 states and 2006 transitions. [2022-12-13 21:44:49,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 639 transitions, 15308 flow [2022-12-13 21:44:49,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 639 transitions, 15076 flow, removed 24 selfloop flow, removed 5 redundant places. [2022-12-13 21:44:49,709 INFO L231 Difference]: Finished difference. Result has 183 places, 597 transitions, 14713 flow [2022-12-13 21:44:49,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=12383, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=312, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14713, PETRI_PLACES=183, PETRI_TRANSITIONS=597} [2022-12-13 21:44:49,709 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 97 predicate places. [2022-12-13 21:44:49,710 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 597 transitions, 14713 flow [2022-12-13 21:44:49,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.3) internal successors, (1893), 10 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:49,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:49,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:49,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 21:44:49,710 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:49,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1457772829, now seen corresponding path program 1 times [2022-12-13 21:44:49,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:49,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384311636] [2022-12-13 21:44:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:49,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:50,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:50,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384311636] [2022-12-13 21:44:50,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384311636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:50,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:50,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:44:50,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419044364] [2022-12-13 21:44:50,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:50,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:44:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:50,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:44:50,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:44:51,081 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:44:51,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 597 transitions, 14713 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:51,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:51,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:44:51,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:44:54,229 INFO L130 PetriNetUnfolder]: 3601/6394 cut-off events. [2022-12-13 21:44:54,229 INFO L131 PetriNetUnfolder]: For 148711/148711 co-relation queries the response was YES. [2022-12-13 21:44:54,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56478 conditions, 6394 events. 3601/6394 cut-off events. For 148711/148711 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 42865 event pairs, 510 based on Foata normal form. 18/6399 useless extension candidates. Maximal degree in co-relation 56421. Up to 3038 conditions per place. [2022-12-13 21:44:54,281 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 710 selfloop transitions, 205 changer transitions 0/934 dead transitions. [2022-12-13 21:44:54,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 934 transitions, 22858 flow [2022-12-13 21:44:54,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:44:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:44:54,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2787 transitions. [2022-12-13 21:44:54,284 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43656015037593987 [2022-12-13 21:44:54,284 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2787 transitions. [2022-12-13 21:44:54,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2787 transitions. [2022-12-13 21:44:54,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:44:54,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2787 transitions. [2022-12-13 21:44:54,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.07142857142858) internal successors, (2787), 14 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:54,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:54,289 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:54,290 INFO L175 Difference]: Start difference. First operand has 183 places, 597 transitions, 14713 flow. Second operand 14 states and 2787 transitions. [2022-12-13 21:44:54,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 934 transitions, 22858 flow [2022-12-13 21:44:55,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 934 transitions, 22697 flow, removed 55 selfloop flow, removed 3 redundant places. [2022-12-13 21:44:55,052 INFO L231 Difference]: Finished difference. Result has 202 places, 687 transitions, 17883 flow [2022-12-13 21:44:55,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=14605, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17883, PETRI_PLACES=202, PETRI_TRANSITIONS=687} [2022-12-13 21:44:55,053 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 116 predicate places. [2022-12-13 21:44:55,053 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 687 transitions, 17883 flow [2022-12-13 21:44:55,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:55,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:44:55,054 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:55,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 21:44:55,054 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:44:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1567783509, now seen corresponding path program 2 times [2022-12-13 21:44:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:55,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964263114] [2022-12-13 21:44:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:56,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:56,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964263114] [2022-12-13 21:44:56,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964263114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:56,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:56,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:44:56,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292350611] [2022-12-13 21:44:56,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:56,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:44:56,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:56,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:44:56,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:44:57,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:44:57,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 687 transitions, 17883 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:44:57,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:44:57,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:44:57,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:45:01,211 INFO L130 PetriNetUnfolder]: 3807/6723 cut-off events. [2022-12-13 21:45:01,211 INFO L131 PetriNetUnfolder]: For 190904/190914 co-relation queries the response was YES. [2022-12-13 21:45:01,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62634 conditions, 6723 events. 3807/6723 cut-off events. For 190904/190914 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 46009 event pairs, 527 based on Foata normal form. 34/6754 useless extension candidates. Maximal degree in co-relation 62568. Up to 3767 conditions per place. [2022-12-13 21:45:01,264 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 577 selfloop transitions, 224 changer transitions 0/820 dead transitions. [2022-12-13 21:45:01,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 820 transitions, 21446 flow [2022-12-13 21:45:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 21:45:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 21:45:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2559 transitions. [2022-12-13 21:45:01,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4316801619433198 [2022-12-13 21:45:01,267 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2559 transitions. [2022-12-13 21:45:01,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2559 transitions. [2022-12-13 21:45:01,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:45:01,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2559 transitions. [2022-12-13 21:45:01,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 196.84615384615384) internal successors, (2559), 13 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:01,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:01,272 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:01,272 INFO L175 Difference]: Start difference. First operand has 202 places, 687 transitions, 17883 flow. Second operand 13 states and 2559 transitions. [2022-12-13 21:45:01,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 820 transitions, 21446 flow [2022-12-13 21:45:02,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 820 transitions, 21349 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-12-13 21:45:02,486 INFO L231 Difference]: Finished difference. Result has 218 places, 727 transitions, 19546 flow [2022-12-13 21:45:02,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=17805, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19546, PETRI_PLACES=218, PETRI_TRANSITIONS=727} [2022-12-13 21:45:02,487 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 132 predicate places. [2022-12-13 21:45:02,487 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 727 transitions, 19546 flow [2022-12-13 21:45:02,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:02,488 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:45:02,488 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:02,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 21:45:02,488 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:45:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash 928343771, now seen corresponding path program 3 times [2022-12-13 21:45:02,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:02,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375991301] [2022-12-13 21:45:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:02,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:03,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:03,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:03,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375991301] [2022-12-13 21:45:03,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375991301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:03,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:03,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:45:03,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224650643] [2022-12-13 21:45:03,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:03,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:45:03,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:03,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:45:03,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:45:05,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:45:05,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 727 transitions, 19546 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:05,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:45:05,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:45:05,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:45:10,553 INFO L130 PetriNetUnfolder]: 4069/7205 cut-off events. [2022-12-13 21:45:10,554 INFO L131 PetriNetUnfolder]: For 234054/234054 co-relation queries the response was YES. [2022-12-13 21:45:10,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69825 conditions, 7205 events. 4069/7205 cut-off events. For 234054/234054 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 49774 event pairs, 597 based on Foata normal form. 4/7196 useless extension candidates. Maximal degree in co-relation 69751. Up to 3485 conditions per place. [2022-12-13 21:45:10,677 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 645 selfloop transitions, 389 changer transitions 0/1053 dead transitions. [2022-12-13 21:45:10,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1053 transitions, 27511 flow [2022-12-13 21:45:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:45:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 21:45:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2989 transitions. [2022-12-13 21:45:10,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43698830409356726 [2022-12-13 21:45:10,680 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2989 transitions. [2022-12-13 21:45:10,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2989 transitions. [2022-12-13 21:45:10,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:45:10,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2989 transitions. [2022-12-13 21:45:10,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 199.26666666666668) internal successors, (2989), 15 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:10,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 456.0) internal successors, (7296), 16 states have internal predecessors, (7296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:10,686 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 456.0) internal successors, (7296), 16 states have internal predecessors, (7296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:10,686 INFO L175 Difference]: Start difference. First operand has 218 places, 727 transitions, 19546 flow. Second operand 15 states and 2989 transitions. [2022-12-13 21:45:10,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 1053 transitions, 27511 flow [2022-12-13 21:45:12,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 1053 transitions, 27441 flow, removed 31 selfloop flow, removed 3 redundant places. [2022-12-13 21:45:12,120 INFO L231 Difference]: Finished difference. Result has 237 places, 879 transitions, 24835 flow [2022-12-13 21:45:12,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=19510, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=24835, PETRI_PLACES=237, PETRI_TRANSITIONS=879} [2022-12-13 21:45:12,121 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 151 predicate places. [2022-12-13 21:45:12,121 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 879 transitions, 24835 flow [2022-12-13 21:45:12,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:12,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:45:12,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:12,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 21:45:12,121 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:45:12,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1563932069, now seen corresponding path program 4 times [2022-12-13 21:45:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:12,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470954634] [2022-12-13 21:45:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:12,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:13,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:13,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470954634] [2022-12-13 21:45:13,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470954634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:13,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:13,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:45:13,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705023352] [2022-12-13 21:45:13,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:13,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:45:13,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:13,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:45:13,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:45:14,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:45:14,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 879 transitions, 24835 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:14,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:45:14,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:45:14,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:45:20,232 INFO L130 PetriNetUnfolder]: 4453/7739 cut-off events. [2022-12-13 21:45:20,233 INFO L131 PetriNetUnfolder]: For 294805/294815 co-relation queries the response was YES. [2022-12-13 21:45:20,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79268 conditions, 7739 events. 4453/7739 cut-off events. For 294805/294815 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 53719 event pairs, 491 based on Foata normal form. 6/7742 useless extension candidates. Maximal degree in co-relation 79186. Up to 4056 conditions per place. [2022-12-13 21:45:20,304 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 324 selfloop transitions, 722 changer transitions 0/1065 dead transitions. [2022-12-13 21:45:20,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 1065 transitions, 30047 flow [2022-12-13 21:45:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:45:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 21:45:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3534 transitions. [2022-12-13 21:45:20,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2022-12-13 21:45:20,308 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3534 transitions. [2022-12-13 21:45:20,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3534 transitions. [2022-12-13 21:45:20,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:45:20,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3534 transitions. [2022-12-13 21:45:20,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 196.33333333333334) internal successors, (3534), 18 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:20,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:20,315 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:20,315 INFO L175 Difference]: Start difference. First operand has 237 places, 879 transitions, 24835 flow. Second operand 18 states and 3534 transitions. [2022-12-13 21:45:20,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 1065 transitions, 30047 flow [2022-12-13 21:45:22,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 1065 transitions, 29830 flow, removed 71 selfloop flow, removed 4 redundant places. [2022-12-13 21:45:22,471 INFO L231 Difference]: Finished difference. Result has 257 places, 976 transitions, 29376 flow [2022-12-13 21:45:22,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=24634, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=879, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=29376, PETRI_PLACES=257, PETRI_TRANSITIONS=976} [2022-12-13 21:45:22,471 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 171 predicate places. [2022-12-13 21:45:22,472 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 976 transitions, 29376 flow [2022-12-13 21:45:22,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:22,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:45:22,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:22,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 21:45:22,472 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:45:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 68279949, now seen corresponding path program 5 times [2022-12-13 21:45:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:22,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114332883] [2022-12-13 21:45:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:22,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:23,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:23,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114332883] [2022-12-13 21:45:23,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114332883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:23,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:23,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:45:23,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421947178] [2022-12-13 21:45:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:23,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:45:23,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:23,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:45:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:45:24,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:45:24,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 976 transitions, 29376 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:24,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:45:24,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:45:24,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:45:30,560 INFO L130 PetriNetUnfolder]: 4625/8079 cut-off events. [2022-12-13 21:45:30,560 INFO L131 PetriNetUnfolder]: For 343918/343918 co-relation queries the response was YES. [2022-12-13 21:45:30,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87678 conditions, 8079 events. 4625/8079 cut-off events. For 343918/343918 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 56402 event pairs, 613 based on Foata normal form. 4/8070 useless extension candidates. Maximal degree in co-relation 87589. Up to 4047 conditions per place. [2022-12-13 21:45:30,647 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 723 selfloop transitions, 485 changer transitions 0/1227 dead transitions. [2022-12-13 21:45:30,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 1227 transitions, 35727 flow [2022-12-13 21:45:30,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 21:45:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 21:45:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3186 transitions. [2022-12-13 21:45:30,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43667763157894735 [2022-12-13 21:45:30,651 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3186 transitions. [2022-12-13 21:45:30,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3186 transitions. [2022-12-13 21:45:30,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:45:30,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3186 transitions. [2022-12-13 21:45:30,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 199.125) internal successors, (3186), 16 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:30,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:30,658 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:30,658 INFO L175 Difference]: Start difference. First operand has 257 places, 976 transitions, 29376 flow. Second operand 16 states and 3186 transitions. [2022-12-13 21:45:30,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 1227 transitions, 35727 flow [2022-12-13 21:45:33,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 1227 transitions, 35441 flow, removed 139 selfloop flow, removed 3 redundant places. [2022-12-13 21:45:33,146 INFO L231 Difference]: Finished difference. Result has 275 places, 1054 transitions, 32315 flow [2022-12-13 21:45:33,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=29122, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=976, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=32315, PETRI_PLACES=275, PETRI_TRANSITIONS=1054} [2022-12-13 21:45:33,147 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 189 predicate places. [2022-12-13 21:45:33,147 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 1054 transitions, 32315 flow [2022-12-13 21:45:33,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:33,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:45:33,147 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:33,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 21:45:33,147 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:45:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1901819669, now seen corresponding path program 6 times [2022-12-13 21:45:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:33,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076685841] [2022-12-13 21:45:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:33,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:33,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:33,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076685841] [2022-12-13 21:45:33,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076685841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:33,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:33,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:45:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104142971] [2022-12-13 21:45:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:33,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:45:33,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:45:33,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:45:35,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:45:35,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 1054 transitions, 32315 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:35,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:45:35,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:45:35,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:45:40,860 INFO L130 PetriNetUnfolder]: 4789/8265 cut-off events. [2022-12-13 21:45:40,860 INFO L131 PetriNetUnfolder]: For 386307/386317 co-relation queries the response was YES. [2022-12-13 21:45:40,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93798 conditions, 8265 events. 4789/8265 cut-off events. For 386307/386317 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 57601 event pairs, 481 based on Foata normal form. 6/8268 useless extension candidates. Maximal degree in co-relation 93703. Up to 4230 conditions per place. [2022-12-13 21:45:40,953 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 359 selfloop transitions, 841 changer transitions 0/1219 dead transitions. [2022-12-13 21:45:40,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1219 transitions, 37419 flow [2022-12-13 21:45:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 21:45:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 21:45:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3921 transitions. [2022-12-13 21:45:40,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299342105263158 [2022-12-13 21:45:40,957 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3921 transitions. [2022-12-13 21:45:40,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3921 transitions. [2022-12-13 21:45:40,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:45:40,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3921 transitions. [2022-12-13 21:45:40,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 196.05) internal successors, (3921), 20 states have internal predecessors, (3921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:40,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 456.0) internal successors, (9576), 21 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:40,966 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 456.0) internal successors, (9576), 21 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:40,966 INFO L175 Difference]: Start difference. First operand has 275 places, 1054 transitions, 32315 flow. Second operand 20 states and 3921 transitions. [2022-12-13 21:45:40,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1219 transitions, 37419 flow [2022-12-13 21:45:43,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 1219 transitions, 36997 flow, removed 42 selfloop flow, removed 6 redundant places. [2022-12-13 21:45:43,937 INFO L231 Difference]: Finished difference. Result has 294 places, 1124 transitions, 35878 flow [2022-12-13 21:45:43,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=31917, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=781, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=35878, PETRI_PLACES=294, PETRI_TRANSITIONS=1124} [2022-12-13 21:45:43,938 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 208 predicate places. [2022-12-13 21:45:43,938 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 1124 transitions, 35878 flow [2022-12-13 21:45:43,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:43,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:45:43,938 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:43,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 21:45:43,938 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:45:43,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash 632524951, now seen corresponding path program 7 times [2022-12-13 21:45:43,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:43,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822304183] [2022-12-13 21:45:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:43,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:45,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:45,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822304183] [2022-12-13 21:45:45,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822304183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:45,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:45,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:45:45,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692098481] [2022-12-13 21:45:45,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:45,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:45:45,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:45:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:45:46,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:45:46,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 1124 transitions, 35878 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:46,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:45:46,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:45:46,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:45:51,911 INFO L130 PetriNetUnfolder]: 4877/8436 cut-off events. [2022-12-13 21:45:51,911 INFO L131 PetriNetUnfolder]: For 424686/424691 co-relation queries the response was YES. [2022-12-13 21:45:51,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99098 conditions, 8436 events. 4877/8436 cut-off events. For 424686/424691 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 58898 event pairs, 621 based on Foata normal form. 5/8433 useless extension candidates. Maximal degree in co-relation 98997. Up to 4299 conditions per place. [2022-12-13 21:45:52,052 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 892 selfloop transitions, 443 changer transitions 0/1354 dead transitions. [2022-12-13 21:45:52,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 1354 transitions, 42085 flow [2022-12-13 21:45:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 21:45:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 21:45:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3175 transitions. [2022-12-13 21:45:52,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43516995614035087 [2022-12-13 21:45:52,055 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3175 transitions. [2022-12-13 21:45:52,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3175 transitions. [2022-12-13 21:45:52,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:45:52,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3175 transitions. [2022-12-13 21:45:52,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 198.4375) internal successors, (3175), 16 states have internal predecessors, (3175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:52,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:52,062 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:52,062 INFO L175 Difference]: Start difference. First operand has 294 places, 1124 transitions, 35878 flow. Second operand 16 states and 3175 transitions. [2022-12-13 21:45:52,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 1354 transitions, 42085 flow [2022-12-13 21:45:55,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 1354 transitions, 41816 flow, removed 123 selfloop flow, removed 4 redundant places. [2022-12-13 21:45:55,363 INFO L231 Difference]: Finished difference. Result has 313 places, 1202 transitions, 38888 flow [2022-12-13 21:45:55,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=35627, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=38888, PETRI_PLACES=313, PETRI_TRANSITIONS=1202} [2022-12-13 21:45:55,363 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 227 predicate places. [2022-12-13 21:45:55,363 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 1202 transitions, 38888 flow [2022-12-13 21:45:55,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:55,364 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:45:55,364 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:55,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 21:45:55,364 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:45:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1012262757, now seen corresponding path program 8 times [2022-12-13 21:45:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:55,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744645572] [2022-12-13 21:45:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:56,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:56,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744645572] [2022-12-13 21:45:56,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744645572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:56,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:56,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:45:56,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574201410] [2022-12-13 21:45:56,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:56,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:45:56,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:45:56,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:45:57,380 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:45:57,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 1202 transitions, 38888 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:45:57,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:45:57,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:45:57,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:46:03,868 INFO L130 PetriNetUnfolder]: 5127/8799 cut-off events. [2022-12-13 21:46:03,868 INFO L131 PetriNetUnfolder]: For 490434/490444 co-relation queries the response was YES. [2022-12-13 21:46:03,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107553 conditions, 8799 events. 5127/8799 cut-off events. For 490434/490444 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 61611 event pairs, 513 based on Foata normal form. 6/8802 useless extension candidates. Maximal degree in co-relation 107444. Up to 4577 conditions per place. [2022-12-13 21:46:03,972 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 443 selfloop transitions, 978 changer transitions 0/1440 dead transitions. [2022-12-13 21:46:03,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1440 transitions, 46573 flow [2022-12-13 21:46:03,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 21:46:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-13 21:46:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4307 transitions. [2022-12-13 21:46:03,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4293261562998405 [2022-12-13 21:46:03,976 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4307 transitions. [2022-12-13 21:46:03,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4307 transitions. [2022-12-13 21:46:03,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:46:03,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4307 transitions. [2022-12-13 21:46:03,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 195.77272727272728) internal successors, (4307), 22 states have internal predecessors, (4307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:03,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 456.0) internal successors, (10488), 23 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:03,985 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 456.0) internal successors, (10488), 23 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:03,985 INFO L175 Difference]: Start difference. First operand has 313 places, 1202 transitions, 38888 flow. Second operand 22 states and 4307 transitions. [2022-12-13 21:46:03,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1440 transitions, 46573 flow [2022-12-13 21:46:08,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 1440 transitions, 46123 flow, removed 80 selfloop flow, removed 5 redundant places. [2022-12-13 21:46:08,146 INFO L231 Difference]: Finished difference. Result has 337 places, 1334 transitions, 45283 flow [2022-12-13 21:46:08,147 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=38489, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=855, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=45283, PETRI_PLACES=337, PETRI_TRANSITIONS=1334} [2022-12-13 21:46:08,147 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 251 predicate places. [2022-12-13 21:46:08,147 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1334 transitions, 45283 flow [2022-12-13 21:46:08,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:08,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:46:08,148 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:46:08,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 21:46:08,148 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:46:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:46:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1147111335, now seen corresponding path program 9 times [2022-12-13 21:46:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:46:08,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392555450] [2022-12-13 21:46:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:46:08,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:46:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:46:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:46:09,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:46:09,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392555450] [2022-12-13 21:46:09,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392555450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:46:09,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:46:09,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:46:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386003042] [2022-12-13 21:46:09,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:46:09,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:46:09,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:46:09,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:46:09,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:46:10,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:46:10,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1334 transitions, 45283 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:10,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:46:10,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:46:10,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:46:17,482 INFO L130 PetriNetUnfolder]: 5207/8958 cut-off events. [2022-12-13 21:46:17,482 INFO L131 PetriNetUnfolder]: For 532133/532138 co-relation queries the response was YES. [2022-12-13 21:46:17,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114383 conditions, 8958 events. 5207/8958 cut-off events. For 532133/532138 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 62928 event pairs, 611 based on Foata normal form. 5/8955 useless extension candidates. Maximal degree in co-relation 114266. Up to 4661 conditions per place. [2022-12-13 21:46:17,591 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1014 selfloop transitions, 470 changer transitions 0/1503 dead transitions. [2022-12-13 21:46:17,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 1503 transitions, 50781 flow [2022-12-13 21:46:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:46:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:46:17,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2796 transitions. [2022-12-13 21:46:17,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43796992481203006 [2022-12-13 21:46:17,595 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2796 transitions. [2022-12-13 21:46:17,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2796 transitions. [2022-12-13 21:46:17,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:46:17,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2796 transitions. [2022-12-13 21:46:17,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.71428571428572) internal successors, (2796), 14 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:17,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:17,601 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:17,601 INFO L175 Difference]: Start difference. First operand has 337 places, 1334 transitions, 45283 flow. Second operand 14 states and 2796 transitions. [2022-12-13 21:46:17,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 1503 transitions, 50781 flow [2022-12-13 21:46:22,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1503 transitions, 50321 flow, removed 226 selfloop flow, removed 3 redundant places. [2022-12-13 21:46:22,665 INFO L231 Difference]: Finished difference. Result has 351 places, 1362 transitions, 46896 flow [2022-12-13 21:46:22,665 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=44833, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=444, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=878, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=46896, PETRI_PLACES=351, PETRI_TRANSITIONS=1362} [2022-12-13 21:46:22,666 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 265 predicate places. [2022-12-13 21:46:22,666 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 1362 transitions, 46896 flow [2022-12-13 21:46:22,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:22,666 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:46:22,666 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:46:22,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 21:46:22,666 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:46:22,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:46:22,667 INFO L85 PathProgramCache]: Analyzing trace with hash 134006447, now seen corresponding path program 10 times [2022-12-13 21:46:22,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:46:22,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698854146] [2022-12-13 21:46:22,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:46:22,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:46:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:46:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:46:24,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:46:24,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698854146] [2022-12-13 21:46:24,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698854146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:46:24,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:46:24,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:46:24,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244861078] [2022-12-13 21:46:24,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:46:24,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:46:24,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:46:24,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:46:24,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:46:26,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:46:26,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 1362 transitions, 46896 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:26,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:46:26,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:46:26,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:46:35,727 INFO L130 PetriNetUnfolder]: 6771/11569 cut-off events. [2022-12-13 21:46:35,727 INFO L131 PetriNetUnfolder]: For 727287/727297 co-relation queries the response was YES. [2022-12-13 21:46:35,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147628 conditions, 11569 events. 6771/11569 cut-off events. For 727287/727297 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 84147 event pairs, 647 based on Foata normal form. 10/11571 useless extension candidates. Maximal degree in co-relation 147507. Up to 6114 conditions per place. [2022-12-13 21:46:35,889 INFO L137 encePairwiseOnDemand]: 440/456 looper letters, 1099 selfloop transitions, 758 changer transitions 0/1876 dead transitions. [2022-12-13 21:46:35,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 1876 transitions, 64250 flow [2022-12-13 21:46:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 21:46:35,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 21:46:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3179 transitions. [2022-12-13 21:46:35,892 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43571820175438597 [2022-12-13 21:46:35,892 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3179 transitions. [2022-12-13 21:46:35,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3179 transitions. [2022-12-13 21:46:35,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:46:35,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3179 transitions. [2022-12-13 21:46:35,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 198.6875) internal successors, (3179), 16 states have internal predecessors, (3179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:35,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:35,898 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:35,898 INFO L175 Difference]: Start difference. First operand has 351 places, 1362 transitions, 46896 flow. Second operand 16 states and 3179 transitions. [2022-12-13 21:46:35,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 1876 transitions, 64250 flow [2022-12-13 21:46:43,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 1876 transitions, 63642 flow, removed 24 selfloop flow, removed 8 redundant places. [2022-12-13 21:46:43,584 INFO L231 Difference]: Finished difference. Result has 364 places, 1564 transitions, 56495 flow [2022-12-13 21:46:43,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=46385, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=569, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=744, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=56495, PETRI_PLACES=364, PETRI_TRANSITIONS=1564} [2022-12-13 21:46:43,585 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 278 predicate places. [2022-12-13 21:46:43,585 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 1564 transitions, 56495 flow [2022-12-13 21:46:43,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:43,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:46:43,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:46:43,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 21:46:43,585 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:46:43,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:46:43,586 INFO L85 PathProgramCache]: Analyzing trace with hash 176767797, now seen corresponding path program 11 times [2022-12-13 21:46:43,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:46:43,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103413104] [2022-12-13 21:46:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:46:43,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:46:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:46:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:46:43,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:46:43,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103413104] [2022-12-13 21:46:43,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103413104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:46:43,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:46:43,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:46:43,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224335383] [2022-12-13 21:46:43,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:46:43,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:46:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:46:43,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:46:43,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:46:44,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:46:44,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1564 transitions, 56495 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:44,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:46:44,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:46:44,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:46:53,391 INFO L130 PetriNetUnfolder]: 6831/11712 cut-off events. [2022-12-13 21:46:53,391 INFO L131 PetriNetUnfolder]: For 812049/812054 co-relation queries the response was YES. [2022-12-13 21:46:53,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153819 conditions, 11712 events. 6831/11712 cut-off events. For 812049/812054 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 85218 event pairs, 1123 based on Foata normal form. 21/11720 useless extension candidates. Maximal degree in co-relation 153692. Up to 6138 conditions per place. [2022-12-13 21:46:53,588 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 1340 selfloop transitions, 370 changer transitions 0/1729 dead transitions. [2022-12-13 21:46:53,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1729 transitions, 62393 flow [2022-12-13 21:46:53,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:46:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:46:53,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2781 transitions. [2022-12-13 21:46:53,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4356203007518797 [2022-12-13 21:46:53,593 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2781 transitions. [2022-12-13 21:46:53,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2781 transitions. [2022-12-13 21:46:53,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:46:53,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2781 transitions. [2022-12-13 21:46:53,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 198.64285714285714) internal successors, (2781), 14 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:53,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:53,601 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:46:53,601 INFO L175 Difference]: Start difference. First operand has 364 places, 1564 transitions, 56495 flow. Second operand 14 states and 2781 transitions. [2022-12-13 21:46:53,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1729 transitions, 62393 flow [2022-12-13 21:47:03,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1729 transitions, 62020 flow, removed 116 selfloop flow, removed 5 redundant places. [2022-12-13 21:47:03,267 INFO L231 Difference]: Finished difference. Result has 377 places, 1579 transitions, 57454 flow [2022-12-13 21:47:03,268 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=56137, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=355, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=57454, PETRI_PLACES=377, PETRI_TRANSITIONS=1579} [2022-12-13 21:47:03,269 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 291 predicate places. [2022-12-13 21:47:03,269 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 1579 transitions, 57454 flow [2022-12-13 21:47:03,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:03,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:47:03,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:03,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 21:47:03,269 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:47:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1165656717, now seen corresponding path program 12 times [2022-12-13 21:47:03,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:03,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94169218] [2022-12-13 21:47:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:03,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:47:03,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:03,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94169218] [2022-12-13 21:47:03,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94169218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:03,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:03,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:47:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218027408] [2022-12-13 21:47:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:03,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:47:03,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:03,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:47:03,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:47:04,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:47:04,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 1579 transitions, 57454 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:04,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:47:04,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:47:04,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:47:13,569 INFO L130 PetriNetUnfolder]: 7216/12489 cut-off events. [2022-12-13 21:47:13,569 INFO L131 PetriNetUnfolder]: For 913101/913101 co-relation queries the response was YES. [2022-12-13 21:47:13,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164958 conditions, 12489 events. 7216/12489 cut-off events. For 913101/913101 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 92756 event pairs, 1289 based on Foata normal form. 18/12489 useless extension candidates. Maximal degree in co-relation 164826. Up to 6523 conditions per place. [2022-12-13 21:47:13,749 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1355 selfloop transitions, 440 changer transitions 0/1814 dead transitions. [2022-12-13 21:47:13,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1814 transitions, 66199 flow [2022-12-13 21:47:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:47:13,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:47:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2787 transitions. [2022-12-13 21:47:13,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43656015037593987 [2022-12-13 21:47:13,752 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2787 transitions. [2022-12-13 21:47:13,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2787 transitions. [2022-12-13 21:47:13,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:13,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2787 transitions. [2022-12-13 21:47:13,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.07142857142858) internal successors, (2787), 14 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:13,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:13,757 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:13,757 INFO L175 Difference]: Start difference. First operand has 377 places, 1579 transitions, 57454 flow. Second operand 14 states and 2787 transitions. [2022-12-13 21:47:13,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1814 transitions, 66199 flow [2022-12-13 21:47:23,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1814 transitions, 65504 flow, removed 41 selfloop flow, removed 6 redundant places. [2022-12-13 21:47:23,533 INFO L231 Difference]: Finished difference. Result has 392 places, 1642 transitions, 60512 flow [2022-12-13 21:47:23,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=56825, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=379, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=60512, PETRI_PLACES=392, PETRI_TRANSITIONS=1642} [2022-12-13 21:47:23,534 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 306 predicate places. [2022-12-13 21:47:23,534 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 1642 transitions, 60512 flow [2022-12-13 21:47:23,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:23,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:47:23,535 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:23,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 21:47:23,535 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:47:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:23,536 INFO L85 PathProgramCache]: Analyzing trace with hash 74226449, now seen corresponding path program 13 times [2022-12-13 21:47:23,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:23,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668241231] [2022-12-13 21:47:23,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:23,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:47:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:24,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668241231] [2022-12-13 21:47:24,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668241231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:24,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:24,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:47:24,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279832114] [2022-12-13 21:47:24,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:24,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:47:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:47:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:47:26,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:47:26,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1642 transitions, 60512 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:26,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:47:26,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:47:26,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:47:36,332 INFO L130 PetriNetUnfolder]: 7312/12643 cut-off events. [2022-12-13 21:47:36,332 INFO L131 PetriNetUnfolder]: For 976488/976488 co-relation queries the response was YES. [2022-12-13 21:47:36,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169779 conditions, 12643 events. 7312/12643 cut-off events. For 976488/976488 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 94353 event pairs, 1449 based on Foata normal form. 12/12637 useless extension candidates. Maximal degree in co-relation 169639. Up to 7168 conditions per place. [2022-12-13 21:47:36,617 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1174 selfloop transitions, 616 changer transitions 0/1809 dead transitions. [2022-12-13 21:47:36,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 1809 transitions, 67212 flow [2022-12-13 21:47:36,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:47:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:47:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2787 transitions. [2022-12-13 21:47:36,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43656015037593987 [2022-12-13 21:47:36,620 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2787 transitions. [2022-12-13 21:47:36,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2787 transitions. [2022-12-13 21:47:36,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:36,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2787 transitions. [2022-12-13 21:47:36,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.07142857142858) internal successors, (2787), 14 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:36,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:36,626 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:36,626 INFO L175 Difference]: Start difference. First operand has 392 places, 1642 transitions, 60512 flow. Second operand 14 states and 2787 transitions. [2022-12-13 21:47:36,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 1809 transitions, 67212 flow [2022-12-13 21:47:46,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1809 transitions, 66716 flow, removed 103 selfloop flow, removed 7 redundant places. [2022-12-13 21:47:46,651 INFO L231 Difference]: Finished difference. Result has 403 places, 1686 transitions, 63179 flow [2022-12-13 21:47:46,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=60046, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=577, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=63179, PETRI_PLACES=403, PETRI_TRANSITIONS=1686} [2022-12-13 21:47:46,652 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 317 predicate places. [2022-12-13 21:47:46,652 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1686 transitions, 63179 flow [2022-12-13 21:47:46,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:46,652 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:47:46,652 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:46,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 21:47:46,653 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:47:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash 818339533, now seen corresponding path program 14 times [2022-12-13 21:47:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:46,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549218282] [2022-12-13 21:47:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:47:47,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:47,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549218282] [2022-12-13 21:47:47,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549218282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:47,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:47,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:47:47,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841778974] [2022-12-13 21:47:47,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:47,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:47:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:47,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:47:47,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:47:48,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:47:48,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1686 transitions, 63179 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:48,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:47:48,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:47:48,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:47:57,627 INFO L130 PetriNetUnfolder]: 7428/12891 cut-off events. [2022-12-13 21:47:57,628 INFO L131 PetriNetUnfolder]: For 1029355/1029355 co-relation queries the response was YES. [2022-12-13 21:47:57,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174458 conditions, 12891 events. 7428/12891 cut-off events. For 1029355/1029355 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 96683 event pairs, 1376 based on Foata normal form. 22/12895 useless extension candidates. Maximal degree in co-relation 174316. Up to 6719 conditions per place. [2022-12-13 21:47:57,828 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 1363 selfloop transitions, 471 changer transitions 0/1853 dead transitions. [2022-12-13 21:47:57,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1853 transitions, 69846 flow [2022-12-13 21:47:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:47:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:47:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2789 transitions. [2022-12-13 21:47:57,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4368734335839599 [2022-12-13 21:47:57,832 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2789 transitions. [2022-12-13 21:47:57,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2789 transitions. [2022-12-13 21:47:57,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:57,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2789 transitions. [2022-12-13 21:47:57,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.21428571428572) internal successors, (2789), 14 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:57,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:57,839 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:57,839 INFO L175 Difference]: Start difference. First operand has 403 places, 1686 transitions, 63179 flow. Second operand 14 states and 2789 transitions. [2022-12-13 21:47:57,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1853 transitions, 69846 flow [2022-12-13 21:48:08,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 1853 transitions, 68975 flow, removed 83 selfloop flow, removed 6 redundant places. [2022-12-13 21:48:08,566 INFO L231 Difference]: Finished difference. Result has 416 places, 1711 transitions, 64571 flow [2022-12-13 21:48:08,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=62322, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=64571, PETRI_PLACES=416, PETRI_TRANSITIONS=1711} [2022-12-13 21:48:08,567 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 330 predicate places. [2022-12-13 21:48:08,568 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 1711 transitions, 64571 flow [2022-12-13 21:48:08,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:08,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:48:08,568 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:48:08,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 21:48:08,568 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:48:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:48:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash 62333529, now seen corresponding path program 15 times [2022-12-13 21:48:08,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:48:08,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418854564] [2022-12-13 21:48:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:48:08,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:48:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:48:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:48:08,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:48:08,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418854564] [2022-12-13 21:48:08,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418854564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:48:08,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:48:08,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:48:08,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531372099] [2022-12-13 21:48:08,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:48:08,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:48:08,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:48:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:48:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:48:09,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:48:09,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 1711 transitions, 64571 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:09,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:48:09,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:48:09,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:48:19,192 INFO L130 PetriNetUnfolder]: 7459/12992 cut-off events. [2022-12-13 21:48:19,192 INFO L131 PetriNetUnfolder]: For 1070698/1070698 co-relation queries the response was YES. [2022-12-13 21:48:19,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176538 conditions, 12992 events. 7459/12992 cut-off events. For 1070698/1070698 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 97925 event pairs, 1373 based on Foata normal form. 22/12996 useless extension candidates. Maximal degree in co-relation 176390. Up to 6753 conditions per place. [2022-12-13 21:48:19,423 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 1396 selfloop transitions, 462 changer transitions 0/1877 dead transitions. [2022-12-13 21:48:19,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 1877 transitions, 70980 flow [2022-12-13 21:48:19,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:48:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:48:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2789 transitions. [2022-12-13 21:48:19,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4368734335839599 [2022-12-13 21:48:19,426 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2789 transitions. [2022-12-13 21:48:19,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2789 transitions. [2022-12-13 21:48:19,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:48:19,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2789 transitions. [2022-12-13 21:48:19,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.21428571428572) internal successors, (2789), 14 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:19,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:19,431 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 456.0) internal successors, (6840), 15 states have internal predecessors, (6840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:19,431 INFO L175 Difference]: Start difference. First operand has 416 places, 1711 transitions, 64571 flow. Second operand 14 states and 2789 transitions. [2022-12-13 21:48:19,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 1877 transitions, 70980 flow [2022-12-13 21:48:30,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 1877 transitions, 70215 flow, removed 66 selfloop flow, removed 7 redundant places. [2022-12-13 21:48:30,386 INFO L231 Difference]: Finished difference. Result has 428 places, 1732 transitions, 65701 flow [2022-12-13 21:48:30,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=63836, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=441, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=65701, PETRI_PLACES=428, PETRI_TRANSITIONS=1732} [2022-12-13 21:48:30,388 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 342 predicate places. [2022-12-13 21:48:30,388 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 1732 transitions, 65701 flow [2022-12-13 21:48:30,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:30,388 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:48:30,388 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:48:30,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 21:48:30,388 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:48:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:48:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash 592122587, now seen corresponding path program 16 times [2022-12-13 21:48:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:48:30,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708769297] [2022-12-13 21:48:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:48:30,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:48:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:48:31,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:48:31,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:48:31,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708769297] [2022-12-13 21:48:31,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708769297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:48:31,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:48:31,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:48:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134605450] [2022-12-13 21:48:31,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:48:31,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:48:31,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:48:31,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:48:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:48:33,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:48:33,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 1732 transitions, 65701 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:33,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:48:33,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:48:33,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:48:45,356 INFO L130 PetriNetUnfolder]: 7561/13086 cut-off events. [2022-12-13 21:48:45,356 INFO L131 PetriNetUnfolder]: For 1105055/1105065 co-relation queries the response was YES. [2022-12-13 21:48:45,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179925 conditions, 13086 events. 7561/13086 cut-off events. For 1105055/1105065 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 98968 event pairs, 976 based on Foata normal form. 6/13084 useless extension candidates. Maximal degree in co-relation 179771. Up to 7016 conditions per place. [2022-12-13 21:48:45,606 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1390 selfloop transitions, 653 changer transitions 0/2062 dead transitions. [2022-12-13 21:48:45,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 2062 transitions, 77317 flow [2022-12-13 21:48:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:48:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 21:48:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3540 transitions. [2022-12-13 21:48:45,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43128654970760233 [2022-12-13 21:48:45,611 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3540 transitions. [2022-12-13 21:48:45,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3540 transitions. [2022-12-13 21:48:45,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:48:45,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3540 transitions. [2022-12-13 21:48:45,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 196.66666666666666) internal successors, (3540), 18 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:45,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:45,620 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:45,621 INFO L175 Difference]: Start difference. First operand has 428 places, 1732 transitions, 65701 flow. Second operand 18 states and 3540 transitions. [2022-12-13 21:48:45,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 2062 transitions, 77317 flow [2022-12-13 21:48:57,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 2062 transitions, 76502 flow, removed 57 selfloop flow, removed 6 redundant places. [2022-12-13 21:48:57,636 INFO L231 Difference]: Finished difference. Result has 445 places, 1803 transitions, 69765 flow [2022-12-13 21:48:57,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=64974, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=585, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=69765, PETRI_PLACES=445, PETRI_TRANSITIONS=1803} [2022-12-13 21:48:57,637 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 359 predicate places. [2022-12-13 21:48:57,638 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 1803 transitions, 69765 flow [2022-12-13 21:48:57,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:57,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:48:57,638 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:48:57,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 21:48:57,638 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:48:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:48:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1677305997, now seen corresponding path program 17 times [2022-12-13 21:48:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:48:57,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707589910] [2022-12-13 21:48:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:48:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:48:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:48:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:48:57,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:48:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707589910] [2022-12-13 21:48:57,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707589910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:48:57,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:48:57,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:48:57,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901932189] [2022-12-13 21:48:57,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:48:57,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:48:57,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:48:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:48:57,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:48:59,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:48:59,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 1803 transitions, 69765 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:48:59,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:48:59,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:48:59,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:49:10,886 INFO L130 PetriNetUnfolder]: 8471/14874 cut-off events. [2022-12-13 21:49:10,887 INFO L131 PetriNetUnfolder]: For 1341432/1341432 co-relation queries the response was YES. [2022-12-13 21:49:11,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204073 conditions, 14874 events. 8471/14874 cut-off events. For 1341432/1341432 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 115936 event pairs, 1329 based on Foata normal form. 58/14914 useless extension candidates. Maximal degree in co-relation 203913. Up to 7631 conditions per place. [2022-12-13 21:49:11,211 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1504 selfloop transitions, 703 changer transitions 0/2226 dead transitions. [2022-12-13 21:49:11,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 2226 transitions, 85509 flow [2022-12-13 21:49:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:49:11,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 21:49:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3581 transitions. [2022-12-13 21:49:11,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4362816764132554 [2022-12-13 21:49:11,214 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3581 transitions. [2022-12-13 21:49:11,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3581 transitions. [2022-12-13 21:49:11,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:49:11,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3581 transitions. [2022-12-13 21:49:11,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 198.94444444444446) internal successors, (3581), 18 states have internal predecessors, (3581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:11,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:11,221 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:11,221 INFO L175 Difference]: Start difference. First operand has 445 places, 1803 transitions, 69765 flow. Second operand 18 states and 3581 transitions. [2022-12-13 21:49:11,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 2226 transitions, 85509 flow [2022-12-13 21:49:26,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 2226 transitions, 85146 flow, removed 109 selfloop flow, removed 7 redundant places. [2022-12-13 21:49:26,775 INFO L231 Difference]: Finished difference. Result has 467 places, 1964 transitions, 78355 flow [2022-12-13 21:49:26,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=69420, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=548, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=78355, PETRI_PLACES=467, PETRI_TRANSITIONS=1964} [2022-12-13 21:49:26,776 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 381 predicate places. [2022-12-13 21:49:26,776 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 1964 transitions, 78355 flow [2022-12-13 21:49:26,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:26,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:49:26,776 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:49:26,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 21:49:26,776 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:49:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:49:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1913707833, now seen corresponding path program 18 times [2022-12-13 21:49:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:49:26,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285481395] [2022-12-13 21:49:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:49:26,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:49:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:49:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:49:27,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:49:27,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285481395] [2022-12-13 21:49:27,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285481395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:49:27,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:49:27,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 21:49:27,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687232891] [2022-12-13 21:49:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:49:27,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 21:49:27,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:49:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 21:49:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:49:28,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 456 [2022-12-13 21:49:28,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1964 transitions, 78355 flow. Second operand has 14 states, 14 states have (on average 184.07142857142858) internal successors, (2577), 14 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:28,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:49:28,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 456 [2022-12-13 21:49:28,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:49:42,285 INFO L130 PetriNetUnfolder]: 8531/14912 cut-off events. [2022-12-13 21:49:42,285 INFO L131 PetriNetUnfolder]: For 1448907/1448917 co-relation queries the response was YES. [2022-12-13 21:49:42,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212158 conditions, 14912 events. 8531/14912 cut-off events. For 1448907/1448917 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 116766 event pairs, 1199 based on Foata normal form. 22/14926 useless extension candidates. Maximal degree in co-relation 211987. Up to 7652 conditions per place. [2022-12-13 21:49:42,584 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 1715 selfloop transitions, 525 changer transitions 0/2259 dead transitions. [2022-12-13 21:49:42,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 2259 transitions, 89044 flow [2022-12-13 21:49:42,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 21:49:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 21:49:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2544 transitions. [2022-12-13 21:49:42,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4291497975708502 [2022-12-13 21:49:42,587 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2544 transitions. [2022-12-13 21:49:42,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2544 transitions. [2022-12-13 21:49:42,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:49:42,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2544 transitions. [2022-12-13 21:49:42,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.69230769230768) internal successors, (2544), 13 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:42,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:42,591 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:49:42,592 INFO L175 Difference]: Start difference. First operand has 467 places, 1964 transitions, 78355 flow. Second operand 13 states and 2544 transitions. [2022-12-13 21:49:42,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 2259 transitions, 89044 flow [2022-12-13 21:50:01,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 2259 transitions, 88496 flow, removed 270 selfloop flow, removed 3 redundant places. [2022-12-13 21:50:01,073 INFO L231 Difference]: Finished difference. Result has 482 places, 2002 transitions, 80651 flow [2022-12-13 21:50:01,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=77949, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=487, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=80651, PETRI_PLACES=482, PETRI_TRANSITIONS=2002} [2022-12-13 21:50:01,074 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 396 predicate places. [2022-12-13 21:50:01,074 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 2002 transitions, 80651 flow [2022-12-13 21:50:01,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 184.07142857142858) internal successors, (2577), 14 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:01,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:50:01,075 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:50:01,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 21:50:01,075 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:50:01,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:01,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1280606075, now seen corresponding path program 19 times [2022-12-13 21:50:01,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:01,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673120689] [2022-12-13 21:50:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:50:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:50:03,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:50:03,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673120689] [2022-12-13 21:50:03,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673120689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:50:03,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:50:03,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:50:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990627202] [2022-12-13 21:50:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:50:03,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:50:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:50:03,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:50:03,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:50:05,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:50:05,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 2002 transitions, 80651 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:05,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:50:05,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:50:05,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:50:19,912 INFO L130 PetriNetUnfolder]: 8557/14987 cut-off events. [2022-12-13 21:50:19,912 INFO L131 PetriNetUnfolder]: For 1530235/1530240 co-relation queries the response was YES. [2022-12-13 21:50:20,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214779 conditions, 14987 events. 8557/14987 cut-off events. For 1530235/1530240 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 117903 event pairs, 1382 based on Foata normal form. 5/14979 useless extension candidates. Maximal degree in co-relation 214602. Up to 7676 conditions per place. [2022-12-13 21:50:20,208 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1616 selfloop transitions, 674 changer transitions 0/2309 dead transitions. [2022-12-13 21:50:20,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 2309 transitions, 91456 flow [2022-12-13 21:50:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 21:50:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 21:50:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2610 transitions. [2022-12-13 21:50:20,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4402834008097166 [2022-12-13 21:50:20,211 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2610 transitions. [2022-12-13 21:50:20,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2610 transitions. [2022-12-13 21:50:20,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:50:20,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2610 transitions. [2022-12-13 21:50:20,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 200.76923076923077) internal successors, (2610), 13 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:20,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:20,215 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:20,215 INFO L175 Difference]: Start difference. First operand has 482 places, 2002 transitions, 80651 flow. Second operand 13 states and 2610 transitions. [2022-12-13 21:50:20,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 2309 transitions, 91456 flow [2022-12-13 21:50:38,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 2309 transitions, 90913 flow, removed 76 selfloop flow, removed 6 redundant places. [2022-12-13 21:50:38,472 INFO L231 Difference]: Finished difference. Result has 494 places, 2040 transitions, 83541 flow [2022-12-13 21:50:38,473 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=80110, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=639, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=83541, PETRI_PLACES=494, PETRI_TRANSITIONS=2040} [2022-12-13 21:50:38,473 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 408 predicate places. [2022-12-13 21:50:38,473 INFO L495 AbstractCegarLoop]: Abstraction has has 494 places, 2040 transitions, 83541 flow [2022-12-13 21:50:38,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:38,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:50:38,473 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:50:38,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 21:50:38,473 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:50:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1548445619, now seen corresponding path program 20 times [2022-12-13 21:50:38,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:38,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312437721] [2022-12-13 21:50:38,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:38,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:50:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:50:38,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:50:38,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312437721] [2022-12-13 21:50:38,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312437721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:50:38,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:50:38,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:50:38,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359729430] [2022-12-13 21:50:38,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:50:38,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:50:38,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:50:38,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:50:38,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:50:39,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:50:39,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 2040 transitions, 83541 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:39,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:50:39,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:50:39,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:50:53,121 INFO L130 PetriNetUnfolder]: 8533/14947 cut-off events. [2022-12-13 21:50:53,121 INFO L131 PetriNetUnfolder]: For 1593938/1593943 co-relation queries the response was YES. [2022-12-13 21:50:53,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217698 conditions, 14947 events. 8533/14947 cut-off events. For 1593938/1593943 co-relation queries the response was YES. Maximal size of possible extension queue 930. Compared 117248 event pairs, 1381 based on Foata normal form. 17/14951 useless extension candidates. Maximal degree in co-relation 217515. Up to 7660 conditions per place. [2022-12-13 21:50:53,405 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1751 selfloop transitions, 543 changer transitions 0/2313 dead transitions. [2022-12-13 21:50:53,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 2313 transitions, 93410 flow [2022-12-13 21:50:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 21:50:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 21:50:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2602 transitions. [2022-12-13 21:50:53,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43893387314439947 [2022-12-13 21:50:53,407 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2602 transitions. [2022-12-13 21:50:53,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2602 transitions. [2022-12-13 21:50:53,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:50:53,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2602 transitions. [2022-12-13 21:50:53,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 200.15384615384616) internal successors, (2602), 13 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:53,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:53,412 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:53,412 INFO L175 Difference]: Start difference. First operand has 494 places, 2040 transitions, 83541 flow. Second operand 13 states and 2602 transitions. [2022-12-13 21:50:53,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 2313 transitions, 93410 flow [2022-12-13 21:51:13,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 2313 transitions, 92717 flow, removed 156 selfloop flow, removed 4 redundant places. [2022-12-13 21:51:13,403 INFO L231 Difference]: Finished difference. Result has 507 places, 2057 transitions, 84841 flow [2022-12-13 21:51:13,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=82860, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=526, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=84841, PETRI_PLACES=507, PETRI_TRANSITIONS=2057} [2022-12-13 21:51:13,405 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 421 predicate places. [2022-12-13 21:51:13,405 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 2057 transitions, 84841 flow [2022-12-13 21:51:13,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:13,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:51:13,405 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:51:13,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 21:51:13,405 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:51:13,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:51:13,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1670808279, now seen corresponding path program 21 times [2022-12-13 21:51:13,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:51:13,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061032305] [2022-12-13 21:51:13,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:51:13,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:51:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:51:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:51:14,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:51:14,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061032305] [2022-12-13 21:51:14,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061032305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:51:14,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:51:14,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:51:14,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828106106] [2022-12-13 21:51:14,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:51:14,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:51:14,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:51:14,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:51:14,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:51:16,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:51:16,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 2057 transitions, 84841 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:16,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:51:16,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:51:16,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:51:30,773 INFO L130 PetriNetUnfolder]: 8747/15328 cut-off events. [2022-12-13 21:51:30,773 INFO L131 PetriNetUnfolder]: For 1731448/1731448 co-relation queries the response was YES. [2022-12-13 21:51:31,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224781 conditions, 15328 events. 8747/15328 cut-off events. For 1731448/1731448 co-relation queries the response was YES. Maximal size of possible extension queue 962. Compared 120822 event pairs, 1568 based on Foata normal form. 8/15318 useless extension candidates. Maximal degree in co-relation 224594. Up to 7906 conditions per place. [2022-12-13 21:51:31,094 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1199 selfloop transitions, 1099 changer transitions 0/2317 dead transitions. [2022-12-13 21:51:31,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 2317 transitions, 95716 flow [2022-12-13 21:51:31,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 21:51:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 21:51:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3184 transitions. [2022-12-13 21:51:31,097 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43640350877192985 [2022-12-13 21:51:31,097 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3184 transitions. [2022-12-13 21:51:31,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3184 transitions. [2022-12-13 21:51:31,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:51:31,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3184 transitions. [2022-12-13 21:51:31,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 199.0) internal successors, (3184), 16 states have internal predecessors, (3184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:31,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:31,102 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 456.0) internal successors, (7752), 17 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:31,102 INFO L175 Difference]: Start difference. First operand has 507 places, 2057 transitions, 84841 flow. Second operand 16 states and 3184 transitions. [2022-12-13 21:51:31,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 2317 transitions, 95716 flow [2022-12-13 21:51:52,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 2317 transitions, 95210 flow, removed 78 selfloop flow, removed 5 redundant places. [2022-12-13 21:51:52,692 INFO L231 Difference]: Finished difference. Result has 523 places, 2188 transitions, 92768 flow [2022-12-13 21:51:52,693 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=84343, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=988, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1003, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=92768, PETRI_PLACES=523, PETRI_TRANSITIONS=2188} [2022-12-13 21:51:52,694 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 437 predicate places. [2022-12-13 21:51:52,694 INFO L495 AbstractCegarLoop]: Abstraction has has 523 places, 2188 transitions, 92768 flow [2022-12-13 21:51:52,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:52,694 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:51:52,694 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:51:52,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 21:51:52,694 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:51:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:51:52,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1677785139, now seen corresponding path program 22 times [2022-12-13 21:51:52,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:51:52,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13942223] [2022-12-13 21:51:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:51:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:51:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:51:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:51:53,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:51:53,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13942223] [2022-12-13 21:51:53,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13942223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:51:53,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:51:53,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:51:53,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078113641] [2022-12-13 21:51:53,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:51:53,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:51:53,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:51:53,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:51:53,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:51:54,209 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:51:54,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 2188 transitions, 92768 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:51:54,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:51:54,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:51:54,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:52:10,167 INFO L130 PetriNetUnfolder]: 9220/16305 cut-off events. [2022-12-13 21:52:10,167 INFO L131 PetriNetUnfolder]: For 1977071/1977071 co-relation queries the response was YES. [2022-12-13 21:52:10,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244014 conditions, 16305 events. 9220/16305 cut-off events. For 1977071/1977071 co-relation queries the response was YES. Maximal size of possible extension queue 1015. Compared 130779 event pairs, 1608 based on Foata normal form. 80/16367 useless extension candidates. Maximal degree in co-relation 243821. Up to 8416 conditions per place. [2022-12-13 21:52:10,502 INFO L137 encePairwiseOnDemand]: 439/456 looper letters, 1626 selfloop transitions, 904 changer transitions 0/2549 dead transitions. [2022-12-13 21:52:10,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 2549 transitions, 108694 flow [2022-12-13 21:52:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:52:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 21:52:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3574 transitions. [2022-12-13 21:52:10,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4354288499025341 [2022-12-13 21:52:10,505 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3574 transitions. [2022-12-13 21:52:10,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3574 transitions. [2022-12-13 21:52:10,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:52:10,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3574 transitions. [2022-12-13 21:52:10,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 198.55555555555554) internal successors, (3574), 18 states have internal predecessors, (3574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:10,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:10,511 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 456.0) internal successors, (8664), 19 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:10,511 INFO L175 Difference]: Start difference. First operand has 523 places, 2188 transitions, 92768 flow. Second operand 18 states and 3574 transitions. [2022-12-13 21:52:10,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 2549 transitions, 108694 flow [2022-12-13 21:52:39,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 2549 transitions, 107574 flow, removed 162 selfloop flow, removed 4 redundant places. [2022-12-13 21:52:39,935 INFO L231 Difference]: Finished difference. Result has 544 places, 2308 transitions, 100160 flow [2022-12-13 21:52:39,936 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=91779, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=788, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=100160, PETRI_PLACES=544, PETRI_TRANSITIONS=2308} [2022-12-13 21:52:39,936 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 458 predicate places. [2022-12-13 21:52:39,936 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 2308 transitions, 100160 flow [2022-12-13 21:52:39,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:39,937 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:52:39,937 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:52:39,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 21:52:39,937 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:52:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:52:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash 930933327, now seen corresponding path program 23 times [2022-12-13 21:52:39,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:52:39,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134912098] [2022-12-13 21:52:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:52:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:52:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:52:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:52:40,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:52:40,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134912098] [2022-12-13 21:52:40,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134912098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:52:40,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:52:40,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:52:40,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243443658] [2022-12-13 21:52:40,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:52:40,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:52:40,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:52:40,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:52:40,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:52:41,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 456 [2022-12-13 21:52:41,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 2308 transitions, 100160 flow. Second operand has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:41,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:52:41,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 456 [2022-12-13 21:52:41,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:52:58,343 INFO L130 PetriNetUnfolder]: 9394/16665 cut-off events. [2022-12-13 21:52:58,343 INFO L131 PetriNetUnfolder]: For 2035433/2035443 co-relation queries the response was YES. [2022-12-13 21:52:58,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251356 conditions, 16665 events. 9394/16665 cut-off events. For 2035433/2035443 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 134722 event pairs, 1336 based on Foata normal form. 84/16741 useless extension candidates. Maximal degree in co-relation 251155. Up to 8514 conditions per place. [2022-12-13 21:52:58,698 INFO L137 encePairwiseOnDemand]: 441/456 looper letters, 1674 selfloop transitions, 866 changer transitions 0/2559 dead transitions. [2022-12-13 21:52:58,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 2559 transitions, 111338 flow [2022-12-13 21:52:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 21:52:58,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-13 21:52:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4308 transitions. [2022-12-13 21:52:58,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42942583732057416 [2022-12-13 21:52:58,703 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4308 transitions. [2022-12-13 21:52:58,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4308 transitions. [2022-12-13 21:52:58,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:52:58,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4308 transitions. [2022-12-13 21:52:58,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 195.8181818181818) internal successors, (4308), 22 states have internal predecessors, (4308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:58,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 456.0) internal successors, (10488), 23 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:58,710 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 456.0) internal successors, (10488), 23 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:52:58,710 INFO L175 Difference]: Start difference. First operand has 544 places, 2308 transitions, 100160 flow. Second operand 22 states and 4308 transitions. [2022-12-13 21:52:58,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 2559 transitions, 111338 flow [2022-12-13 21:53:28,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 2559 transitions, 110264 flow, removed 221 selfloop flow, removed 9 redundant places. [2022-12-13 21:53:28,978 INFO L231 Difference]: Finished difference. Result has 561 places, 2390 transitions, 105010 flow [2022-12-13 21:53:28,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=99141, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=788, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=105010, PETRI_PLACES=561, PETRI_TRANSITIONS=2390} [2022-12-13 21:53:28,979 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 475 predicate places. [2022-12-13 21:53:28,979 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 2390 transitions, 105010 flow [2022-12-13 21:53:28,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 187.15384615384616) internal successors, (2433), 13 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:28,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:53:28,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:53:28,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 21:53:28,980 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:53:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:28,980 INFO L85 PathProgramCache]: Analyzing trace with hash 783469328, now seen corresponding path program 1 times [2022-12-13 21:53:28,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:28,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123742102] [2022-12-13 21:53:28,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:28,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:53:29,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:29,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123742102] [2022-12-13 21:53:29,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123742102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:29,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:29,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:53:29,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028456149] [2022-12-13 21:53:29,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:29,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:53:29,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:29,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:53:29,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:53:29,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 456 [2022-12-13 21:53:29,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 2390 transitions, 105010 flow. Second operand has 6 states, 6 states have (on average 189.5) internal successors, (1137), 6 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:29,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:53:29,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 456 [2022-12-13 21:53:29,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:53:41,069 INFO L130 PetriNetUnfolder]: 6739/13127 cut-off events. [2022-12-13 21:53:41,070 INFO L131 PetriNetUnfolder]: For 1300605/1305803 co-relation queries the response was YES. [2022-12-13 21:53:41,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201862 conditions, 13127 events. 6739/13127 cut-off events. For 1300605/1305803 co-relation queries the response was YES. Maximal size of possible extension queue 1011. Compared 116519 event pairs, 2240 based on Foata normal form. 250/12768 useless extension candidates. Maximal degree in co-relation 201660. Up to 11104 conditions per place. [2022-12-13 21:53:41,378 INFO L137 encePairwiseOnDemand]: 451/456 looper letters, 1778 selfloop transitions, 4 changer transitions 0/2389 dead transitions. [2022-12-13 21:53:41,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 2389 transitions, 108572 flow [2022-12-13 21:53:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:53:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:53:41,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1163 transitions. [2022-12-13 21:53:41,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42507309941520466 [2022-12-13 21:53:41,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1163 transitions. [2022-12-13 21:53:41,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1163 transitions. [2022-12-13 21:53:41,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:53:41,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1163 transitions. [2022-12-13 21:53:41,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:41,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:41,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:41,383 INFO L175 Difference]: Start difference. First operand has 561 places, 2390 transitions, 105010 flow. Second operand 6 states and 1163 transitions. [2022-12-13 21:53:41,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 2389 transitions, 108572 flow [2022-12-13 21:53:56,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 2389 transitions, 107812 flow, removed 226 selfloop flow, removed 6 redundant places. [2022-12-13 21:53:56,074 INFO L231 Difference]: Finished difference. Result has 559 places, 2389 transitions, 104256 flow [2022-12-13 21:53:56,075 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=104248, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=104256, PETRI_PLACES=559, PETRI_TRANSITIONS=2389} [2022-12-13 21:53:56,075 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 473 predicate places. [2022-12-13 21:53:56,075 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 2389 transitions, 104256 flow [2022-12-13 21:53:56,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.5) internal successors, (1137), 6 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:56,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:53:56,076 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] [2022-12-13 21:53:56,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 21:53:56,076 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:53:56,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2077969912, now seen corresponding path program 1 times [2022-12-13 21:53:56,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:56,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062756906] [2022-12-13 21:53:56,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:56,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:53:56,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:56,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062756906] [2022-12-13 21:53:56,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062756906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:56,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:56,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:53:56,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021440046] [2022-12-13 21:53:56,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:56,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:53:56,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:53:56,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:53:56,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 456 [2022-12-13 21:53:56,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 2389 transitions, 104256 flow. Second operand has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:56,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:53:56,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 456 [2022-12-13 21:53:56,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:54:08,404 INFO L130 PetriNetUnfolder]: 6719/13095 cut-off events. [2022-12-13 21:54:08,404 INFO L131 PetriNetUnfolder]: For 1272703/1277881 co-relation queries the response was YES. [2022-12-13 21:54:08,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199708 conditions, 13095 events. 6719/13095 cut-off events. For 1272703/1277881 co-relation queries the response was YES. Maximal size of possible extension queue 1007. Compared 116429 event pairs, 2225 based on Foata normal form. 211/12694 useless extension candidates. Maximal degree in co-relation 199506. Up to 11085 conditions per place. [2022-12-13 21:54:08,691 INFO L137 encePairwiseOnDemand]: 449/456 looper letters, 1764 selfloop transitions, 0 changer transitions 28/2390 dead transitions. [2022-12-13 21:54:08,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 2390 transitions, 107826 flow [2022-12-13 21:54:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:54:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:54:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2022-12-13 21:54:08,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42543859649122806 [2022-12-13 21:54:08,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2022-12-13 21:54:08,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2022-12-13 21:54:08,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:54:08,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2022-12-13 21:54:08,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:08,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:08,696 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:08,696 INFO L175 Difference]: Start difference. First operand has 559 places, 2389 transitions, 104256 flow. Second operand 6 states and 1164 transitions. [2022-12-13 21:54:08,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 2390 transitions, 107826 flow [2022-12-13 21:54:22,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 2390 transitions, 107807 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-12-13 21:54:22,794 INFO L231 Difference]: Finished difference. Result has 559 places, 2362 transitions, 104175 flow [2022-12-13 21:54:22,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=104235, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=104175, PETRI_PLACES=559, PETRI_TRANSITIONS=2362} [2022-12-13 21:54:22,796 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 473 predicate places. [2022-12-13 21:54:22,796 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 2362 transitions, 104175 flow [2022-12-13 21:54:22,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:22,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:54:22,796 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] [2022-12-13 21:54:22,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 21:54:22,796 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:54:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash 36814587, now seen corresponding path program 1 times [2022-12-13 21:54:22,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:22,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81287182] [2022-12-13 21:54:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:54:23,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:23,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81287182] [2022-12-13 21:54:23,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81287182] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:23,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:23,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:54:23,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144773998] [2022-12-13 21:54:23,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:23,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:54:23,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:23,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:54:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:54:23,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 456 [2022-12-13 21:54:23,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 2362 transitions, 104175 flow. Second operand has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:23,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:54:23,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 456 [2022-12-13 21:54:23,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:54:35,785 INFO L130 PetriNetUnfolder]: 6832/13179 cut-off events. [2022-12-13 21:54:35,785 INFO L131 PetriNetUnfolder]: For 1273124/1278300 co-relation queries the response was YES. [2022-12-13 21:54:35,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200535 conditions, 13179 events. 6832/13179 cut-off events. For 1273124/1278300 co-relation queries the response was YES. Maximal size of possible extension queue 1006. Compared 116632 event pairs, 2233 based on Foata normal form. 207/12780 useless extension candidates. Maximal degree in co-relation 200333. Up to 11183 conditions per place. [2022-12-13 21:54:36,046 INFO L137 encePairwiseOnDemand]: 448/456 looper letters, 1327 selfloop transitions, 20 changer transitions 493/2398 dead transitions. [2022-12-13 21:54:36,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 2398 transitions, 108511 flow [2022-12-13 21:54:36,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:54:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:54:36,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2022-12-13 21:54:36,047 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44042397660818716 [2022-12-13 21:54:36,047 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1205 transitions. [2022-12-13 21:54:36,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1205 transitions. [2022-12-13 21:54:36,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:54:36,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1205 transitions. [2022-12-13 21:54:36,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.83333333333334) internal successors, (1205), 6 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:36,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:36,050 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:36,050 INFO L175 Difference]: Start difference. First operand has 559 places, 2362 transitions, 104175 flow. Second operand 6 states and 1205 transitions. [2022-12-13 21:54:36,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 2398 transitions, 108511 flow [2022-12-13 21:54:50,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 2398 transitions, 106555 flow, removed 978 selfloop flow, removed 1 redundant places. [2022-12-13 21:54:50,216 INFO L231 Difference]: Finished difference. Result has 537 places, 1893 transitions, 83045 flow [2022-12-13 21:54:50,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=102259, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=83045, PETRI_PLACES=537, PETRI_TRANSITIONS=1893} [2022-12-13 21:54:50,217 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 451 predicate places. [2022-12-13 21:54:50,218 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 1893 transitions, 83045 flow [2022-12-13 21:54:50,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:50,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:54:50,218 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] [2022-12-13 21:54:50,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 21:54:50,218 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:54:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 478512343, now seen corresponding path program 1 times [2022-12-13 21:54:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:50,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282076818] [2022-12-13 21:54:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:54:50,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:50,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282076818] [2022-12-13 21:54:50,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282076818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:50,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:50,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:54:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704157747] [2022-12-13 21:54:50,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:50,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:54:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:50,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:54:50,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:54:51,299 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:54:51,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 1893 transitions, 83045 flow. Second operand has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:54:51,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:54:51,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:54:51,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:55:00,106 INFO L130 PetriNetUnfolder]: 4954/10466 cut-off events. [2022-12-13 21:55:00,106 INFO L131 PetriNetUnfolder]: For 1050492/1052676 co-relation queries the response was YES. [2022-12-13 21:55:00,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151157 conditions, 10466 events. 4954/10466 cut-off events. For 1050492/1052676 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 97107 event pairs, 1102 based on Foata normal form. 83/10157 useless extension candidates. Maximal degree in co-relation 150951. Up to 8219 conditions per place. [2022-12-13 21:55:00,274 INFO L137 encePairwiseOnDemand]: 448/456 looper letters, 119 selfloop transitions, 5 changer transitions 1749/1938 dead transitions. [2022-12-13 21:55:00,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1938 transitions, 86305 flow [2022-12-13 21:55:00,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:55:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 21:55:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1761 transitions. [2022-12-13 21:55:00,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42909356725146197 [2022-12-13 21:55:00,276 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1761 transitions. [2022-12-13 21:55:00,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1761 transitions. [2022-12-13 21:55:00,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:55:00,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1761 transitions. [2022-12-13 21:55:00,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 195.66666666666666) internal successors, (1761), 9 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:00,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:00,279 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:00,280 INFO L175 Difference]: Start difference. First operand has 537 places, 1893 transitions, 83045 flow. Second operand 9 states and 1761 transitions. [2022-12-13 21:55:00,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1938 transitions, 86305 flow [2022-12-13 21:55:13,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1938 transitions, 85361 flow, removed 140 selfloop flow, removed 9 redundant places. [2022-12-13 21:55:13,152 INFO L231 Difference]: Finished difference. Result has 540 places, 184 transitions, 5971 flow [2022-12-13 21:55:13,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=82133, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5971, PETRI_PLACES=540, PETRI_TRANSITIONS=184} [2022-12-13 21:55:13,153 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 454 predicate places. [2022-12-13 21:55:13,153 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 184 transitions, 5971 flow [2022-12-13 21:55:13,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:13,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:55:13,153 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] [2022-12-13 21:55:13,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 21:55:13,153 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:55:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:55:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash 362366701, now seen corresponding path program 2 times [2022-12-13 21:55:13,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:55:13,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666594613] [2022-12-13 21:55:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:55:13,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:55:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:55:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:55:13,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:55:13,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666594613] [2022-12-13 21:55:13,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666594613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:55:13,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:55:13,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:55:13,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117805999] [2022-12-13 21:55:13,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:55:13,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:55:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:55:13,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:55:13,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:55:14,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:55:14,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 184 transitions, 5971 flow. Second operand has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:14,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:55:14,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:55:14,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:55:14,543 INFO L130 PetriNetUnfolder]: 159/511 cut-off events. [2022-12-13 21:55:14,543 INFO L131 PetriNetUnfolder]: For 34984/35051 co-relation queries the response was YES. [2022-12-13 21:55:14,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5991 conditions, 511 events. 159/511 cut-off events. For 34984/35051 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2692 event pairs, 53 based on Foata normal form. 8/519 useless extension candidates. Maximal degree in co-relation 5786. Up to 359 conditions per place. [2022-12-13 21:55:14,556 INFO L137 encePairwiseOnDemand]: 447/456 looper letters, 114 selfloop transitions, 11 changer transitions 9/199 dead transitions. [2022-12-13 21:55:14,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 199 transitions, 6630 flow [2022-12-13 21:55:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:55:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 21:55:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1739 transitions. [2022-12-13 21:55:14,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4237329434697856 [2022-12-13 21:55:14,558 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1739 transitions. [2022-12-13 21:55:14,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1739 transitions. [2022-12-13 21:55:14,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:55:14,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1739 transitions. [2022-12-13 21:55:14,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 193.22222222222223) internal successors, (1739), 9 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:14,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:14,561 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:14,562 INFO L175 Difference]: Start difference. First operand has 540 places, 184 transitions, 5971 flow. Second operand 9 states and 1739 transitions. [2022-12-13 21:55:14,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 199 transitions, 6630 flow [2022-12-13 21:55:14,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 199 transitions, 3967 flow, removed 231 selfloop flow, removed 152 redundant places. [2022-12-13 21:55:14,687 INFO L231 Difference]: Finished difference. Result has 268 places, 184 transitions, 3541 flow [2022-12-13 21:55:14,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3511, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3541, PETRI_PLACES=268, PETRI_TRANSITIONS=184} [2022-12-13 21:55:14,688 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 182 predicate places. [2022-12-13 21:55:14,688 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 184 transitions, 3541 flow [2022-12-13 21:55:14,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:14,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:55:14,688 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] [2022-12-13 21:55:14,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 21:55:14,688 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:55:14,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:55:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2007590265, now seen corresponding path program 3 times [2022-12-13 21:55:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:55:14,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088172453] [2022-12-13 21:55:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:55:14,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:55:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:55:15,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:55:15,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:55:15,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088172453] [2022-12-13 21:55:15,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088172453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:55:15,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:55:15,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:55:15,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032226513] [2022-12-13 21:55:15,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:55:15,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:55:15,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:55:15,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:55:15,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:55:15,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:55:15,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 184 transitions, 3541 flow. Second operand has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:15,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:55:15,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:55:15,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:55:16,254 INFO L130 PetriNetUnfolder]: 176/548 cut-off events. [2022-12-13 21:55:16,254 INFO L131 PetriNetUnfolder]: For 8691/8716 co-relation queries the response was YES. [2022-12-13 21:55:16,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3939 conditions, 548 events. 176/548 cut-off events. For 8691/8716 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2884 event pairs, 53 based on Foata normal form. 8/556 useless extension candidates. Maximal degree in co-relation 3824. Up to 290 conditions per place. [2022-12-13 21:55:16,260 INFO L137 encePairwiseOnDemand]: 448/456 looper letters, 114 selfloop transitions, 6 changer transitions 25/210 dead transitions. [2022-12-13 21:55:16,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 210 transitions, 3986 flow [2022-12-13 21:55:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:55:16,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 21:55:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1743 transitions. [2022-12-13 21:55:16,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4247076023391813 [2022-12-13 21:55:16,261 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1743 transitions. [2022-12-13 21:55:16,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1743 transitions. [2022-12-13 21:55:16,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:55:16,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1743 transitions. [2022-12-13 21:55:16,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 193.66666666666666) internal successors, (1743), 9 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:16,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:16,264 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:16,264 INFO L175 Difference]: Start difference. First operand has 268 places, 184 transitions, 3541 flow. Second operand 9 states and 1743 transitions. [2022-12-13 21:55:16,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 210 transitions, 3986 flow [2022-12-13 21:55:16,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 210 transitions, 3887 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-12-13 21:55:16,302 INFO L231 Difference]: Finished difference. Result has 269 places, 182 transitions, 3478 flow [2022-12-13 21:55:16,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3460, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3478, PETRI_PLACES=269, PETRI_TRANSITIONS=182} [2022-12-13 21:55:16,303 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 183 predicate places. [2022-12-13 21:55:16,303 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 182 transitions, 3478 flow [2022-12-13 21:55:16,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:16,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:55:16,303 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] [2022-12-13 21:55:16,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-13 21:55:16,303 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:55:16,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:55:16,304 INFO L85 PathProgramCache]: Analyzing trace with hash 600888445, now seen corresponding path program 4 times [2022-12-13 21:55:16,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:55:16,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322900545] [2022-12-13 21:55:16,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:55:16,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:55:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:55:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:55:16,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:55:16,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322900545] [2022-12-13 21:55:16,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322900545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:55:16,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:55:16,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:55:16,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743639301] [2022-12-13 21:55:16,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:55:16,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:55:16,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:55:16,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:55:16,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:55:17,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:55:17,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 182 transitions, 3478 flow. Second operand has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:17,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:55:17,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:55:17,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:55:17,714 INFO L130 PetriNetUnfolder]: 120/434 cut-off events. [2022-12-13 21:55:17,714 INFO L131 PetriNetUnfolder]: For 6736/6761 co-relation queries the response was YES. [2022-12-13 21:55:17,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 434 events. 120/434 cut-off events. For 6736/6761 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2260 event pairs, 21 based on Foata normal form. 8/442 useless extension candidates. Maximal degree in co-relation 3119. Up to 268 conditions per place. [2022-12-13 21:55:17,718 INFO L137 encePairwiseOnDemand]: 447/456 looper letters, 109 selfloop transitions, 10 changer transitions 16/200 dead transitions. [2022-12-13 21:55:17,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 200 transitions, 3900 flow [2022-12-13 21:55:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:55:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 21:55:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1928 transitions. [2022-12-13 21:55:17,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42280701754385963 [2022-12-13 21:55:17,720 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1928 transitions. [2022-12-13 21:55:17,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1928 transitions. [2022-12-13 21:55:17,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:55:17,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1928 transitions. [2022-12-13 21:55:17,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 192.8) internal successors, (1928), 10 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:17,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:17,723 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 456.0) internal successors, (5016), 11 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:17,724 INFO L175 Difference]: Start difference. First operand has 269 places, 182 transitions, 3478 flow. Second operand 10 states and 1928 transitions. [2022-12-13 21:55:17,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 200 transitions, 3900 flow [2022-12-13 21:55:17,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 200 transitions, 3787 flow, removed 26 selfloop flow, removed 13 redundant places. [2022-12-13 21:55:17,758 INFO L231 Difference]: Finished difference. Result has 265 places, 182 transitions, 3424 flow [2022-12-13 21:55:17,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3393, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3424, PETRI_PLACES=265, PETRI_TRANSITIONS=182} [2022-12-13 21:55:17,758 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 179 predicate places. [2022-12-13 21:55:17,758 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 182 transitions, 3424 flow [2022-12-13 21:55:17,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:17,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:55:17,758 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] [2022-12-13 21:55:17,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-13 21:55:17,759 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:55:17,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:55:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 821639755, now seen corresponding path program 5 times [2022-12-13 21:55:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:55:17,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368119664] [2022-12-13 21:55:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:55:17,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:55:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:55:18,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:55:18,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:55:18,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368119664] [2022-12-13 21:55:18,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368119664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:55:18,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:55:18,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:55:18,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811081006] [2022-12-13 21:55:18,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:55:18,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:55:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:55:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:55:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:55:18,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 456 [2022-12-13 21:55:18,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 182 transitions, 3424 flow. Second operand has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:18,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:55:18,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 456 [2022-12-13 21:55:18,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:55:19,215 INFO L130 PetriNetUnfolder]: 104/388 cut-off events. [2022-12-13 21:55:19,215 INFO L131 PetriNetUnfolder]: For 6187/6212 co-relation queries the response was YES. [2022-12-13 21:55:19,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3006 conditions, 388 events. 104/388 cut-off events. For 6187/6212 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2050 event pairs, 15 based on Foata normal form. 8/396 useless extension candidates. Maximal degree in co-relation 2894. Up to 210 conditions per place. [2022-12-13 21:55:19,218 INFO L137 encePairwiseOnDemand]: 448/456 looper letters, 0 selfloop transitions, 0 changer transitions 195/195 dead transitions. [2022-12-13 21:55:19,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 195 transitions, 3767 flow [2022-12-13 21:55:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:55:19,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 21:55:19,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1735 transitions. [2022-12-13 21:55:19,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4227582846003899 [2022-12-13 21:55:19,219 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1735 transitions. [2022-12-13 21:55:19,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1735 transitions. [2022-12-13 21:55:19,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:55:19,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1735 transitions. [2022-12-13 21:55:19,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 192.77777777777777) internal successors, (1735), 9 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:19,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:19,222 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 456.0) internal successors, (4560), 10 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:19,222 INFO L175 Difference]: Start difference. First operand has 265 places, 182 transitions, 3424 flow. Second operand 9 states and 1735 transitions. [2022-12-13 21:55:19,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 195 transitions, 3767 flow [2022-12-13 21:55:19,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 195 transitions, 3738 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-12-13 21:55:19,254 INFO L231 Difference]: Finished difference. Result has 261 places, 0 transitions, 0 flow [2022-12-13 21:55:19,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3394, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=261, PETRI_TRANSITIONS=0} [2022-12-13 21:55:19,254 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 175 predicate places. [2022-12-13 21:55:19,254 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 0 transitions, 0 flow [2022-12-13 21:55:19,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 190.4) internal successors, (1904), 10 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:55:19,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2022-12-13 21:55:19,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-12-13 21:55:19,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-12-13 21:55:19,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-12-13 21:55:19,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-12-13 21:55:19,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-12-13 21:55:19,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-12-13 21:55:19,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-12-13 21:55:19,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-12-13 21:55:19,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-12-13 21:55:19,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-13 21:55:19,258 INFO L445 BasicCegarLoop]: Path program histogram: [23, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:55:19,261 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:55:19,262 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:55:19,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:55:19 BasicIcfg [2022-12-13 21:55:19,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:55:19,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:55:19,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:55:19,264 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:55:19,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:43:32" (3/4) ... [2022-12-13 21:55:19,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:55:19,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-12-13 21:55:19,274 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2022-12-13 21:55:19,274 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-13 21:55:19,274 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 21:55:19,275 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:55:19,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:55:19,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:55:19,305 INFO L158 Benchmark]: Toolchain (without parser) took 708634.81ms. Allocated memory was 142.6MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 106.6MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2022-12-13 21:55:19,305 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 116.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:55:19,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.28ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 48.9MB in the end (delta: 57.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-12-13 21:55:19,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.74ms. Allocated memory is still 142.6MB. Free memory was 48.9MB in the beginning and 111.9MB in the end (delta: -63.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-12-13 21:55:19,306 INFO L158 Benchmark]: Boogie Preprocessor took 35.38ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 107.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:55:19,306 INFO L158 Benchmark]: RCFGBuilder took 651.49ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 60.3MB in the end (delta: 47.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-12-13 21:55:19,306 INFO L158 Benchmark]: TraceAbstraction took 707171.43ms. Allocated memory was 142.6MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 59.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2022-12-13 21:55:19,307 INFO L158 Benchmark]: Witness Printer took 40.66ms. Allocated memory is still 4.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 21:55:19,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 116.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 675.28ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 48.9MB in the end (delta: 57.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.74ms. Allocated memory is still 142.6MB. Free memory was 48.9MB in the beginning and 111.9MB in the end (delta: -63.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.38ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 107.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 651.49ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 60.3MB in the end (delta: 47.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 707171.43ms. Allocated memory was 142.6MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 59.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 40.66ms. Allocated memory is still 4.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.1s, 245 PlacesBefore, 86 PlacesAfterwards, 244 TransitionsBefore, 83 TransitionsAfterwards, 6560 CoEnabledTransitionPairs, 8 FixpointIterations, 115 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 20 ConcurrentYvCompositions, 2 ChoiceCompositions, 209 TotalNumberOfCompositions, 34126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7452, independent: 6328, independent conditional: 0, independent unconditional: 6328, dependent: 1124, dependent conditional: 0, dependent unconditional: 1124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3214, independent: 3128, independent conditional: 0, independent unconditional: 3128, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7452, independent: 3200, independent conditional: 0, independent unconditional: 3200, dependent: 1038, dependent conditional: 0, dependent unconditional: 1038, unknown: 3214, unknown conditional: 0, unknown unconditional: 3214] , Statistics on independence cache: Total cache size (in pairs): 209, Positive cache size: 141, Positive conditional cache size: 0, Positive unconditional cache size: 141, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1694]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 260 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 707.1s, OverallIterations: 47, TraceHistogramMax: 1, PathProgramHistogramMax: 23, EmptinessCheckTime: 0.0s, AutomataDifference: 638.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 39.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25303 SdHoareTripleChecker+Valid, 99.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20610 mSDsluCounter, 18547 SdHoareTripleChecker+Invalid, 89.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17715 mSDsCounter, 7294 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96298 IncrementalHoareTripleChecker+Invalid, 103592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7294 mSolverCounterUnsat, 832 mSDtfsCounter, 96298 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 792 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 776 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1987 ImplicationChecksByTransitivity, 21.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105010occurred in iteration=39, InterpolantAutomatonStates: 553, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 28.1s InterpolantComputationTime, 749 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 702 ConstructedInterpolants, 0 QuantifiedInterpolants, 15719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 21:55:19,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8478239b-3890-4b3f-9745-db3ca53ad1ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE