./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/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_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- 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 22:32:44,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:32:44,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:32:44,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:32:44,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:32:44,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:32:44,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:32:44,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:32:44,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:32:44,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:32:44,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:32:44,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:32:44,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:32:44,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:32:44,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:32:44,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:32:44,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:32:44,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:32:44,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:32:44,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:32:44,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:32:44,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:32:44,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:32:44,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:32:44,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:32:44,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:32:44,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:32:44,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:32:44,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:32:44,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:32:44,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:32:44,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:32:44,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:32:44,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:32:44,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:32:44,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:32:44,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:32:44,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:32:44,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:32:44,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:32:44,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:32:44,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:32:44,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:32:44,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:32:44,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:32:44,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:32:44,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:32:44,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:32:44,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:32:44,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:32:44,490 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:32:44,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:32:44,490 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:32:44,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:32:44,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:32:44,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:32:44,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:32:44,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:32:44,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:32:44,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:32:44,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:32:44,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:32:44,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:32:44,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:32:44,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:32:44,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:32:44,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:32:44,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:32:44,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:32:44,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:32:44,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:32:44,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:32:44,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:32:44,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:32:44,495 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:32:44,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:32:44,495 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:32:44,495 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_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-12-13 22:32:44,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:32:44,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:32:44,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:32:44,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:32:44,683 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:32:44,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-12-13 22:32:47,341 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:32:47,509 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:32:47,510 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-12-13 22:32:47,516 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/data/cf83d852c/2b79cfcc63554e77a38bf507184fafaa/FLAG71d701410 [2022-12-13 22:32:47,526 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/data/cf83d852c/2b79cfcc63554e77a38bf507184fafaa [2022-12-13 22:32:47,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:32:47,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:32:47,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:32:47,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:32:47,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:32:47,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b4f630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47, skipping insertion in model container [2022-12-13 22:32:47,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:32:47,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:32:47,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,683 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_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-12-13 22:32:47,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:32:47,694 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:32:47,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:32:47,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:32:47,722 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_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-12-13 22:32:47,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:32:47,733 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:32:47,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47 WrapperNode [2022-12-13 22:32:47,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:32:47,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:32:47,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:32:47,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:32:47,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,764 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 253 [2022-12-13 22:32:47,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:32:47,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:32:47,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:32:47,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:32:47,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,782 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:32:47,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:32:47,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:32:47,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:32:47,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (1/1) ... [2022-12-13 22:32:47,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:32:47,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:32:47,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:32:47,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe8c-d1e2-4a99-ba63-d4f38c3eef0e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:32:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:32:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:32:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:32:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:32:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 22:32:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 22:32:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 22:32:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 22:32:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 22:32:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 22:32:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 22:32:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 22:32:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:32:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 22:32:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 22:32:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-13 22:32:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-13 22:32:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 22:32:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 22:32:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:32:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:32:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:32:47,849 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 22:32:47,940 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:32:47,942 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:32:48,227 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:32:48,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:32:48,284 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:32:48,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:32:48 BoogieIcfgContainer [2022-12-13 22:32:48,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:32:48,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:32:48,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:32:48,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:32:48,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:32:47" (1/3) ... [2022-12-13 22:32:48,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df4883b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:32:48, skipping insertion in model container [2022-12-13 22:32:48,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:32:47" (2/3) ... [2022-12-13 22:32:48,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df4883b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:32:48, skipping insertion in model container [2022-12-13 22:32:48,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:32:48" (3/3) ... [2022-12-13 22:32:48,296 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-12-13 22:32:48,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:32:48,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:32:48,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:32:48,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:32:48,399 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-13 22:32:48,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2022-12-13 22:32:48,489 INFO L130 PetriNetUnfolder]: 8/207 cut-off events. [2022-12-13 22:32:48,489 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 22:32:48,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 238 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-12-13 22:32:48,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 235 transitions, 542 flow [2022-12-13 22:32:48,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 198 transitions, 444 flow [2022-12-13 22:32:48,503 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:32:48,511 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 198 transitions, 444 flow [2022-12-13 22:32:48,513 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 198 transitions, 444 flow [2022-12-13 22:32:48,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 198 transitions, 444 flow [2022-12-13 22:32:48,547 INFO L130 PetriNetUnfolder]: 8/198 cut-off events. [2022-12-13 22:32:48,547 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 22:32:48,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 198 events. 8/198 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 237 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-12-13 22:32:48,551 INFO L119 LiptonReduction]: Number of co-enabled transitions 7736 [2022-12-13 22:32:52,094 INFO L134 LiptonReduction]: Checked pairs total: 48637 [2022-12-13 22:32:52,094 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-13 22:32:52,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:32:52,109 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;@2daf48c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:32:52,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 22:32:52,119 INFO L130 PetriNetUnfolder]: 5/76 cut-off events. [2022-12-13 22:32:52,120 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 22:32:52,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:32:52,120 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:52,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:32:52,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:52,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1726065780, now seen corresponding path program 1 times [2022-12-13 22:32:52,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:52,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341263335] [2022-12-13 22:32:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:52,344 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 22:32:52,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:52,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341263335] [2022-12-13 22:32:52,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341263335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:52,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:52,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:32:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376415835] [2022-12-13 22:32:52,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:52,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:32:52,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:32:52,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:32:52,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 379 [2022-12-13 22:32:52,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 77 transitions, 202 flow. Second operand has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 0 states have call successors, (0), 0 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 22:32:52,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:32:52,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 379 [2022-12-13 22:32:52,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:32:53,489 INFO L130 PetriNetUnfolder]: 6951/11564 cut-off events. [2022-12-13 22:32:53,489 INFO L131 PetriNetUnfolder]: For 1858/1858 co-relation queries the response was YES. [2022-12-13 22:32:53,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23216 conditions, 11564 events. 6951/11564 cut-off events. For 1858/1858 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 82176 event pairs, 6399 based on Foata normal form. 68/10277 useless extension candidates. Maximal degree in co-relation 22768. Up to 9333 conditions per place. [2022-12-13 22:32:53,557 INFO L137 encePairwiseOnDemand]: 378/379 looper letters, 41 selfloop transitions, 0 changer transitions 1/76 dead transitions. [2022-12-13 22:32:53,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 76 transitions, 284 flow [2022-12-13 22:32:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:32:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 22:32:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 455 transitions. [2022-12-13 22:32:53,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.600263852242744 [2022-12-13 22:32:53,568 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 455 transitions. [2022-12-13 22:32:53,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 455 transitions. [2022-12-13 22:32:53,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:32:53,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 455 transitions. [2022-12-13 22:32:53,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 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 22:32:53,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 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 22:32:53,580 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 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 22:32:53,581 INFO L175 Difference]: Start difference. First operand has 91 places, 77 transitions, 202 flow. Second operand 2 states and 455 transitions. [2022-12-13 22:32:53,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 76 transitions, 284 flow [2022-12-13 22:32:53,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 252 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-13 22:32:53,610 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 166 flow [2022-12-13 22:32:53,612 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2022-12-13 22:32:53,614 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -11 predicate places. [2022-12-13 22:32:53,614 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 166 flow [2022-12-13 22:32:53,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 0 states have call successors, (0), 0 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 22:32:53,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:32:53,615 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:53,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:32:53,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:32:53,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:53,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2063122965, now seen corresponding path program 1 times [2022-12-13 22:32:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:53,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232661257] [2022-12-13 22:32:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:54,027 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 22:32:54,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:54,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232661257] [2022-12-13 22:32:54,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232661257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:54,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:54,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:32:54,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197635497] [2022-12-13 22:32:54,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:54,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:32:54,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:54,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:32:54,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:32:54,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 379 [2022-12-13 22:32:54,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:32:54,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:32:54,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 379 [2022-12-13 22:32:54,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:32:54,947 INFO L130 PetriNetUnfolder]: 6294/10052 cut-off events. [2022-12-13 22:32:54,947 INFO L131 PetriNetUnfolder]: For 341/341 co-relation queries the response was YES. [2022-12-13 22:32:54,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18950 conditions, 10052 events. 6294/10052 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 66318 event pairs, 4694 based on Foata normal form. 262/9401 useless extension candidates. Maximal degree in co-relation 18947. Up to 7158 conditions per place. [2022-12-13 22:32:54,996 INFO L137 encePairwiseOnDemand]: 375/379 looper letters, 78 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2022-12-13 22:32:54,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 114 transitions, 420 flow [2022-12-13 22:32:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:32:54,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:32:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 890 transitions. [2022-12-13 22:32:55,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5870712401055409 [2022-12-13 22:32:55,002 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 890 transitions. [2022-12-13 22:32:55,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 890 transitions. [2022-12-13 22:32:55,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:32:55,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 890 transitions. [2022-12-13 22:32:55,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.5) internal successors, (890), 4 states have internal predecessors, (890), 0 states have call successors, (0), 0 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 22:32:55,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:32:55,012 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:32:55,012 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 166 flow. Second operand 4 states and 890 transitions. [2022-12-13 22:32:55,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 114 transitions, 420 flow [2022-12-13 22:32:55,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 114 transitions, 420 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:32:55,015 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 176 flow [2022-12-13 22:32:55,015 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2022-12-13 22:32:55,016 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -8 predicate places. [2022-12-13 22:32:55,016 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 176 flow [2022-12-13 22:32:55,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:32:55,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:32:55,017 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:55,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:32:55,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:32:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:55,018 INFO L85 PathProgramCache]: Analyzing trace with hash 911613757, now seen corresponding path program 2 times [2022-12-13 22:32:55,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:55,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99791380] [2022-12-13 22:32:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:55,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:55,292 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 22:32:55,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:55,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99791380] [2022-12-13 22:32:55,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99791380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:55,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:55,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:32:55,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797794852] [2022-12-13 22:32:55,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:55,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:32:55,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:55,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:32:55,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:32:55,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 379 [2022-12-13 22:32:55,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:32:55,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:32:55,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 379 [2022-12-13 22:32:55,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:32:56,057 INFO L130 PetriNetUnfolder]: 5482/9103 cut-off events. [2022-12-13 22:32:56,057 INFO L131 PetriNetUnfolder]: For 978/978 co-relation queries the response was YES. [2022-12-13 22:32:56,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17317 conditions, 9103 events. 5482/9103 cut-off events. For 978/978 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 59200 event pairs, 3708 based on Foata normal form. 180/8610 useless extension candidates. Maximal degree in co-relation 17312. Up to 6258 conditions per place. [2022-12-13 22:32:56,087 INFO L137 encePairwiseOnDemand]: 375/379 looper letters, 78 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2022-12-13 22:32:56,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 114 transitions, 444 flow [2022-12-13 22:32:56,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:32:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:32:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 890 transitions. [2022-12-13 22:32:56,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5870712401055409 [2022-12-13 22:32:56,089 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 890 transitions. [2022-12-13 22:32:56,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 890 transitions. [2022-12-13 22:32:56,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:32:56,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 890 transitions. [2022-12-13 22:32:56,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.5) internal successors, (890), 4 states have internal predecessors, (890), 0 states have call successors, (0), 0 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 22:32:56,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:32:56,093 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:32:56,093 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 176 flow. Second operand 4 states and 890 transitions. [2022-12-13 22:32:56,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 114 transitions, 444 flow [2022-12-13 22:32:56,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 114 transitions, 430 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:32:56,096 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 180 flow [2022-12-13 22:32:56,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2022-12-13 22:32:56,096 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -7 predicate places. [2022-12-13 22:32:56,096 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 180 flow [2022-12-13 22:32:56,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:32:56,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:32:56,097 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:56,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:32:56,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:32:56,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash -28935595, now seen corresponding path program 3 times [2022-12-13 22:32:56,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150092149] [2022-12-13 22:32:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:56,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:56,299 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 22:32:56,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:56,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150092149] [2022-12-13 22:32:56,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150092149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:56,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:56,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:32:56,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541136521] [2022-12-13 22:32:56,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:56,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:32:56,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:56,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:32:56,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:32:56,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 379 [2022-12-13 22:32:56,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:32:56,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:32:56,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 379 [2022-12-13 22:32:56,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:32:57,141 INFO L130 PetriNetUnfolder]: 5864/9796 cut-off events. [2022-12-13 22:32:57,141 INFO L131 PetriNetUnfolder]: For 1441/1445 co-relation queries the response was YES. [2022-12-13 22:32:57,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19077 conditions, 9796 events. 5864/9796 cut-off events. For 1441/1445 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 65936 event pairs, 3764 based on Foata normal form. 62/8974 useless extension candidates. Maximal degree in co-relation 19071. Up to 6760 conditions per place. [2022-12-13 22:32:57,170 INFO L137 encePairwiseOnDemand]: 375/379 looper letters, 80 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2022-12-13 22:32:57,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 116 transitions, 457 flow [2022-12-13 22:32:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:32:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:32:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 892 transitions. [2022-12-13 22:32:57,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5883905013192612 [2022-12-13 22:32:57,172 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 892 transitions. [2022-12-13 22:32:57,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 892 transitions. [2022-12-13 22:32:57,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:32:57,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 892 transitions. [2022-12-13 22:32:57,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 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 22:32:57,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:32:57,176 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:32:57,176 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 180 flow. Second operand 4 states and 892 transitions. [2022-12-13 22:32:57,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 116 transitions, 457 flow [2022-12-13 22:32:57,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 116 transitions, 443 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:32:57,178 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 184 flow [2022-12-13 22:32:57,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2022-12-13 22:32:57,179 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -6 predicate places. [2022-12-13 22:32:57,179 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 184 flow [2022-12-13 22:32:57,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:32:57,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:32:57,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:57,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:32:57,180 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:32:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:57,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1469833465, now seen corresponding path program 4 times [2022-12-13 22:32:57,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:57,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608542322] [2022-12-13 22:32:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:57,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,925 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 22:32:57,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608542322] [2022-12-13 22:32:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608542322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:57,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:57,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 22:32:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546671717] [2022-12-13 22:32:57,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 22:32:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 22:32:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:32:58,393 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 379 [2022-12-13 22:32:58,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 184 flow. Second operand has 17 states, 17 states have (on average 177.88235294117646) internal successors, (3024), 17 states have internal predecessors, (3024), 0 states have call successors, (0), 0 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 22:32:58,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:32:58,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 379 [2022-12-13 22:32:58,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:33:03,812 INFO L130 PetriNetUnfolder]: 45959/63664 cut-off events. [2022-12-13 22:33:03,812 INFO L131 PetriNetUnfolder]: For 7637/7637 co-relation queries the response was YES. [2022-12-13 22:33:03,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131493 conditions, 63664 events. 45959/63664 cut-off events. For 7637/7637 co-relation queries the response was YES. Maximal size of possible extension queue 1157. Compared 371227 event pairs, 12020 based on Foata normal form. 1/61914 useless extension candidates. Maximal degree in co-relation 131486. Up to 44446 conditions per place. [2022-12-13 22:33:04,029 INFO L137 encePairwiseOnDemand]: 361/379 looper letters, 285 selfloop transitions, 83 changer transitions 32/422 dead transitions. [2022-12-13 22:33:04,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 422 transitions, 1810 flow [2022-12-13 22:33:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 22:33:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-13 22:33:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 5126 transitions. [2022-12-13 22:33:04,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5009283690022476 [2022-12-13 22:33:04,038 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 5126 transitions. [2022-12-13 22:33:04,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 5126 transitions. [2022-12-13 22:33:04,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:33:04,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 5126 transitions. [2022-12-13 22:33:04,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 189.85185185185185) internal successors, (5126), 27 states have internal predecessors, (5126), 0 states have call successors, (0), 0 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 22:33:04,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 379.0) internal successors, (10612), 28 states have internal predecessors, (10612), 0 states have call successors, (0), 0 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 22:33:04,057 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 379.0) internal successors, (10612), 28 states have internal predecessors, (10612), 0 states have call successors, (0), 0 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 22:33:04,058 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 184 flow. Second operand 27 states and 5126 transitions. [2022-12-13 22:33:04,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 422 transitions, 1810 flow [2022-12-13 22:33:04,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 422 transitions, 1800 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:33:04,068 INFO L231 Difference]: Finished difference. Result has 122 places, 157 transitions, 631 flow [2022-12-13 22:33:04,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=631, PETRI_PLACES=122, PETRI_TRANSITIONS=157} [2022-12-13 22:33:04,069 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 31 predicate places. [2022-12-13 22:33:04,069 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 157 transitions, 631 flow [2022-12-13 22:33:04,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 177.88235294117646) internal successors, (3024), 17 states have internal predecessors, (3024), 0 states have call successors, (0), 0 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 22:33:04,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:33:04,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:04,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:33:04,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:33:04,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2031497205, now seen corresponding path program 5 times [2022-12-13 22:33:04,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:04,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338121395] [2022-12-13 22:33:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:04,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:04,225 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 22:33:04,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:04,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338121395] [2022-12-13 22:33:04,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338121395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:04,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:04,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:33:04,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254498382] [2022-12-13 22:33:04,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:04,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:33:04,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:33:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:33:04,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 379 [2022-12-13 22:33:04,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 157 transitions, 631 flow. Second operand has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:33:04,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:33:04,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 379 [2022-12-13 22:33:04,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:33:06,033 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([716] L88-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_#res#1.offset_9| 0) (= v_~x_0~0_24 (+ v_~temp_5~0_11 1)) (= |v_thread3Thread1of1ForFork3_#res#1.base_9| 0)) InVars {~temp_5~0=v_~temp_5~0_11} OutVars{thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_9|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_9|, ~x_0~0=v_~x_0~0_24, ~temp_5~0=v_~temp_5~0_11} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~x_0~0][75], [Black: 255#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 261#(= (* 256 (div ~f2_9~0 256)) ~f2_9~0), Black: 288#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~temp_4~0) (<= ~x_6~0 ~x_0~0) (<= ~temp_4~0 ~x_6~0)), Black: 298#(and (<= ~x_0~0 (+ ~x_6~0 2)) (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 267#(= ~f1_2~0 (* (div ~f1_2~0 256) 256)), Black: 304#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), Black: 312#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), 119#L103-2true, Black: 300#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 290#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), 225#L193-4true, Black: 275#(and (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (= ~temp_5~0 0)), Black: 306#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 310#(and (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 324#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1))), Black: 294#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 296#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 318#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 67#L165-4true, Black: 272#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~x_0~0)), 270#true, 14#thread5EXITtrue, 171#L151true, 112#thread3EXITtrue, 346#true, 249#true]) [2022-12-13 22:33:06,033 INFO L383 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2022-12-13 22:33:06,033 INFO L386 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2022-12-13 22:33:06,033 INFO L386 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2022-12-13 22:33:06,033 INFO L386 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2022-12-13 22:33:06,060 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([716] L88-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_#res#1.offset_9| 0) (= v_~x_0~0_24 (+ v_~temp_5~0_11 1)) (= |v_thread3Thread1of1ForFork3_#res#1.base_9| 0)) InVars {~temp_5~0=v_~temp_5~0_11} OutVars{thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_9|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_9|, ~x_0~0=v_~x_0~0_24, ~temp_5~0=v_~temp_5~0_11} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~x_0~0][75], [Black: 255#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 261#(= (* 256 (div ~f2_9~0 256)) ~f2_9~0), Black: 288#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~temp_4~0) (<= ~x_6~0 ~x_0~0) (<= ~temp_4~0 ~x_6~0)), Black: 298#(and (<= ~x_0~0 (+ ~x_6~0 2)) (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 267#(= ~f1_2~0 (* (div ~f1_2~0 256) 256)), Black: 304#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), Black: 312#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), 119#L103-2true, Black: 300#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 290#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 275#(and (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (= ~temp_5~0 0)), Black: 306#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 310#(and (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 324#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1))), Black: 294#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 296#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 318#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 67#L165-4true, 7#L194-1true, Black: 272#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~x_0~0)), 270#true, 14#thread5EXITtrue, 171#L151true, 112#thread3EXITtrue, 346#true, 249#true]) [2022-12-13 22:33:06,061 INFO L383 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,061 INFO L386 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,061 INFO L386 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,061 INFO L386 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,077 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([716] L88-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_#res#1.offset_9| 0) (= v_~x_0~0_24 (+ v_~temp_5~0_11 1)) (= |v_thread3Thread1of1ForFork3_#res#1.base_9| 0)) InVars {~temp_5~0=v_~temp_5~0_11} OutVars{thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_9|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_9|, ~x_0~0=v_~x_0~0_24, ~temp_5~0=v_~temp_5~0_11} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~x_0~0][75], [Black: 255#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 261#(= (* 256 (div ~f2_9~0 256)) ~f2_9~0), Black: 288#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~temp_4~0) (<= ~x_6~0 ~x_0~0) (<= ~temp_4~0 ~x_6~0)), Black: 298#(and (<= ~x_0~0 (+ ~x_6~0 2)) (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 267#(= ~f1_2~0 (* (div ~f1_2~0 256) 256)), Black: 304#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), Black: 312#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), 119#L103-2true, Black: 300#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 290#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), 225#L193-4true, Black: 275#(and (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (= ~temp_5~0 0)), Black: 306#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 310#(and (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 324#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1))), Black: 294#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 296#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 318#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 272#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~x_0~0)), 270#true, 14#thread5EXITtrue, 171#L151true, 27#L166-1true, 112#thread3EXITtrue, 346#true, 249#true]) [2022-12-13 22:33:06,078 INFO L383 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,078 INFO L386 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,078 INFO L386 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,078 INFO L386 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2022-12-13 22:33:06,099 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([716] L88-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_#res#1.offset_9| 0) (= v_~x_0~0_24 (+ v_~temp_5~0_11 1)) (= |v_thread3Thread1of1ForFork3_#res#1.base_9| 0)) InVars {~temp_5~0=v_~temp_5~0_11} OutVars{thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_9|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_9|, ~x_0~0=v_~x_0~0_24, ~temp_5~0=v_~temp_5~0_11} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~x_0~0][75], [Black: 255#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 261#(= (* 256 (div ~f2_9~0 256)) ~f2_9~0), Black: 288#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~temp_4~0) (<= ~x_6~0 ~x_0~0) (<= ~temp_4~0 ~x_6~0)), Black: 298#(and (<= ~x_0~0 (+ ~x_6~0 2)) (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 267#(= ~f1_2~0 (* (div ~f1_2~0 256) 256)), Black: 304#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 119#L103-2true, Black: 312#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 300#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 290#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 275#(and (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (= ~temp_5~0 0)), Black: 306#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 310#(and (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 324#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1))), Black: 294#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 296#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 318#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 7#L194-1true, Black: 272#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~x_0~0)), 270#true, 14#thread5EXITtrue, 171#L151true, 27#L166-1true, 112#thread3EXITtrue, 346#true, 249#true]) [2022-12-13 22:33:06,099 INFO L383 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,099 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,099 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,099 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,121 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([716] L88-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_#res#1.offset_9| 0) (= v_~x_0~0_24 (+ v_~temp_5~0_11 1)) (= |v_thread3Thread1of1ForFork3_#res#1.base_9| 0)) InVars {~temp_5~0=v_~temp_5~0_11} OutVars{thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_9|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_9|, ~x_0~0=v_~x_0~0_24, ~temp_5~0=v_~temp_5~0_11} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~x_0~0][75], [Black: 255#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 261#(= (* 256 (div ~f2_9~0 256)) ~f2_9~0), Black: 288#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~temp_4~0) (<= ~x_6~0 ~x_0~0) (<= ~temp_4~0 ~x_6~0)), Black: 298#(and (<= ~x_0~0 (+ ~x_6~0 2)) (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 267#(= ~f1_2~0 (* (div ~f1_2~0 256) 256)), Black: 304#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), Black: 312#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), 119#L103-2true, Black: 300#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 290#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), 225#L193-4true, Black: 275#(and (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (= ~temp_5~0 0)), Black: 306#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 310#(and (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 324#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1))), Black: 294#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 296#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 318#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 272#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~x_0~0)), 270#true, 173#L166-2true, 171#L151true, 112#thread3EXITtrue, 346#true, 249#true]) [2022-12-13 22:33:06,121 INFO L383 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,121 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,121 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,121 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-13 22:33:06,141 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([716] L88-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_#res#1.offset_9| 0) (= v_~x_0~0_24 (+ v_~temp_5~0_11 1)) (= |v_thread3Thread1of1ForFork3_#res#1.base_9| 0)) InVars {~temp_5~0=v_~temp_5~0_11} OutVars{thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_9|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_9|, ~x_0~0=v_~x_0~0_24, ~temp_5~0=v_~temp_5~0_11} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~x_0~0][75], [Black: 255#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 261#(= (* 256 (div ~f2_9~0 256)) ~f2_9~0), Black: 288#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~temp_4~0) (<= ~x_6~0 ~x_0~0) (<= ~temp_4~0 ~x_6~0)), Black: 298#(and (<= ~x_0~0 (+ ~x_6~0 2)) (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 267#(= ~f1_2~0 (* (div ~f1_2~0 256) 256)), Black: 304#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 119#L103-2true, Black: 312#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 300#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 290#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 275#(and (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (= ~temp_5~0 0)), Black: 306#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), Black: 310#(and (<= ~y_7~0 ~y_1~0) (<= ~x_0~0 (+ ~temp_11~0 1)) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (< ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~temp_11~0 1) ~x_0~0)), Black: 324#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1))), Black: 294#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (= ~temp_5~0 0)), Black: 296#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), Black: 318#(and (<= ~temp_10~0 ~y_1~0) (<= ~y_7~0 (+ ~y_1~0 1)) (<= (+ ~y_1~0 1) ~y_7~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~y_1~0 ~temp_10~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 7#L194-1true, Black: 272#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= ~x_6~0 ~x_0~0)), 270#true, 173#L166-2true, 171#L151true, 112#thread3EXITtrue, 346#true, 249#true]) [2022-12-13 22:33:06,142 INFO L383 tUnfolder$Statistics]: this new event has 54 ancestors and is cut-off event [2022-12-13 22:33:06,142 INFO L386 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-12-13 22:33:06,142 INFO L386 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-12-13 22:33:06,142 INFO L386 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-12-13 22:33:06,325 INFO L130 PetriNetUnfolder]: 14279/22910 cut-off events. [2022-12-13 22:33:06,325 INFO L131 PetriNetUnfolder]: For 8498/9225 co-relation queries the response was YES. [2022-12-13 22:33:06,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53297 conditions, 22910 events. 14279/22910 cut-off events. For 8498/9225 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 163939 event pairs, 7000 based on Foata normal form. 374/20690 useless extension candidates. Maximal degree in co-relation 53276. Up to 14492 conditions per place. [2022-12-13 22:33:06,477 INFO L137 encePairwiseOnDemand]: 375/379 looper letters, 118 selfloop transitions, 3 changer transitions 0/201 dead transitions. [2022-12-13 22:33:06,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 201 transitions, 1011 flow [2022-12-13 22:33:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:33:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:33:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 892 transitions. [2022-12-13 22:33:06,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5883905013192612 [2022-12-13 22:33:06,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 892 transitions. [2022-12-13 22:33:06,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 892 transitions. [2022-12-13 22:33:06,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:33:06,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 892 transitions. [2022-12-13 22:33:06,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 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 22:33:06,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:33:06,484 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 379.0) internal successors, (1895), 5 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 22:33:06,484 INFO L175 Difference]: Start difference. First operand has 122 places, 157 transitions, 631 flow. Second operand 4 states and 892 transitions. [2022-12-13 22:33:06,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 201 transitions, 1011 flow [2022-12-13 22:33:06,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 201 transitions, 1005 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 22:33:06,502 INFO L231 Difference]: Finished difference. Result has 123 places, 149 transitions, 598 flow [2022-12-13 22:33:06,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=598, PETRI_PLACES=123, PETRI_TRANSITIONS=149} [2022-12-13 22:33:06,502 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2022-12-13 22:33:06,503 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 149 transitions, 598 flow [2022-12-13 22:33:06,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 22:33:06,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:33:06,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:06,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:33:06,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:33:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash 885019412, now seen corresponding path program 1 times [2022-12-13 22:33:06,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:06,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644438158] [2022-12-13 22:33:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:06,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:07,340 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 22:33:07,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:07,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644438158] [2022-12-13 22:33:07,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644438158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:07,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:07,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-13 22:33:07,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338457086] [2022-12-13 22:33:07,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:07,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 22:33:07,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:07,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 22:33:07,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-13 22:33:07,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 379 [2022-12-13 22:33:07,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 149 transitions, 598 flow. Second operand has 19 states, 19 states have (on average 177.57894736842104) internal successors, (3374), 19 states have internal predecessors, (3374), 0 states have call successors, (0), 0 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 22:33:07,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:33:07,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 379 [2022-12-13 22:33:07,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:33:13,667 INFO L130 PetriNetUnfolder]: 37581/52914 cut-off events. [2022-12-13 22:33:13,667 INFO L131 PetriNetUnfolder]: For 36885/36885 co-relation queries the response was YES. [2022-12-13 22:33:13,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144151 conditions, 52914 events. 37581/52914 cut-off events. For 36885/36885 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 309006 event pairs, 10678 based on Foata normal form. 1/51050 useless extension candidates. Maximal degree in co-relation 144129. Up to 38440 conditions per place. [2022-12-13 22:33:13,959 INFO L137 encePairwiseOnDemand]: 361/379 looper letters, 330 selfloop transitions, 69 changer transitions 34/455 dead transitions. [2022-12-13 22:33:13,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 455 transitions, 2419 flow [2022-12-13 22:33:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 22:33:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-13 22:33:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4598 transitions. [2022-12-13 22:33:13,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5054969217238346 [2022-12-13 22:33:14,089 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4598 transitions. [2022-12-13 22:33:14,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4598 transitions. [2022-12-13 22:33:14,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:33:14,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4598 transitions. [2022-12-13 22:33:14,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 191.58333333333334) internal successors, (4598), 24 states have internal predecessors, (4598), 0 states have call successors, (0), 0 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 22:33:14,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 379.0) internal successors, (9475), 25 states have internal predecessors, (9475), 0 states have call successors, (0), 0 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 22:33:14,106 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 379.0) internal successors, (9475), 25 states have internal predecessors, (9475), 0 states have call successors, (0), 0 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 22:33:14,106 INFO L175 Difference]: Start difference. First operand has 123 places, 149 transitions, 598 flow. Second operand 24 states and 4598 transitions. [2022-12-13 22:33:14,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 455 transitions, 2419 flow [2022-12-13 22:33:14,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 455 transitions, 2373 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:33:14,317 INFO L231 Difference]: Finished difference. Result has 150 places, 172 transitions, 886 flow [2022-12-13 22:33:14,317 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=886, PETRI_PLACES=150, PETRI_TRANSITIONS=172} [2022-12-13 22:33:14,317 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 59 predicate places. [2022-12-13 22:33:14,318 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 172 transitions, 886 flow [2022-12-13 22:33:14,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 177.57894736842104) internal successors, (3374), 19 states have internal predecessors, (3374), 0 states have call successors, (0), 0 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 22:33:14,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:33:14,319 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 22:33:14,320 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:33:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -858215534, now seen corresponding path program 1 times [2022-12-13 22:33:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544091028] [2022-12-13 22:33:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,113 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 22:33:15,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:15,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544091028] [2022-12-13 22:33:15,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544091028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:15,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:15,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-13 22:33:15,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865514356] [2022-12-13 22:33:15,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:15,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 22:33:15,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:15,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 22:33:15,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2022-12-13 22:33:15,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 379 [2022-12-13 22:33:15,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 172 transitions, 886 flow. Second operand has 21 states, 21 states have (on average 176.33333333333334) internal successors, (3703), 21 states have internal predecessors, (3703), 0 states have call successors, (0), 0 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 22:33:15,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:33:15,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 379 [2022-12-13 22:33:15,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:33:29,251 INFO L130 PetriNetUnfolder]: 65225/89991 cut-off events. [2022-12-13 22:33:29,251 INFO L131 PetriNetUnfolder]: For 113953/114003 co-relation queries the response was YES. [2022-12-13 22:33:29,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272721 conditions, 89991 events. 65225/89991 cut-off events. For 113953/114003 co-relation queries the response was YES. Maximal size of possible extension queue 1621. Compared 544240 event pairs, 16796 based on Foata normal form. 51/87217 useless extension candidates. Maximal degree in co-relation 272692. Up to 51938 conditions per place. [2022-12-13 22:33:29,750 INFO L137 encePairwiseOnDemand]: 359/379 looper letters, 956 selfloop transitions, 411 changer transitions 34/1423 dead transitions. [2022-12-13 22:33:29,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 1423 transitions, 8718 flow [2022-12-13 22:33:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-12-13 22:33:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2022-12-13 22:33:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 20754 transitions. [2022-12-13 22:33:29,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48892762909913307 [2022-12-13 22:33:29,769 INFO L72 ComplementDD]: Start complementDD. Operand 112 states and 20754 transitions. [2022-12-13 22:33:29,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 20754 transitions. [2022-12-13 22:33:29,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:33:29,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 112 states and 20754 transitions. [2022-12-13 22:33:29,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 113 states, 112 states have (on average 185.30357142857142) internal successors, (20754), 112 states have internal predecessors, (20754), 0 states have call successors, (0), 0 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 22:33:29,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 113 states, 113 states have (on average 379.0) internal successors, (42827), 113 states have internal predecessors, (42827), 0 states have call successors, (0), 0 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 22:33:29,820 INFO L81 ComplementDD]: Finished complementDD. Result has 113 states, 113 states have (on average 379.0) internal successors, (42827), 113 states have internal predecessors, (42827), 0 states have call successors, (0), 0 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 22:33:29,820 INFO L175 Difference]: Start difference. First operand has 150 places, 172 transitions, 886 flow. Second operand 112 states and 20754 transitions. [2022-12-13 22:33:29,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 1423 transitions, 8718 flow [2022-12-13 22:33:30,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 1423 transitions, 8515 flow, removed 26 selfloop flow, removed 11 redundant places. [2022-12-13 22:33:30,837 INFO L231 Difference]: Finished difference. Result has 270 places, 620 transitions, 4686 flow [2022-12-13 22:33:30,837 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=112, PETRI_FLOW=4686, PETRI_PLACES=270, PETRI_TRANSITIONS=620} [2022-12-13 22:33:30,837 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 179 predicate places. [2022-12-13 22:33:30,838 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 620 transitions, 4686 flow [2022-12-13 22:33:30,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 176.33333333333334) internal successors, (3703), 21 states have internal predecessors, (3703), 0 states have call successors, (0), 0 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 22:33:30,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:33:30,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 22:33:30,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:33:30,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:30,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1866566280, now seen corresponding path program 2 times [2022-12-13 22:33:30,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:30,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399941236] [2022-12-13 22:33:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:30,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:31,555 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 22:33:31,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:31,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399941236] [2022-12-13 22:33:31,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399941236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:31,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:31,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-13 22:33:31,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674996212] [2022-12-13 22:33:31,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:31,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 22:33:31,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:31,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 22:33:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-12-13 22:33:32,074 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 379 [2022-12-13 22:33:32,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 620 transitions, 4686 flow. Second operand has 21 states, 21 states have (on average 176.33333333333334) internal successors, (3703), 21 states have internal predecessors, (3703), 0 states have call successors, (0), 0 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 22:33:32,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:33:32,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 379 [2022-12-13 22:33:32,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:33:53,058 INFO L130 PetriNetUnfolder]: 92703/127334 cut-off events. [2022-12-13 22:33:53,058 INFO L131 PetriNetUnfolder]: For 256293/256395 co-relation queries the response was YES. [2022-12-13 22:33:53,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449008 conditions, 127334 events. 92703/127334 cut-off events. For 256293/256395 co-relation queries the response was YES. Maximal size of possible extension queue 2295. Compared 796065 event pairs, 17976 based on Foata normal form. 47/123672 useless extension candidates. Maximal degree in co-relation 448957. Up to 83286 conditions per place. [2022-12-13 22:33:54,245 INFO L137 encePairwiseOnDemand]: 359/379 looper letters, 1282 selfloop transitions, 631 changer transitions 34/1969 dead transitions. [2022-12-13 22:33:54,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1969 transitions, 15498 flow [2022-12-13 22:33:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-12-13 22:33:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2022-12-13 22:33:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 20605 transitions. [2022-12-13 22:33:54,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4897905821388671 [2022-12-13 22:33:54,272 INFO L72 ComplementDD]: Start complementDD. Operand 111 states and 20605 transitions. [2022-12-13 22:33:54,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 20605 transitions. [2022-12-13 22:33:54,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:33:54,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 111 states and 20605 transitions. [2022-12-13 22:33:54,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 112 states, 111 states have (on average 185.63063063063063) internal successors, (20605), 111 states have internal predecessors, (20605), 0 states have call successors, (0), 0 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 22:33:54,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 112 states, 112 states have (on average 379.0) internal successors, (42448), 112 states have internal predecessors, (42448), 0 states have call successors, (0), 0 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 22:33:54,334 INFO L81 ComplementDD]: Finished complementDD. Result has 112 states, 112 states have (on average 379.0) internal successors, (42448), 112 states have internal predecessors, (42448), 0 states have call successors, (0), 0 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 22:33:54,334 INFO L175 Difference]: Start difference. First operand has 270 places, 620 transitions, 4686 flow. Second operand 111 states and 20605 transitions. [2022-12-13 22:33:54,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1969 transitions, 15498 flow [2022-12-13 22:34:15,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1969 transitions, 13638 flow, removed 904 selfloop flow, removed 2 redundant places. [2022-12-13 22:34:15,406 INFO L231 Difference]: Finished difference. Result has 411 places, 1132 transitions, 9230 flow [2022-12-13 22:34:15,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=3210, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=111, PETRI_FLOW=9230, PETRI_PLACES=411, PETRI_TRANSITIONS=1132} [2022-12-13 22:34:15,407 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 320 predicate places. [2022-12-13 22:34:15,407 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 1132 transitions, 9230 flow [2022-12-13 22:34:15,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 176.33333333333334) internal successors, (3703), 21 states have internal predecessors, (3703), 0 states have call successors, (0), 0 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 22:34:15,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:34:15,407 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:34:15,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 22:34:15,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:34:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:34:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash 103295633, now seen corresponding path program 6 times [2022-12-13 22:34:15,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:34:15,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058348329] [2022-12-13 22:34:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:34:15,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:34:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:16,177 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 22:34:16,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:34:16,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058348329] [2022-12-13 22:34:16,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058348329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:34:16,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:34:16,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-13 22:34:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061658572] [2022-12-13 22:34:16,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:34:16,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 22:34:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:34:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 22:34:16,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-12-13 22:34:16,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 379 [2022-12-13 22:34:16,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 1132 transitions, 9230 flow. Second operand has 21 states, 21 states have (on average 176.33333333333334) internal successors, (3703), 21 states have internal predecessors, (3703), 0 states have call successors, (0), 0 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 22:34:16,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:34:16,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 379 [2022-12-13 22:34:16,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:34:49,751 INFO L130 PetriNetUnfolder]: 122553/167711 cut-off events. [2022-12-13 22:34:49,752 INFO L131 PetriNetUnfolder]: For 641378/641520 co-relation queries the response was YES. [2022-12-13 22:34:51,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642894 conditions, 167711 events. 122553/167711 cut-off events. For 641378/641520 co-relation queries the response was YES. Maximal size of possible extension queue 3520. Compared 1084763 event pairs, 16536 based on Foata normal form. 43/162899 useless extension candidates. Maximal degree in co-relation 642809. Up to 118522 conditions per place. [2022-12-13 22:34:51,936 INFO L137 encePairwiseOnDemand]: 359/379 looper letters, 1716 selfloop transitions, 569 changer transitions 33/2340 dead transitions. [2022-12-13 22:34:51,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 2340 transitions, 21230 flow [2022-12-13 22:34:51,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 22:34:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2022-12-13 22:34:51,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 17866 transitions. [2022-12-13 22:34:51,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49104001759014954 [2022-12-13 22:34:51,951 INFO L72 ComplementDD]: Start complementDD. Operand 96 states and 17866 transitions. [2022-12-13 22:34:51,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 17866 transitions. [2022-12-13 22:34:51,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:34:51,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 96 states and 17866 transitions. [2022-12-13 22:34:51,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 97 states, 96 states have (on average 186.10416666666666) internal successors, (17866), 96 states have internal predecessors, (17866), 0 states have call successors, (0), 0 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 22:34:52,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 97 states, 97 states have (on average 379.0) internal successors, (36763), 97 states have internal predecessors, (36763), 0 states have call successors, (0), 0 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 22:34:52,095 INFO L81 ComplementDD]: Finished complementDD. Result has 97 states, 97 states have (on average 379.0) internal successors, (36763), 97 states have internal predecessors, (36763), 0 states have call successors, (0), 0 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 22:34:52,095 INFO L175 Difference]: Start difference. First operand has 411 places, 1132 transitions, 9230 flow. Second operand 96 states and 17866 transitions. [2022-12-13 22:34:52,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 2340 transitions, 21230 flow [2022-12-13 22:35:29,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 2340 transitions, 18922 flow, removed 1154 selfloop flow, removed 1 redundant places. [2022-12-13 22:35:29,561 INFO L231 Difference]: Finished difference. Result has 525 places, 1594 transitions, 13613 flow [2022-12-13 22:35:29,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=7120, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=96, PETRI_FLOW=13613, PETRI_PLACES=525, PETRI_TRANSITIONS=1594} [2022-12-13 22:35:29,562 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 434 predicate places. [2022-12-13 22:35:29,562 INFO L495 AbstractCegarLoop]: Abstraction has has 525 places, 1594 transitions, 13613 flow [2022-12-13 22:35:29,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 176.33333333333334) internal successors, (3703), 21 states have internal predecessors, (3703), 0 states have call successors, (0), 0 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 22:35:29,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:35:29,562 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:35:29,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 22:35:29,563 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:35:29,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:29,563 INFO L85 PathProgramCache]: Analyzing trace with hash 264283650, now seen corresponding path program 1 times [2022-12-13 22:35:29,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:29,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882228266] [2022-12-13 22:35:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:29,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:30,374 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 22:35:30,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:35:30,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882228266] [2022-12-13 22:35:30,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882228266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:35:30,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:35:30,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-13 22:35:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13935926] [2022-12-13 22:35:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:35:30,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 22:35:30,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:35:30,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 22:35:30,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-12-13 22:35:31,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 379 [2022-12-13 22:35:31,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 1594 transitions, 13613 flow. Second operand has 23 states, 23 states have (on average 175.1304347826087) internal successors, (4028), 23 states have internal predecessors, (4028), 0 states have call successors, (0), 0 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 22:35:31,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:35:31,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 379 [2022-12-13 22:35:31,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:36:19,551 INFO L130 PetriNetUnfolder]: 148303/201774 cut-off events. [2022-12-13 22:36:19,551 INFO L131 PetriNetUnfolder]: For 944896/944998 co-relation queries the response was YES. [2022-12-13 22:36:21,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813928 conditions, 201774 events. 148303/201774 cut-off events. For 944896/944998 co-relation queries the response was YES. Maximal size of possible extension queue 4522. Compared 1315475 event pairs, 41038 based on Foata normal form. 31/196168 useless extension candidates. Maximal degree in co-relation 813821. Up to 156830 conditions per place. [2022-12-13 22:36:22,576 INFO L137 encePairwiseOnDemand]: 359/379 looper letters, 2066 selfloop transitions, 698 changer transitions 30/2816 dead transitions. [2022-12-13 22:36:22,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 2816 transitions, 27883 flow [2022-12-13 22:36:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-12-13 22:36:22,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2022-12-13 22:36:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 17301 transitions. [2022-12-13 22:36:22,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48562847358670636 [2022-12-13 22:36:22,588 INFO L72 ComplementDD]: Start complementDD. Operand 94 states and 17301 transitions. [2022-12-13 22:36:22,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 17301 transitions. [2022-12-13 22:36:22,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:36:22,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 94 states and 17301 transitions. [2022-12-13 22:36:22,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 95 states, 94 states have (on average 184.0531914893617) internal successors, (17301), 94 states have internal predecessors, (17301), 0 states have call successors, (0), 0 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 22:36:22,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 95 states, 95 states have (on average 379.0) internal successors, (36005), 95 states have internal predecessors, (36005), 0 states have call successors, (0), 0 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 22:36:22,625 INFO L81 ComplementDD]: Finished complementDD. Result has 95 states, 95 states have (on average 379.0) internal successors, (36005), 95 states have internal predecessors, (36005), 0 states have call successors, (0), 0 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 22:36:22,625 INFO L175 Difference]: Start difference. First operand has 525 places, 1594 transitions, 13613 flow. Second operand 94 states and 17301 transitions. [2022-12-13 22:36:22,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 2816 transitions, 27883 flow [2022-12-13 22:37:07,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 2816 transitions, 24748 flow, removed 1474 selfloop flow, removed 5 redundant places. [2022-12-13 22:37:07,554 INFO L231 Difference]: Finished difference. Result has 646 places, 2124 transitions, 19177 flow [2022-12-13 22:37:07,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=10802, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=94, PETRI_FLOW=19177, PETRI_PLACES=646, PETRI_TRANSITIONS=2124} [2022-12-13 22:37:07,555 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 555 predicate places. [2022-12-13 22:37:07,555 INFO L495 AbstractCegarLoop]: Abstraction has has 646 places, 2124 transitions, 19177 flow [2022-12-13 22:37:07,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 175.1304347826087) internal successors, (4028), 23 states have internal predecessors, (4028), 0 states have call successors, (0), 0 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 22:37:07,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:37:07,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:37:07,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 22:37:07,556 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:37:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:37:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1642492112, now seen corresponding path program 2 times [2022-12-13 22:37:07,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:37:07,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709845429] [2022-12-13 22:37:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:37:07,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:37:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,395 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 22:37:08,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:37:08,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709845429] [2022-12-13 22:37:08,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709845429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:37:08,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:37:08,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-13 22:37:08,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168269102] [2022-12-13 22:37:08,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:37:08,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 22:37:08,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:37:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 22:37:08,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2022-12-13 22:37:09,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 379 [2022-12-13 22:37:09,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 2124 transitions, 19177 flow. Second operand has 23 states, 23 states have (on average 175.1304347826087) internal successors, (4028), 23 states have internal predecessors, (4028), 0 states have call successors, (0), 0 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 22:37:09,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:37:09,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 379 [2022-12-13 22:37:09,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:38:21,399 INFO L130 PetriNetUnfolder]: 172097/234468 cut-off events. [2022-12-13 22:38:21,399 INFO L131 PetriNetUnfolder]: For 1777947/1778125 co-relation queries the response was YES. [2022-12-13 22:38:25,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1013426 conditions, 234468 events. 172097/234468 cut-off events. For 1777947/1778125 co-relation queries the response was YES. Maximal size of possible extension queue 5238. Compared 1564665 event pairs, 44498 based on Foata normal form. 47/228032 useless extension candidates. Maximal degree in co-relation 1013284. Up to 188460 conditions per place. [2022-12-13 22:38:25,934 INFO L137 encePairwiseOnDemand]: 357/379 looper letters, 2688 selfloop transitions, 579 changer transitions 33/3322 dead transitions. [2022-12-13 22:38:25,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 3322 transitions, 36012 flow [2022-12-13 22:38:25,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-12-13 22:38:25,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2022-12-13 22:38:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 17241 transitions. [2022-12-13 22:38:25,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48914801259681673 [2022-12-13 22:38:25,945 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 17241 transitions. [2022-12-13 22:38:25,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 17241 transitions. [2022-12-13 22:38:25,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:38:25,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 17241 transitions. [2022-12-13 22:38:25,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 185.38709677419354) internal successors, (17241), 93 states have internal predecessors, (17241), 0 states have call successors, (0), 0 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 22:38:25,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 379.0) internal successors, (35626), 94 states have internal predecessors, (35626), 0 states have call successors, (0), 0 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 22:38:25,979 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 379.0) internal successors, (35626), 94 states have internal predecessors, (35626), 0 states have call successors, (0), 0 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 22:38:25,979 INFO L175 Difference]: Start difference. First operand has 646 places, 2124 transitions, 19177 flow. Second operand 93 states and 17241 transitions. [2022-12-13 22:38:25,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 737 places, 3322 transitions, 36012 flow [2022-12-13 22:39:31,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 3322 transitions, 32945 flow, removed 1516 selfloop flow, removed 3 redundant places. [2022-12-13 22:39:31,549 INFO L231 Difference]: Finished difference. Result has 759 places, 2556 transitions, 25273 flow [2022-12-13 22:39:31,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=16632, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1873, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=25273, PETRI_PLACES=759, PETRI_TRANSITIONS=2556} [2022-12-13 22:39:31,551 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 668 predicate places. [2022-12-13 22:39:31,551 INFO L495 AbstractCegarLoop]: Abstraction has has 759 places, 2556 transitions, 25273 flow [2022-12-13 22:39:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 175.1304347826087) internal successors, (4028), 23 states have internal predecessors, (4028), 0 states have call successors, (0), 0 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 22:39:31,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:39:31,551 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:39:31,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 22:39:31,552 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-13 22:39:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:39:31,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1617213072, now seen corresponding path program 3 times [2022-12-13 22:39:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:39:31,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906576828] [2022-12-13 22:39:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:39:31,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:39:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:32,264 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 22:39:32,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:39:32,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906576828] [2022-12-13 22:39:32,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906576828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:39:32,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:39:32,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-12-13 22:39:32,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744595957] [2022-12-13 22:39:32,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:39:32,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 22:39:32,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:39:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 22:39:32,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2022-12-13 22:39:32,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 379 [2022-12-13 22:39:32,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 2556 transitions, 25273 flow. Second operand has 22 states, 22 states have (on average 175.22727272727272) internal successors, (3855), 22 states have internal predecessors, (3855), 0 states have call successors, (0), 0 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 22:39:32,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:39:32,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 379 [2022-12-13 22:39:32,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand