./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/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_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb --- 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 13:55:18,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:55:18,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:55:18,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:55:18,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:55:18,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:55:18,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:55:18,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:55:18,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:55:18,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:55:19,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:55:19,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:55:19,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:55:19,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:55:19,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:55:19,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:55:19,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:55:19,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:55:19,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:55:19,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:55:19,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:55:19,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:55:19,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:55:19,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:55:19,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:55:19,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:55:19,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:55:19,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:55:19,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:55:19,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:55:19,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:55:19,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:55:19,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:55:19,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:55:19,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:55:19,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:55:19,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:55:19,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:55:19,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:55:19,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:55:19,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:55:19,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:55:19,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:55:19,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:55:19,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:55:19,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:55:19,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:55:19,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:55:19,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:55:19,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:55:19,055 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:55:19,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:55:19,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:55:19,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:55:19,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:55:19,057 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:55:19,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:55:19,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:55:19,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:55:19,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:55:19,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:55:19,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:55:19,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:55:19,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:55:19,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:55:19,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:55:19,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:55:19,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:55:19,059 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:55:19,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:55:19,059 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:55:19,059 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_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb [2022-12-13 13:55:19,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:55:19,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:55:19,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:55:19,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:55:19,255 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:55:19,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-13 13:55:21,843 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:55:22,176 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:55:22,176 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-13 13:55:22,199 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/data/b6c6ae873/108a3203bde748c0b41b95f08285c2d6/FLAG5fab7b81a [2022-12-13 13:55:22,210 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/data/b6c6ae873/108a3203bde748c0b41b95f08285c2d6 [2022-12-13 13:55:22,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:55:22,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:55:22,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:55:22,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:55:22,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:55:22,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:55:22" (1/1) ... [2022-12-13 13:55:22,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c9f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:22, skipping insertion in model container [2022-12-13 13:55:22,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:55:22" (1/1) ... [2022-12-13 13:55:22,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:55:22,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:55:22,520 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_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-13 13:55:22,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:22,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:22,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:23,409 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 13:55:23,412 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:55:23,416 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:55:23,422 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:55:23,508 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:55:23,512 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:55:23,619 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 13:55:23,797 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:55:23,803 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:55:23,857 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 13:55:23,860 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 13:55:24,101 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 13:55:24,104 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 13:55:24,106 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 13:55:24,186 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 13:55:24,186 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:55:24,188 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 13:55:24,189 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:55:24,333 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 13:55:24,366 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 13:55:24,530 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 13:55:24,534 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 13:55:24,699 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 13:55:24,882 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 13:55:24,882 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 13:55:24,883 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 13:55:25,677 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 13:55:25,677 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:25,680 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:25,683 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:25,685 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:26,239 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 13:55:26,244 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 13:55:26,248 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 13:55:26,256 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 13:55:26,256 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 13:55:26,259 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 13:55:26,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:55:26,290 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:55:26,300 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_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-13 13:55:26,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:55:26,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:55:26,331 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 13:55:26,331 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:55:26,331 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:55:26,332 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 13:55:26,335 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:55:26,335 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 13:55:26,337 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 13:55:26,345 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:55:26,346 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 13:55:26,347 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 13:55:26,348 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 13:55:26,354 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 13:55:26,354 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 13:55:26,354 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 13:55:26,356 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 13:55:26,357 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:55:26,357 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 13:55:26,357 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 13:55:26,363 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 13:55:26,364 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 13:55:26,368 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 13:55:26,369 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 13:55:26,371 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 13:55:26,374 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 13:55:26,374 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 13:55:26,374 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 13:55:26,431 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 13:55:26,431 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:26,433 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:26,435 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:26,437 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 13:55:26,467 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 13:55:26,468 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 13:55:26,468 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 13:55:26,469 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 13:55:26,470 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 13:55:26,470 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 13:55:26,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:55:26,822 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:55:26,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26 WrapperNode [2022-12-13 13:55:26,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:55:26,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:55:26,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:55:26,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:55:26,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,912 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-13 13:55:26,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:55:26,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:55:26,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:55:26,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:55:26,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,944 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:55:26,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:55:26,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:55:26,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:55:26,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (1/1) ... [2022-12-13 13:55:26,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:55:26,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:55:26,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:55:26,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:55:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:55:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:55:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 13:55:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:55:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:55:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 13:55:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-13 13:55:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-13 13:55:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:55:27,011 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 13:55:27,307 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:55:27,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:55:27,621 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:55:27,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:55:27,641 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:55:27,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:55:27 BoogieIcfgContainer [2022-12-13 13:55:27,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:55:27,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:55:27,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:55:27,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:55:27,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:55:22" (1/3) ... [2022-12-13 13:55:27,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f23415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:55:27, skipping insertion in model container [2022-12-13 13:55:27,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:55:26" (2/3) ... [2022-12-13 13:55:27,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f23415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:55:27, skipping insertion in model container [2022-12-13 13:55:27,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:55:27" (3/3) ... [2022-12-13 13:55:27,649 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-13 13:55:27,655 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:55:27,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:55:27,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:55:27,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:55:27,743 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 13:55:27,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 365 transitions, 746 flow [2022-12-13 13:55:27,859 INFO L130 PetriNetUnfolder]: 11/363 cut-off events. [2022-12-13 13:55:27,859 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:55:27,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 363 events. 11/363 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 298. Up to 4 conditions per place. [2022-12-13 13:55:27,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 365 transitions, 746 flow [2022-12-13 13:55:27,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 354 transitions, 717 flow [2022-12-13 13:55:27,872 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:55:27,879 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 350 places, 354 transitions, 717 flow [2022-12-13 13:55:27,881 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 350 places, 354 transitions, 717 flow [2022-12-13 13:55:27,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 354 transitions, 717 flow [2022-12-13 13:55:27,939 INFO L130 PetriNetUnfolder]: 11/354 cut-off events. [2022-12-13 13:55:27,939 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:55:27,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 354 events. 11/354 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 298. Up to 4 conditions per place. [2022-12-13 13:55:27,945 INFO L119 LiptonReduction]: Number of co-enabled transitions 12132 [2022-12-13 13:55:57,470 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:56:03,655 WARN L233 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:56:11,016 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:56:18,767 WARN L233 SmtUtils]: Spent 7.75s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:56:44,443 WARN L233 SmtUtils]: Spent 24.98s on a formula simplification that was a NOOP. DAG size: 468 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:57:05,606 WARN L233 SmtUtils]: Spent 21.16s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:57:51,230 WARN L233 SmtUtils]: Spent 45.62s on a formula simplification. DAG size of input: 474 DAG size of output: 472 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:58:05,510 WARN L233 SmtUtils]: Spent 14.27s on a formula simplification that was a NOOP. DAG size: 439 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:59:53,462 WARN L233 SmtUtils]: Spent 1.80m on a formula simplification. DAG size of input: 524 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:00:51,706 WARN L233 SmtUtils]: Spent 58.24s on a formula simplification that was a NOOP. DAG size: 503 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:02:07,717 WARN L233 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 535 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:02:45,937 WARN L233 SmtUtils]: Spent 38.21s on a formula simplification that was a NOOP. DAG size: 514 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:02:45,939 INFO L134 LiptonReduction]: Checked pairs total: 10969 [2022-12-13 14:02:45,939 INFO L136 LiptonReduction]: Total number of compositions: 393 [2022-12-13 14:02:45,949 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:02:45,952 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;@68a10a54, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:02:45,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 14:02:45,962 INFO L130 PetriNetUnfolder]: 4/16 cut-off events. [2022-12-13 14:02:45,962 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 14:02:45,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:45,963 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:02:45,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1893711345, now seen corresponding path program 1 times [2022-12-13 14:02:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:45,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45873192] [2022-12-13 14:02:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:45,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:46,690 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 14:02:46,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:46,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45873192] [2022-12-13 14:02:46,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45873192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:46,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:46,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:02:46,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109057855] [2022-12-13 14:02:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:46,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:02:46,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:02:46,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:02:46,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 758 [2022-12-13 14:02:46,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 344.0) internal successors, (1032), 3 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:46,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:46,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 758 [2022-12-13 14:02:46,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:47,167 INFO L130 PetriNetUnfolder]: 137/232 cut-off events. [2022-12-13 14:02:47,167 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 14:02:47,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 232 events. 137/232 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 692 event pairs, 53 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 412. Up to 186 conditions per place. [2022-12-13 14:02:47,168 INFO L137 encePairwiseOnDemand]: 750/758 looper letters, 15 selfloop transitions, 6 changer transitions 8/29 dead transitions. [2022-12-13 14:02:47,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 29 transitions, 131 flow [2022-12-13 14:02:47,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:02:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:02:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1056 transitions. [2022-12-13 14:02:47,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46437994722955145 [2022-12-13 14:02:47,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1056 transitions. [2022-12-13 14:02:47,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1056 transitions. [2022-12-13 14:02:47,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:47,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1056 transitions. [2022-12-13 14:02:47,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:47,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:47,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:47,204 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 47 flow. Second operand 3 states and 1056 transitions. [2022-12-13 14:02:47,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 29 transitions, 131 flow [2022-12-13 14:02:47,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 29 transitions, 123 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:02:47,208 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 71 flow [2022-12-13 14:02:47,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2022-12-13 14:02:47,213 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 14:02:47,213 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 71 flow [2022-12-13 14:02:47,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.0) internal successors, (1032), 3 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:47,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:47,214 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:47,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:02:47,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1424490576, now seen corresponding path program 1 times [2022-12-13 14:02:47,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:47,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273023665] [2022-12-13 14:02:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:47,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:47,727 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 14:02:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:47,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273023665] [2022-12-13 14:02:47,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273023665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:47,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:47,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:02:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912336546] [2022-12-13 14:02:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:47,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:02:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:02:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:02:47,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 758 [2022-12-13 14:02:47,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 71 flow. Second operand has 6 states, 6 states have (on average 338.1666666666667) internal successors, (2029), 6 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:47,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:47,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 758 [2022-12-13 14:02:47,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:48,364 INFO L130 PetriNetUnfolder]: 68/124 cut-off events. [2022-12-13 14:02:48,364 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 14:02:48,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 124 events. 68/124 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 371 event pairs, 3 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 262. Up to 90 conditions per place. [2022-12-13 14:02:48,365 INFO L137 encePairwiseOnDemand]: 750/758 looper letters, 19 selfloop transitions, 9 changer transitions 2/30 dead transitions. [2022-12-13 14:02:48,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 30 transitions, 171 flow [2022-12-13 14:02:48,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:02:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:02:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1714 transitions. [2022-12-13 14:02:48,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45224274406332454 [2022-12-13 14:02:48,371 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1714 transitions. [2022-12-13 14:02:48,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1714 transitions. [2022-12-13 14:02:48,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:48,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1714 transitions. [2022-12-13 14:02:48,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 342.8) internal successors, (1714), 5 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:48,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 758.0) internal successors, (4548), 6 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:48,385 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 758.0) internal successors, (4548), 6 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:48,386 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 71 flow. Second operand 5 states and 1714 transitions. [2022-12-13 14:02:48,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 30 transitions, 171 flow [2022-12-13 14:02:48,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 30 transitions, 165 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:02:48,387 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 104 flow [2022-12-13 14:02:48,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2022-12-13 14:02:48,388 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2022-12-13 14:02:48,388 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 104 flow [2022-12-13 14:02:48,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.1666666666667) internal successors, (2029), 6 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:48,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:48,390 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:48,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:02:48,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:48,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash -461632210, now seen corresponding path program 1 times [2022-12-13 14:02:48,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248198761] [2022-12-13 14:02:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:49,146 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 14:02:49,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:49,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248198761] [2022-12-13 14:02:49,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248198761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:49,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:49,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:02:49,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118070662] [2022-12-13 14:02:49,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:49,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:02:49,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:49,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:02:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:02:49,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 758 [2022-12-13 14:02:49,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 341.5) internal successors, (2049), 6 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:49,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:49,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 758 [2022-12-13 14:02:49,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:50,019 INFO L130 PetriNetUnfolder]: 69/131 cut-off events. [2022-12-13 14:02:50,020 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2022-12-13 14:02:50,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 131 events. 69/131 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 422 event pairs, 7 based on Foata normal form. 6/127 useless extension candidates. Maximal degree in co-relation 274. Up to 89 conditions per place. [2022-12-13 14:02:50,021 INFO L137 encePairwiseOnDemand]: 752/758 looper letters, 19 selfloop transitions, 6 changer transitions 7/32 dead transitions. [2022-12-13 14:02:50,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 212 flow [2022-12-13 14:02:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:02:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:02:50,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1729 transitions. [2022-12-13 14:02:50,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4562005277044855 [2022-12-13 14:02:50,030 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1729 transitions. [2022-12-13 14:02:50,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1729 transitions. [2022-12-13 14:02:50,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:50,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1729 transitions. [2022-12-13 14:02:50,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 345.8) internal successors, (1729), 5 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:50,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 758.0) internal successors, (4548), 6 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:50,048 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 758.0) internal successors, (4548), 6 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:50,048 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 104 flow. Second operand 5 states and 1729 transitions. [2022-12-13 14:02:50,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 212 flow [2022-12-13 14:02:50,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 32 transitions, 201 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:02:50,051 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 99 flow [2022-12-13 14:02:50,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=99, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2022-12-13 14:02:50,052 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2022-12-13 14:02:50,052 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 99 flow [2022-12-13 14:02:50,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.5) internal successors, (2049), 6 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:50,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:50,055 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:50,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:02:50,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:50,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1158836732, now seen corresponding path program 2 times [2022-12-13 14:02:50,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:50,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947419867] [2022-12-13 14:02:50,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:51,943 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 14:02:51,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:51,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947419867] [2022-12-13 14:02:51,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947419867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:51,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:51,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:02:51,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372315019] [2022-12-13 14:02:51,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:51,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:02:51,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:02:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:02:52,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 758 [2022-12-13 14:02:52,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 99 flow. Second operand has 7 states, 7 states have (on average 338.2857142857143) internal successors, (2368), 7 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:52,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:52,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 758 [2022-12-13 14:02:52,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:52,716 INFO L130 PetriNetUnfolder]: 42/90 cut-off events. [2022-12-13 14:02:52,716 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-12-13 14:02:52,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 90 events. 42/90 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 266 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 190. Up to 52 conditions per place. [2022-12-13 14:02:52,717 INFO L137 encePairwiseOnDemand]: 753/758 looper letters, 17 selfloop transitions, 6 changer transitions 4/27 dead transitions. [2022-12-13 14:02:52,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 187 flow [2022-12-13 14:02:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:02:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:02:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1710 transitions. [2022-12-13 14:02:52,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45118733509234826 [2022-12-13 14:02:52,720 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1710 transitions. [2022-12-13 14:02:52,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1710 transitions. [2022-12-13 14:02:52,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:52,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1710 transitions. [2022-12-13 14:02:52,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 342.0) internal successors, (1710), 5 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:52,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 758.0) internal successors, (4548), 6 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:52,728 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 758.0) internal successors, (4548), 6 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:52,728 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 99 flow. Second operand 5 states and 1710 transitions. [2022-12-13 14:02:52,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 187 flow [2022-12-13 14:02:52,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 177 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 14:02:52,729 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 99 flow [2022-12-13 14:02:52,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=99, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2022-12-13 14:02:52,730 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2022-12-13 14:02:52,730 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 99 flow [2022-12-13 14:02:52,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 338.2857142857143) internal successors, (2368), 7 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:52,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:52,732 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:52,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:02:52,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1479434381, now seen corresponding path program 1 times [2022-12-13 14:02:52,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:52,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996392400] [2022-12-13 14:02:52,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:52,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:53,417 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 14:02:53,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:53,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996392400] [2022-12-13 14:02:53,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996392400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:53,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:53,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:02:53,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510918826] [2022-12-13 14:02:53,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:53,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:02:53,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:53,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:02:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:02:53,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 758 [2022-12-13 14:02:53,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 99 flow. Second operand has 7 states, 7 states have (on average 340.42857142857144) internal successors, (2383), 7 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:53,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:53,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 758 [2022-12-13 14:02:53,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:54,428 INFO L130 PetriNetUnfolder]: 34/78 cut-off events. [2022-12-13 14:02:54,429 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2022-12-13 14:02:54,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 78 events. 34/78 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 209 event pairs, 6 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 120. Up to 29 conditions per place. [2022-12-13 14:02:54,429 INFO L137 encePairwiseOnDemand]: 751/758 looper letters, 16 selfloop transitions, 8 changer transitions 7/31 dead transitions. [2022-12-13 14:02:54,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 31 transitions, 220 flow [2022-12-13 14:02:54,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:02:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 14:02:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2742 transitions. [2022-12-13 14:02:54,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45217678100263853 [2022-12-13 14:02:54,436 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2742 transitions. [2022-12-13 14:02:54,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2742 transitions. [2022-12-13 14:02:54,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:54,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2742 transitions. [2022-12-13 14:02:54,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 342.75) internal successors, (2742), 8 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:54,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 758.0) internal successors, (6822), 9 states have internal predecessors, (6822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:54,452 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 758.0) internal successors, (6822), 9 states have internal predecessors, (6822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:54,452 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 99 flow. Second operand 8 states and 2742 transitions. [2022-12-13 14:02:54,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 31 transitions, 220 flow [2022-12-13 14:02:54,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 205 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 14:02:54,454 INFO L231 Difference]: Finished difference. Result has 32 places, 18 transitions, 124 flow [2022-12-13 14:02:54,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=124, PETRI_PLACES=32, PETRI_TRANSITIONS=18} [2022-12-13 14:02:54,455 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 10 predicate places. [2022-12-13 14:02:54,455 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 18 transitions, 124 flow [2022-12-13 14:02:54,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 340.42857142857144) internal successors, (2383), 7 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:54,456 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:54,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:54,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:02:54,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:54,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:54,457 INFO L85 PathProgramCache]: Analyzing trace with hash 253596139, now seen corresponding path program 2 times [2022-12-13 14:02:54,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:54,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277439046] [2022-12-13 14:02:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:54,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:55,179 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 14:02:55,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:55,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277439046] [2022-12-13 14:02:55,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277439046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:55,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:55,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:02:55,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751329718] [2022-12-13 14:02:55,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:55,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:02:55,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:55,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:02:55,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:02:55,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 758 [2022-12-13 14:02:55,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 18 transitions, 124 flow. Second operand has 7 states, 7 states have (on average 339.42857142857144) internal successors, (2376), 7 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:55,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:55,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 758 [2022-12-13 14:02:55,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:55,988 INFO L130 PetriNetUnfolder]: 27/65 cut-off events. [2022-12-13 14:02:55,988 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2022-12-13 14:02:55,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 65 events. 27/65 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 156 event pairs, 1 based on Foata normal form. 2/67 useless extension candidates. Maximal degree in co-relation 230. Up to 23 conditions per place. [2022-12-13 14:02:55,989 INFO L137 encePairwiseOnDemand]: 752/758 looper letters, 8 selfloop transitions, 5 changer transitions 15/28 dead transitions. [2022-12-13 14:02:55,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 213 flow [2022-12-13 14:02:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:02:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:02:55,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2393 transitions. [2022-12-13 14:02:55,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45099886920467397 [2022-12-13 14:02:55,992 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2393 transitions. [2022-12-13 14:02:55,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2393 transitions. [2022-12-13 14:02:55,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:55,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2393 transitions. [2022-12-13 14:02:55,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 341.85714285714283) internal successors, (2393), 7 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:55,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 758.0) internal successors, (6064), 8 states have internal predecessors, (6064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:56,001 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 758.0) internal successors, (6064), 8 states have internal predecessors, (6064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:56,001 INFO L175 Difference]: Start difference. First operand has 32 places, 18 transitions, 124 flow. Second operand 7 states and 2393 transitions. [2022-12-13 14:02:56,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 213 flow [2022-12-13 14:02:56,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 205 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 14:02:56,003 INFO L231 Difference]: Finished difference. Result has 34 places, 12 transitions, 75 flow [2022-12-13 14:02:56,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=75, PETRI_PLACES=34, PETRI_TRANSITIONS=12} [2022-12-13 14:02:56,004 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 12 predicate places. [2022-12-13 14:02:56,004 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 12 transitions, 75 flow [2022-12-13 14:02:56,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 339.42857142857144) internal successors, (2376), 7 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:56,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:56,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:56,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:02:56,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:02:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:56,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1564201685, now seen corresponding path program 3 times [2022-12-13 14:02:56,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:56,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430302721] [2022-12-13 14:02:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:56,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:56,944 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 14:02:56,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:56,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430302721] [2022-12-13 14:02:56,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430302721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:56,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:56,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:02:56,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150272144] [2022-12-13 14:02:56,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:56,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:02:56,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:56,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:02:56,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:02:57,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 758 [2022-12-13 14:02:57,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 12 transitions, 75 flow. Second operand has 8 states, 8 states have (on average 336.25) internal successors, (2690), 8 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:57,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:57,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 758 [2022-12-13 14:02:57,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:57,656 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-12-13 14:02:57,656 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-13 14:02:57,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 15 events. 3/15 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2022-12-13 14:02:57,656 INFO L137 encePairwiseOnDemand]: 753/758 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-13 14:02:57,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 12 transitions, 91 flow [2022-12-13 14:02:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:02:57,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:02:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2023 transitions. [2022-12-13 14:02:57,659 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4448109058927001 [2022-12-13 14:02:57,659 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2023 transitions. [2022-12-13 14:02:57,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2023 transitions. [2022-12-13 14:02:57,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:57,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2023 transitions. [2022-12-13 14:02:57,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 337.1666666666667) internal successors, (2023), 6 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:57,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 758.0) internal successors, (5306), 7 states have internal predecessors, (5306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:57,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 758.0) internal successors, (5306), 7 states have internal predecessors, (5306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:57,666 INFO L175 Difference]: Start difference. First operand has 34 places, 12 transitions, 75 flow. Second operand 6 states and 2023 transitions. [2022-12-13 14:02:57,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 12 transitions, 91 flow [2022-12-13 14:02:57,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 12 transitions, 53 flow, removed 4 selfloop flow, removed 14 redundant places. [2022-12-13 14:02:57,666 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-13 14:02:57,666 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-13 14:02:57,667 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 14:02:57,667 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2022-12-13 14:02:57,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 336.25) internal successors, (2690), 8 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:02:57,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 14:02:57,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 14:02:57,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 14:02:57,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 14:02:57,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:02:57,670 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2022-12-13 14:02:57,673 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:02:57,673 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:02:57,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:02:57 BasicIcfg [2022-12-13 14:02:57,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:02:57,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:02:57,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:02:57,676 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:02:57,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:55:27" (3/4) ... [2022-12-13 14:02:57,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:02:57,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2022-12-13 14:02:57,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 14:02:57,685 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-12-13 14:02:57,685 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 14:02:57,685 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 14:02:57,685 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 14:02:57,686 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:02:57,713 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:02:57,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:02:57,713 INFO L158 Benchmark]: Toolchain (without parser) took 455500.71ms. Allocated memory was 134.2MB in the beginning and 343.9MB in the end (delta: 209.7MB). Free memory was 87.8MB in the beginning and 154.6MB in the end (delta: -66.8MB). Peak memory consumption was 145.3MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,713 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:02:57,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4609.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 87.8MB in the beginning and 58.9MB in the end (delta: 28.9MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.89ms. Allocated memory is still 161.5MB. Free memory was 58.9MB in the beginning and 49.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,714 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 161.5MB. Free memory was 49.5MB in the beginning and 99.4MB in the end (delta: -50.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,714 INFO L158 Benchmark]: RCFGBuilder took 692.29ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 56.4MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,714 INFO L158 Benchmark]: TraceAbstraction took 450031.07ms. Allocated memory was 161.5MB in the beginning and 343.9MB in the end (delta: 182.5MB). Free memory was 56.4MB in the beginning and 158.8MB in the end (delta: -102.4MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,714 INFO L158 Benchmark]: Witness Printer took 36.72ms. Allocated memory is still 343.9MB. Free memory was 158.8MB in the beginning and 154.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:02:57,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4609.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 87.8MB in the beginning and 58.9MB in the end (delta: 28.9MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.89ms. Allocated memory is still 161.5MB. Free memory was 58.9MB in the beginning and 49.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 161.5MB. Free memory was 49.5MB in the beginning and 99.4MB in the end (delta: -50.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 692.29ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 56.4MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 450031.07ms. Allocated memory was 161.5MB in the beginning and 343.9MB in the end (delta: 182.5MB). Free memory was 56.4MB in the beginning and 158.8MB in the end (delta: -102.4MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. * Witness Printer took 36.72ms. Allocated memory is still 343.9MB. Free memory was 158.8MB in the beginning and 154.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 438.1s, 350 PlacesBefore, 22 PlacesAfterwards, 354 TransitionsBefore, 19 TransitionsAfterwards, 12132 CoEnabledTransitionPairs, 10 FixpointIterations, 196 TrivialSequentialCompositions, 150 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 27 ConcurrentYvCompositions, 7 ChoiceCompositions, 393 TotalNumberOfCompositions, 10969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9630, independent: 9527, independent conditional: 0, independent unconditional: 9527, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6622, independent: 6586, independent conditional: 0, independent unconditional: 6586, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9630, independent: 2941, independent conditional: 0, independent unconditional: 2941, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 6622, unknown conditional: 0, unknown unconditional: 6622] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 498 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 449.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 438.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1655 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1118 mSDsluCounter, 975 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 708 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2738 IncrementalHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 267 mSDtfsCounter, 2738 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=5, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 833 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 14:02:57,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76ca7ff-76bc-4cb8-8f46-fb62e3e9fc2c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE