./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/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_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 --- 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 13:02:52,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:02:52,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:02:52,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:02:52,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:02:52,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:02:52,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:02:52,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:02:52,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:02:52,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:02:52,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:02:52,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:02:52,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:02:52,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:02:52,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:02:52,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:02:52,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:02:52,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:02:52,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:02:52,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:02:52,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:02:52,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:02:52,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:02:52,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:02:52,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:02:52,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:02:52,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:02:52,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:02:52,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:02:52,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:02:52,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:02:52,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:02:52,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:02:52,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:02:52,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:02:52,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:02:52,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:02:52,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:02:52,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:02:52,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:02:52,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:02:52,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:02:52,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:02:52,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:02:52,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:02:52,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:02:52,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:02:52,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:02:52,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:02:52,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:02:52,751 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:02:52,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:02:52,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:02:52,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:02:52,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:02:52,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:02:52,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:02:52,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:02:52,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:02:52,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:02:52,753 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:02:52,753 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:02:52,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:02:52,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:02:52,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:02:52,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:02:52,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:02:52,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:02:52,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:02:52,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:02:52,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:02:52,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:02:52,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:02:52,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:02:52,756 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:02:52,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:02:52,756 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:02:52,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:02:52,757 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:02:52,757 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_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-12-13 13:02:52,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:02:52,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:02:52,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:02:52,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:02:52,966 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:02:52,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 13:02:55,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:02:55,840 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:02:55,841 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 13:02:55,863 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/data/ab036a8d6/d026197665ea4ca3b188f14ad83660ab/FLAGce317aa3b [2022-12-13 13:02:55,873 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/data/ab036a8d6/d026197665ea4ca3b188f14ad83660ab [2022-12-13 13:02:55,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:02:55,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:02:55,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:02:55,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:02:55,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:02:55,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:02:55" (1/1) ... [2022-12-13 13:02:55,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b999d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:02:55, skipping insertion in model container [2022-12-13 13:02:55,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:02:55" (1/1) ... [2022-12-13 13:02:55,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:02:55,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:02:56,268 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_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 13:02:56,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,686 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:56,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:56,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:57,048 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 13:02:57,051 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:02:57,059 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:02:57,065 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:02:57,139 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:02:57,143 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:02:57,239 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 13:02:57,401 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:02:57,407 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:02:57,456 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 13:02:57,458 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 13:02:57,674 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 13:02:57,677 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 13:02:57,679 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 13:02:57,755 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 13:02:57,755 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:02:57,757 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 13:02:57,758 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:02:57,887 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 13:02:57,916 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 13:02:58,056 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 13:02:58,059 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 13:02:58,192 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 13:02:58,342 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 13:02:58,342 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 13:02:58,343 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 13:02:59,164 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 13:02:59,164 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,167 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,170 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,172 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,659 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 13:02:59,674 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 13:02:59,678 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 13:02:59,685 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 13:02:59,685 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 13:02:59,688 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 13:02:59,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:02:59,719 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:02:59,730 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_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 13:02:59,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:02:59,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:02:59,757 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 13:02:59,758 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:02:59,758 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:02:59,758 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:02:59,763 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:02:59,764 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:02:59,767 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 13:02:59,778 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:02:59,779 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:02:59,780 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 13:02:59,781 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 13:02:59,787 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 13:02:59,787 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 13:02:59,787 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 13:02:59,790 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 13:02:59,791 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:02:59,791 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 13:02:59,791 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:02:59,797 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 13:02:59,798 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 13:02:59,802 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 13:02:59,803 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 13:02:59,805 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 13:02:59,809 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 13:02:59,809 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 13:02:59,809 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 13:02:59,876 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 13:02:59,876 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,877 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,879 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,881 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:02:59,942 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 13:02:59,944 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 13:02:59,946 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 13:02:59,947 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 13:02:59,947 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 13:02:59,948 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 13:02:59,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:03:00,350 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:03:00,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00 WrapperNode [2022-12-13 13:03:00,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:03:00,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:03:00,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:03:00,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:03:00,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,484 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 447 [2022-12-13 13:03:00,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:03:00,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:03:00,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:03:00,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:03:00,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:03:00,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:03:00,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:03:00,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:03:00,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (1/1) ... [2022-12-13 13:03:00,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:03:00,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:03:00,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:03:00,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bcbeea1-eac1-4077-b617-70f8bcaf2a49/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:03:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 13:03:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:03:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:03:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:03:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:03:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:03:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:03:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 13:03:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:03:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-13 13:03:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-13 13:03:00,602 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 13:03:00,907 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:03:00,909 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:03:01,375 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:03:01,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:03:01,433 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:03:01,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:03:01 BoogieIcfgContainer [2022-12-13 13:03:01,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:03:01,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:03:01,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:03:01,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:03:01,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:02:55" (1/3) ... [2022-12-13 13:03:01,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d3f784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:03:01, skipping insertion in model container [2022-12-13 13:03:01,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:00" (2/3) ... [2022-12-13 13:03:01,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d3f784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:03:01, skipping insertion in model container [2022-12-13 13:03:01,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:03:01" (3/3) ... [2022-12-13 13:03:01,444 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 13:03:01,453 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:03:01,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:03:01,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2022-12-13 13:03:01,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:03:01,535 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 13:03:01,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 505 transitions, 1026 flow [2022-12-13 13:03:01,702 INFO L130 PetriNetUnfolder]: 11/503 cut-off events. [2022-12-13 13:03:01,702 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:03:01,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 503 events. 11/503 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 504 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 374. Up to 5 conditions per place. [2022-12-13 13:03:01,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 505 transitions, 1026 flow [2022-12-13 13:03:01,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 490 places, 494 transitions, 997 flow [2022-12-13 13:03:01,718 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:03:01,726 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 490 places, 494 transitions, 997 flow [2022-12-13 13:03:01,728 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 490 places, 494 transitions, 997 flow [2022-12-13 13:03:01,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 490 places, 494 transitions, 997 flow [2022-12-13 13:03:01,797 INFO L130 PetriNetUnfolder]: 11/494 cut-off events. [2022-12-13 13:03:01,798 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:03:01,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 494 events. 11/494 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 504 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 374. Up to 5 conditions per place. [2022-12-13 13:03:01,806 INFO L119 LiptonReduction]: Number of co-enabled transitions 18576 [2022-12-13 13:03:47,826 WARN L233 SmtUtils]: Spent 9.31s on a formula simplification that was a NOOP. DAG size: 410 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:03:54,497 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification that was a NOOP. DAG size: 362 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:04:01,029 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 410 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:04:06,277 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 362 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:05:47,008 WARN L233 SmtUtils]: Spent 1.61m on a formula simplification. DAG size of input: 522 DAG size of output: 518 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:06:33,989 WARN L233 SmtUtils]: Spent 46.97s on a formula simplification that was a NOOP. DAG size: 484 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:08:13,204 WARN L233 SmtUtils]: Spent 1.65m on a formula simplification. DAG size of input: 525 DAG size of output: 521 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:08:43,692 WARN L233 SmtUtils]: Spent 30.48s on a formula simplification that was a NOOP. DAG size: 487 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:11:16,208 WARN L233 SmtUtils]: Spent 2.54m on a formula simplification. DAG size of input: 538 DAG size of output: 534 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:12:40,913 WARN L233 SmtUtils]: Spent 1.41m on a formula simplification that was a NOOP. DAG size: 502 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:15:10,031 WARN L233 SmtUtils]: Spent 2.49m on a formula simplification. DAG size of input: 545 DAG size of output: 541 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:16:31,569 WARN L233 SmtUtils]: Spent 1.36m on a formula simplification that was a NOOP. DAG size: 509 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:16:31,618 INFO L134 LiptonReduction]: Checked pairs total: 88243 [2022-12-13 13:16:31,618 INFO L136 LiptonReduction]: Total number of compositions: 585 [2022-12-13 13:16:31,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:16:31,633 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;@363b7905, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:16:31,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-12-13 13:16:31,634 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:16:31,635 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:16:31,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:31,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:16:31,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:31,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1879, now seen corresponding path program 1 times [2022-12-13 13:16:31,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:31,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6929474] [2022-12-13 13:16:31,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:31,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:31,762 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 13:16:31,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:31,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6929474] [2022-12-13 13:16:31,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6929474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:31,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:31,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:16:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351174270] [2022-12-13 13:16:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:16:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:31,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:16:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:16:31,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 493 out of 1090 [2022-12-13 13:16:31,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 223 flow. Second operand has 2 states, 2 states have (on average 493.5) internal successors, (987), 2 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:31,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:31,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 493 of 1090 [2022-12-13 13:16:31,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:32,044 INFO L130 PetriNetUnfolder]: 186/727 cut-off events. [2022-12-13 13:16:32,044 INFO L131 PetriNetUnfolder]: For 31/185 co-relation queries the response was YES. [2022-12-13 13:16:32,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 727 events. 186/727 cut-off events. For 31/185 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4082 event pairs, 162 based on Foata normal form. 9/667 useless extension candidates. Maximal degree in co-relation 892. Up to 330 conditions per place. [2022-12-13 13:16:32,050 INFO L137 encePairwiseOnDemand]: 1060/1090 looper letters, 23 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2022-12-13 13:16:32,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 76 transitions, 207 flow [2022-12-13 13:16:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:16:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:16:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1039 transitions. [2022-12-13 13:16:32,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47660550458715595 [2022-12-13 13:16:32,069 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1039 transitions. [2022-12-13 13:16:32,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1039 transitions. [2022-12-13 13:16:32,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:32,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1039 transitions. [2022-12-13 13:16:32,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 519.5) internal successors, (1039), 2 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1090.0) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,092 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1090.0) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,094 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 223 flow. Second operand 2 states and 1039 transitions. [2022-12-13 13:16:32,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 76 transitions, 207 flow [2022-12-13 13:16:32,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 202 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:16:32,099 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 156 flow [2022-12-13 13:16:32,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=78, 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=156, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2022-12-13 13:16:32,105 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -32 predicate places. [2022-12-13 13:16:32,105 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 156 flow [2022-12-13 13:16:32,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 493.5) internal successors, (987), 2 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:32,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:16:32,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:16:32,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_unlocked_ioctlErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:32,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:32,107 INFO L85 PathProgramCache]: Analyzing trace with hash 58253519, now seen corresponding path program 1 times [2022-12-13 13:16:32,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:32,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306625599] [2022-12-13 13:16:32,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:32,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:32,323 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 13:16:32,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:32,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306625599] [2022-12-13 13:16:32,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306625599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:32,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:32,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:16:32,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703218750] [2022-12-13 13:16:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:32,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:16:32,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:16:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:16:32,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1090 [2022-12-13 13:16:32,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:32,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1090 [2022-12-13 13:16:32,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:32,602 INFO L130 PetriNetUnfolder]: 260/979 cut-off events. [2022-12-13 13:16:32,602 INFO L131 PetriNetUnfolder]: For 3/59 co-relation queries the response was YES. [2022-12-13 13:16:32,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1448 conditions, 979 events. 260/979 cut-off events. For 3/59 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5843 event pairs, 228 based on Foata normal form. 0/908 useless extension candidates. Maximal degree in co-relation 1445. Up to 451 conditions per place. [2022-12-13 13:16:32,606 INFO L137 encePairwiseOnDemand]: 1086/1090 looper letters, 24 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2022-12-13 13:16:32,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 73 transitions, 200 flow [2022-12-13 13:16:32,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:16:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:16:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1468 transitions. [2022-12-13 13:16:32,609 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4489296636085627 [2022-12-13 13:16:32,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1468 transitions. [2022-12-13 13:16:32,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1468 transitions. [2022-12-13 13:16:32,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:32,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1468 transitions. [2022-12-13 13:16:32,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1090.0) internal successors, (4360), 4 states have internal predecessors, (4360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1090.0) internal successors, (4360), 4 states have internal predecessors, (4360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,618 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 156 flow. Second operand 3 states and 1468 transitions. [2022-12-13 13:16:32,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 73 transitions, 200 flow [2022-12-13 13:16:32,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 73 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:16:32,620 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 152 flow [2022-12-13 13:16:32,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2022-12-13 13:16:32,621 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -33 predicate places. [2022-12-13 13:16:32,621 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 152 flow [2022-12-13 13:16:32,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:32,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:32,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:32,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:16:32,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:32,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 408537765, now seen corresponding path program 1 times [2022-12-13 13:16:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:32,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437318175] [2022-12-13 13:16:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:33,319 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 13:16:33,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:33,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437318175] [2022-12-13 13:16:33,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437318175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:33,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:33,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:16:33,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442987851] [2022-12-13 13:16:33,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:33,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:33,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:33,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:33,697 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 1090 [2022-12-13 13:16:33,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 477.6666666666667) internal successors, (2866), 6 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:33,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:33,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 1090 [2022-12-13 13:16:33,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:34,622 INFO L130 PetriNetUnfolder]: 1842/4031 cut-off events. [2022-12-13 13:16:34,623 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 13:16:34,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7034 conditions, 4031 events. 1842/4031 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 27424 event pairs, 613 based on Foata normal form. 0/3741 useless extension candidates. Maximal degree in co-relation 7030. Up to 1953 conditions per place. [2022-12-13 13:16:34,635 INFO L137 encePairwiseOnDemand]: 1074/1090 looper letters, 89 selfloop transitions, 45 changer transitions 0/171 dead transitions. [2022-12-13 13:16:34,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 171 transitions, 617 flow [2022-12-13 13:16:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:16:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:16:34,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2991 transitions. [2022-12-13 13:16:34,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4573394495412844 [2022-12-13 13:16:34,640 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2991 transitions. [2022-12-13 13:16:34,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2991 transitions. [2022-12-13 13:16:34,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:34,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2991 transitions. [2022-12-13 13:16:34,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 498.5) internal successors, (2991), 6 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:34,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1090.0) internal successors, (7630), 7 states have internal predecessors, (7630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:34,653 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1090.0) internal successors, (7630), 7 states have internal predecessors, (7630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:34,653 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 152 flow. Second operand 6 states and 2991 transitions. [2022-12-13 13:16:34,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 171 transitions, 617 flow [2022-12-13 13:16:34,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 171 transitions, 616 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:16:34,656 INFO L231 Difference]: Finished difference. Result has 87 places, 117 transitions, 449 flow [2022-12-13 13:16:34,656 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=449, PETRI_PLACES=87, PETRI_TRANSITIONS=117} [2022-12-13 13:16:34,657 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -24 predicate places. [2022-12-13 13:16:34,657 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 117 transitions, 449 flow [2022-12-13 13:16:34,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 477.6666666666667) internal successors, (2866), 6 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:34,658 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:34,658 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:34,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:16:34,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1938373165, now seen corresponding path program 1 times [2022-12-13 13:16:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:34,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774881938] [2022-12-13 13:16:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:35,867 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 13:16:35,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774881938] [2022-12-13 13:16:35,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774881938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:35,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:35,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:35,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359580493] [2022-12-13 13:16:35,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:35,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:35,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:35,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:35,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:36,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1090 [2022-12-13 13:16:36,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 117 transitions, 449 flow. Second operand has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:36,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:36,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1090 [2022-12-13 13:16:36,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:37,988 INFO L130 PetriNetUnfolder]: 2466/5863 cut-off events. [2022-12-13 13:16:37,988 INFO L131 PetriNetUnfolder]: For 1608/1608 co-relation queries the response was YES. [2022-12-13 13:16:37,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13361 conditions, 5863 events. 2466/5863 cut-off events. For 1608/1608 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 45922 event pairs, 159 based on Foata normal form. 60/5697 useless extension candidates. Maximal degree in co-relation 13353. Up to 1960 conditions per place. [2022-12-13 13:16:38,014 INFO L137 encePairwiseOnDemand]: 1079/1090 looper letters, 178 selfloop transitions, 34 changer transitions 0/249 dead transitions. [2022-12-13 13:16:38,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 249 transitions, 1358 flow [2022-12-13 13:16:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:16:38,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:16:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4339 transitions. [2022-12-13 13:16:38,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4423037716615698 [2022-12-13 13:16:38,026 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4339 transitions. [2022-12-13 13:16:38,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4339 transitions. [2022-12-13 13:16:38,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:38,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4339 transitions. [2022-12-13 13:16:38,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 482.1111111111111) internal successors, (4339), 9 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1090.0) internal successors, (10900), 10 states have internal predecessors, (10900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,074 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1090.0) internal successors, (10900), 10 states have internal predecessors, (10900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,075 INFO L175 Difference]: Start difference. First operand has 87 places, 117 transitions, 449 flow. Second operand 9 states and 4339 transitions. [2022-12-13 13:16:38,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 249 transitions, 1358 flow [2022-12-13 13:16:38,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 249 transitions, 1358 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:16:38,098 INFO L231 Difference]: Finished difference. Result has 101 places, 150 transitions, 785 flow [2022-12-13 13:16:38,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=785, PETRI_PLACES=101, PETRI_TRANSITIONS=150} [2022-12-13 13:16:38,099 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -10 predicate places. [2022-12-13 13:16:38,099 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 150 transitions, 785 flow [2022-12-13 13:16:38,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:38,102 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:38,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:16:38,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 156894637, now seen corresponding path program 2 times [2022-12-13 13:16:38,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:38,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303145841] [2022-12-13 13:16:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:38,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:39,386 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 13:16:39,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303145841] [2022-12-13 13:16:39,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303145841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:39,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:39,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:39,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758408317] [2022-12-13 13:16:39,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:39,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:39,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:39,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:40,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1090 [2022-12-13 13:16:40,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 150 transitions, 785 flow. Second operand has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:40,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:40,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1090 [2022-12-13 13:16:40,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:42,745 INFO L130 PetriNetUnfolder]: 2802/6881 cut-off events. [2022-12-13 13:16:42,745 INFO L131 PetriNetUnfolder]: For 6513/6513 co-relation queries the response was YES. [2022-12-13 13:16:42,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18779 conditions, 6881 events. 2802/6881 cut-off events. For 6513/6513 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 56922 event pairs, 538 based on Foata normal form. 60/6655 useless extension candidates. Maximal degree in co-relation 18764. Up to 2770 conditions per place. [2022-12-13 13:16:42,772 INFO L137 encePairwiseOnDemand]: 1070/1090 looper letters, 146 selfloop transitions, 105 changer transitions 0/288 dead transitions. [2022-12-13 13:16:42,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 288 transitions, 1911 flow [2022-12-13 13:16:42,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 13:16:42,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 13:16:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 6251 transitions. [2022-12-13 13:16:42,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44114326040931545 [2022-12-13 13:16:42,780 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 6251 transitions. [2022-12-13 13:16:42,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 6251 transitions. [2022-12-13 13:16:42,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:42,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 6251 transitions. [2022-12-13 13:16:42,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 480.84615384615387) internal successors, (6251), 13 states have internal predecessors, (6251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:42,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 1090.0) internal successors, (15260), 14 states have internal predecessors, (15260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:42,805 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 1090.0) internal successors, (15260), 14 states have internal predecessors, (15260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:42,806 INFO L175 Difference]: Start difference. First operand has 101 places, 150 transitions, 785 flow. Second operand 13 states and 6251 transitions. [2022-12-13 13:16:42,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 288 transitions, 1911 flow [2022-12-13 13:16:42,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 288 transitions, 1910 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:16:42,866 INFO L231 Difference]: Finished difference. Result has 114 places, 200 transitions, 1444 flow [2022-12-13 13:16:42,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1444, PETRI_PLACES=114, PETRI_TRANSITIONS=200} [2022-12-13 13:16:42,867 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 3 predicate places. [2022-12-13 13:16:42,867 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 200 transitions, 1444 flow [2022-12-13 13:16:42,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:42,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:42,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:42,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:16:42,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:42,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:42,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1082884871, now seen corresponding path program 3 times [2022-12-13 13:16:42,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:42,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981115195] [2022-12-13 13:16:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,831 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 13:16:43,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:43,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981115195] [2022-12-13 13:16:43,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981115195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:43,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:43,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700546679] [2022-12-13 13:16:43,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:43,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:43,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:43,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:43,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:44,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1090 [2022-12-13 13:16:44,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 200 transitions, 1444 flow. Second operand has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:44,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:44,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1090 [2022-12-13 13:16:44,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:46,527 INFO L130 PetriNetUnfolder]: 3591/9077 cut-off events. [2022-12-13 13:16:46,527 INFO L131 PetriNetUnfolder]: For 13947/13947 co-relation queries the response was YES. [2022-12-13 13:16:46,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27137 conditions, 9077 events. 3591/9077 cut-off events. For 13947/13947 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 80749 event pairs, 490 based on Foata normal form. 60/8822 useless extension candidates. Maximal degree in co-relation 27120. Up to 2594 conditions per place. [2022-12-13 13:16:46,563 INFO L137 encePairwiseOnDemand]: 1070/1090 looper letters, 195 selfloop transitions, 164 changer transitions 0/396 dead transitions. [2022-12-13 13:16:46,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 396 transitions, 3369 flow [2022-12-13 13:16:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:16:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:16:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5319 transitions. [2022-12-13 13:16:46,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44361968306922434 [2022-12-13 13:16:46,570 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5319 transitions. [2022-12-13 13:16:46,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5319 transitions. [2022-12-13 13:16:46,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:46,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5319 transitions. [2022-12-13 13:16:46,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 483.54545454545456) internal successors, (5319), 11 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:46,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 1090.0) internal successors, (13080), 12 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:46,585 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 1090.0) internal successors, (13080), 12 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:46,585 INFO L175 Difference]: Start difference. First operand has 114 places, 200 transitions, 1444 flow. Second operand 11 states and 5319 transitions. [2022-12-13 13:16:46,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 396 transitions, 3369 flow [2022-12-13 13:16:46,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 396 transitions, 3236 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-13 13:16:46,670 INFO L231 Difference]: Finished difference. Result has 126 places, 286 transitions, 2722 flow [2022-12-13 13:16:46,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=1356, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2722, PETRI_PLACES=126, PETRI_TRANSITIONS=286} [2022-12-13 13:16:46,671 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 15 predicate places. [2022-12-13 13:16:46,671 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 286 transitions, 2722 flow [2022-12-13 13:16:46,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:46,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:46,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:46,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:16:46,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:46,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash 891079417, now seen corresponding path program 4 times [2022-12-13 13:16:46,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:46,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946505872] [2022-12-13 13:16:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:46,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:47,574 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 13:16:47,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:47,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946505872] [2022-12-13 13:16:47,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946505872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:47,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:47,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:47,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233159499] [2022-12-13 13:16:47,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:47,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:47,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:47,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:47,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:48,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1090 [2022-12-13 13:16:48,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 286 transitions, 2722 flow. Second operand has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:48,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:48,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1090 [2022-12-13 13:16:48,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:50,813 INFO L130 PetriNetUnfolder]: 4069/10549 cut-off events. [2022-12-13 13:16:50,813 INFO L131 PetriNetUnfolder]: For 27918/27918 co-relation queries the response was YES. [2022-12-13 13:16:50,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35461 conditions, 10549 events. 4069/10549 cut-off events. For 27918/27918 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 98103 event pairs, 728 based on Foata normal form. 60/10280 useless extension candidates. Maximal degree in co-relation 35438. Up to 3944 conditions per place. [2022-12-13 13:16:50,852 INFO L137 encePairwiseOnDemand]: 1070/1090 looper letters, 182 selfloop transitions, 209 changer transitions 0/428 dead transitions. [2022-12-13 13:16:50,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 428 transitions, 4432 flow [2022-12-13 13:16:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:16:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:16:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5317 transitions. [2022-12-13 13:16:50,858 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4434528773978315 [2022-12-13 13:16:50,858 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5317 transitions. [2022-12-13 13:16:50,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5317 transitions. [2022-12-13 13:16:50,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:50,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5317 transitions. [2022-12-13 13:16:50,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 483.3636363636364) internal successors, (5317), 11 states have internal predecessors, (5317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:50,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 1090.0) internal successors, (13080), 12 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:50,873 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 1090.0) internal successors, (13080), 12 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:50,873 INFO L175 Difference]: Start difference. First operand has 126 places, 286 transitions, 2722 flow. Second operand 11 states and 5317 transitions. [2022-12-13 13:16:50,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 428 transitions, 4432 flow [2022-12-13 13:16:51,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 428 transitions, 4329 flow, removed 48 selfloop flow, removed 2 redundant places. [2022-12-13 13:16:51,068 INFO L231 Difference]: Finished difference. Result has 139 places, 340 transitions, 4073 flow [2022-12-13 13:16:51,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=2639, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4073, PETRI_PLACES=139, PETRI_TRANSITIONS=340} [2022-12-13 13:16:51,069 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 28 predicate places. [2022-12-13 13:16:51,069 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 340 transitions, 4073 flow [2022-12-13 13:16:51,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:51,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:51,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:51,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:16:51,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:51,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1994248365, now seen corresponding path program 5 times [2022-12-13 13:16:51,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:51,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384648186] [2022-12-13 13:16:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:51,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,855 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 13:16:51,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384648186] [2022-12-13 13:16:51,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384648186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:51,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:51,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:51,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424913071] [2022-12-13 13:16:51,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:51,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:51,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:51,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:51,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:52,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1090 [2022-12-13 13:16:52,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 340 transitions, 4073 flow. Second operand has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:52,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:52,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1090 [2022-12-13 13:16:52,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:55,288 INFO L130 PetriNetUnfolder]: 4147/10957 cut-off events. [2022-12-13 13:16:55,288 INFO L131 PetriNetUnfolder]: For 37958/37958 co-relation queries the response was YES. [2022-12-13 13:16:55,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39802 conditions, 10957 events. 4147/10957 cut-off events. For 37958/37958 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 103917 event pairs, 614 based on Foata normal form. 60/10618 useless extension candidates. Maximal degree in co-relation 39775. Up to 3485 conditions per place. [2022-12-13 13:16:55,334 INFO L137 encePairwiseOnDemand]: 1070/1090 looper letters, 211 selfloop transitions, 242 changer transitions 0/490 dead transitions. [2022-12-13 13:16:55,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 490 transitions, 6072 flow [2022-12-13 13:16:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:16:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:16:55,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5318 transitions. [2022-12-13 13:16:55,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4435362802335279 [2022-12-13 13:16:55,340 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5318 transitions. [2022-12-13 13:16:55,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5318 transitions. [2022-12-13 13:16:55,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:55,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5318 transitions. [2022-12-13 13:16:55,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 483.45454545454544) internal successors, (5318), 11 states have internal predecessors, (5318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:55,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 1090.0) internal successors, (13080), 12 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:55,353 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 1090.0) internal successors, (13080), 12 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:55,353 INFO L175 Difference]: Start difference. First operand has 139 places, 340 transitions, 4073 flow. Second operand 11 states and 5318 transitions. [2022-12-13 13:16:55,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 490 transitions, 6072 flow [2022-12-13 13:16:55,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 490 transitions, 5942 flow, removed 28 selfloop flow, removed 3 redundant places. [2022-12-13 13:16:55,755 INFO L231 Difference]: Finished difference. Result has 151 places, 394 transitions, 5470 flow [2022-12-13 13:16:55,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=3955, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5470, PETRI_PLACES=151, PETRI_TRANSITIONS=394} [2022-12-13 13:16:55,756 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 40 predicate places. [2022-12-13 13:16:55,756 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 394 transitions, 5470 flow [2022-12-13 13:16:55,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 467.4) internal successors, (4674), 10 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:55,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:55,757 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:55,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:16:55,758 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:16:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1211916108, now seen corresponding path program 1 times [2022-12-13 13:16:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:55,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023369961] [2022-12-13 13:16:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:55,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,950 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 13:16:56,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:56,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023369961] [2022-12-13 13:16:56,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023369961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:56,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:56,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:56,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935491029] [2022-12-13 13:16:56,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:56,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:16:56,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:56,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:16:56,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:57,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 1090 [2022-12-13 13:16:57,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 394 transitions, 5470 flow. Second operand has 8 states, 8 states have (on average 476.625) internal successors, (3813), 8 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:57,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:57,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 1090 [2022-12-13 13:16:57,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:59,622 INFO L130 PetriNetUnfolder]: 4292/10985 cut-off events. [2022-12-13 13:16:59,622 INFO L131 PetriNetUnfolder]: For 46503/46503 co-relation queries the response was YES. [2022-12-13 13:16:59,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44010 conditions, 10985 events. 4292/10985 cut-off events. For 46503/46503 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 102587 event pairs, 850 based on Foata normal form. 38/10625 useless extension candidates. Maximal degree in co-relation 43978. Up to 4116 conditions per place. [2022-12-13 13:16:59,671 INFO L137 encePairwiseOnDemand]: 1075/1090 looper letters, 311 selfloop transitions, 148 changer transitions 0/496 dead transitions. [2022-12-13 13:16:59,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 496 transitions, 6822 flow [2022-12-13 13:16:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:16:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:16:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3460 transitions. [2022-12-13 13:16:59,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4534731323722149 [2022-12-13 13:16:59,675 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3460 transitions. [2022-12-13 13:16:59,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3460 transitions. [2022-12-13 13:16:59,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:59,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3460 transitions. [2022-12-13 13:16:59,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 494.2857142857143) internal successors, (3460), 7 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:59,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1090.0) internal successors, (8720), 8 states have internal predecessors, (8720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:59,683 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1090.0) internal successors, (8720), 8 states have internal predecessors, (8720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:59,683 INFO L175 Difference]: Start difference. First operand has 151 places, 394 transitions, 5470 flow. Second operand 7 states and 3460 transitions. [2022-12-13 13:16:59,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 496 transitions, 6822 flow [2022-12-13 13:17:00,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 496 transitions, 6718 flow, removed 37 selfloop flow, removed 2 redundant places. [2022-12-13 13:17:00,072 INFO L231 Difference]: Finished difference. Result has 160 places, 430 transitions, 6164 flow [2022-12-13 13:17:00,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=5366, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6164, PETRI_PLACES=160, PETRI_TRANSITIONS=430} [2022-12-13 13:17:00,072 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 49 predicate places. [2022-12-13 13:17:00,073 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 430 transitions, 6164 flow [2022-12-13 13:17:00,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 476.625) internal successors, (3813), 8 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:00,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:17:00,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:17:00,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:17:00,073 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:17:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash -353435733, now seen corresponding path program 1 times [2022-12-13 13:17:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:00,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403642870] [2022-12-13 13:17:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:00,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:01,135 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 13:17:01,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:01,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403642870] [2022-12-13 13:17:01,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403642870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:01,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:01,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:17:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320862165] [2022-12-13 13:17:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:01,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:17:01,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:01,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:17:01,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:17:01,700 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1090 [2022-12-13 13:17:01,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 430 transitions, 6164 flow. Second operand has 10 states, 10 states have (on average 453.6) internal successors, (4536), 10 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:01,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:17:01,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1090 [2022-12-13 13:17:01,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:17:05,585 INFO L130 PetriNetUnfolder]: 7361/16213 cut-off events. [2022-12-13 13:17:05,585 INFO L131 PetriNetUnfolder]: For 109489/111968 co-relation queries the response was YES. [2022-12-13 13:17:05,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75868 conditions, 16213 events. 7361/16213 cut-off events. For 109489/111968 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 147687 event pairs, 954 based on Foata normal form. 1246/17006 useless extension candidates. Maximal degree in co-relation 75831. Up to 7587 conditions per place. [2022-12-13 13:17:05,677 INFO L137 encePairwiseOnDemand]: 1057/1090 looper letters, 425 selfloop transitions, 736 changer transitions 0/1230 dead transitions. [2022-12-13 13:17:05,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 1230 transitions, 20521 flow [2022-12-13 13:17:05,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:17:05,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:17:05,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4673 transitions. [2022-12-13 13:17:05,692 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42871559633027523 [2022-12-13 13:17:05,692 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4673 transitions. [2022-12-13 13:17:05,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4673 transitions. [2022-12-13 13:17:05,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:17:05,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4673 transitions. [2022-12-13 13:17:05,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 467.3) internal successors, (4673), 10 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:05,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1090.0) internal successors, (11990), 11 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:05,710 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1090.0) internal successors, (11990), 11 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:05,710 INFO L175 Difference]: Start difference. First operand has 160 places, 430 transitions, 6164 flow. Second operand 10 states and 4673 transitions. [2022-12-13 13:17:05,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 1230 transitions, 20521 flow [2022-12-13 13:17:06,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 1230 transitions, 20518 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:17:06,330 INFO L231 Difference]: Finished difference. Result has 177 places, 1164 transitions, 21277 flow [2022-12-13 13:17:06,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=6161, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21277, PETRI_PLACES=177, PETRI_TRANSITIONS=1164} [2022-12-13 13:17:06,331 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 66 predicate places. [2022-12-13 13:17:06,331 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 1164 transitions, 21277 flow [2022-12-13 13:17:06,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 453.6) internal successors, (4536), 10 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:06,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:17:06,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:17:06,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:17:06,332 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_nvram_llseekErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:17:06,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:06,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1550793720, now seen corresponding path program 1 times [2022-12-13 13:17:06,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:06,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864576414] [2022-12-13 13:17:06,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:06,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:17:07,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:07,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864576414] [2022-12-13 13:17:07,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864576414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:07,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:07,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:17:07,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268638300] [2022-12-13 13:17:07,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:07,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:17:07,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:07,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:17:07,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:17:08,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 1090 [2022-12-13 13:17:08,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 1164 transitions, 21277 flow. Second operand has 10 states, 10 states have (on average 445.6) internal successors, (4456), 10 states have internal predecessors, (4456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:08,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:17:08,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 1090 [2022-12-13 13:17:08,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:17:16,532 INFO L130 PetriNetUnfolder]: 14879/27924 cut-off events. [2022-12-13 13:17:16,533 INFO L131 PetriNetUnfolder]: For 235501/236834 co-relation queries the response was YES. [2022-12-13 13:17:16,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146282 conditions, 27924 events. 14879/27924 cut-off events. For 235501/236834 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 230893 event pairs, 6106 based on Foata normal form. 548/27894 useless extension candidates. Maximal degree in co-relation 146237. Up to 23753 conditions per place. [2022-12-13 13:17:16,725 INFO L137 encePairwiseOnDemand]: 1069/1090 looper letters, 1137 selfloop transitions, 620 changer transitions 0/1782 dead transitions. [2022-12-13 13:17:16,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 1782 transitions, 33612 flow [2022-12-13 13:17:16,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:17:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:17:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4634 transitions. [2022-12-13 13:17:16,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4251376146788991 [2022-12-13 13:17:16,731 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4634 transitions. [2022-12-13 13:17:16,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4634 transitions. [2022-12-13 13:17:16,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:17:16,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4634 transitions. [2022-12-13 13:17:16,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 463.4) internal successors, (4634), 10 states have internal predecessors, (4634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:16,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1090.0) internal successors, (11990), 11 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:16,743 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1090.0) internal successors, (11990), 11 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:16,743 INFO L175 Difference]: Start difference. First operand has 177 places, 1164 transitions, 21277 flow. Second operand 10 states and 4634 transitions. [2022-12-13 13:17:16,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 1782 transitions, 33612 flow [2022-12-13 13:17:18,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 1782 transitions, 33153 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:17:18,726 INFO L231 Difference]: Finished difference. Result has 194 places, 1742 transitions, 32279 flow [2022-12-13 13:17:18,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=20936, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32279, PETRI_PLACES=194, PETRI_TRANSITIONS=1742} [2022-12-13 13:17:18,727 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 83 predicate places. [2022-12-13 13:17:18,727 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 1742 transitions, 32279 flow [2022-12-13 13:17:18,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 445.6) internal successors, (4456), 10 states have internal predecessors, (4456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:18,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:17:18,727 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:17:18,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:17:18,728 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_nvram_llseekErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:17:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash -272113907, now seen corresponding path program 1 times [2022-12-13 13:17:18,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:18,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402232052] [2022-12-13 13:17:18,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:18,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:20,285 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 13:17:20,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:20,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402232052] [2022-12-13 13:17:20,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402232052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:20,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:20,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 13:17:20,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968582333] [2022-12-13 13:17:20,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:20,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 13:17:20,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:20,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 13:17:20,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:17:20,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 1090 [2022-12-13 13:17:20,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 1742 transitions, 32279 flow. Second operand has 14 states, 14 states have (on average 434.2857142857143) internal successors, (6080), 14 states have internal predecessors, (6080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:20,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:17:20,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 1090 [2022-12-13 13:17:20,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:17:32,263 INFO L130 PetriNetUnfolder]: 15100/28278 cut-off events. [2022-12-13 13:17:32,263 INFO L131 PetriNetUnfolder]: For 265911/267230 co-relation queries the response was YES. [2022-12-13 13:17:32,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163181 conditions, 28278 events. 15100/28278 cut-off events. For 265911/267230 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 234298 event pairs, 3386 based on Foata normal form. 643/28549 useless extension candidates. Maximal degree in co-relation 163128. Up to 21558 conditions per place. [2022-12-13 13:17:32,491 INFO L137 encePairwiseOnDemand]: 1070/1090 looper letters, 1336 selfloop transitions, 931 changer transitions 0/2292 dead transitions. [2022-12-13 13:17:32,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 2292 transitions, 46030 flow [2022-12-13 13:17:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:17:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 13:17:32,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5405 transitions. [2022-12-13 13:17:32,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4132262996941896 [2022-12-13 13:17:32,497 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 5405 transitions. [2022-12-13 13:17:32,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 5405 transitions. [2022-12-13 13:17:32,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:17:32,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 5405 transitions. [2022-12-13 13:17:32,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 450.4166666666667) internal successors, (5405), 12 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:32,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1090.0) internal successors, (14170), 13 states have internal predecessors, (14170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:32,509 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1090.0) internal successors, (14170), 13 states have internal predecessors, (14170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:32,509 INFO L175 Difference]: Start difference. First operand has 194 places, 1742 transitions, 32279 flow. Second operand 12 states and 5405 transitions. [2022-12-13 13:17:32,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 2292 transitions, 46030 flow [2022-12-13 13:17:35,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 2292 transitions, 45036 flow, removed 497 selfloop flow, removed 0 redundant places. [2022-12-13 13:17:35,791 INFO L231 Difference]: Finished difference. Result has 214 places, 2152 transitions, 43075 flow [2022-12-13 13:17:35,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=31285, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=566, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=43075, PETRI_PLACES=214, PETRI_TRANSITIONS=2152} [2022-12-13 13:17:35,792 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 103 predicate places. [2022-12-13 13:17:35,792 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 2152 transitions, 43075 flow [2022-12-13 13:17:35,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 434.2857142857143) internal successors, (6080), 14 states have internal predecessors, (6080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:17:35,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:17:35,793 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:17:35,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:17:35,793 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-12-13 13:17:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:35,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2059938204, now seen corresponding path program 1 times [2022-12-13 13:17:35,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:35,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422828256] [2022-12-13 13:17:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat