./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/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_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/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_aee3aeda-15c9-4fff-a215-21f4e31da677/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 b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 --- 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 18:04:42,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:04:42,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:04:42,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:04:42,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:04:42,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:04:42,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:04:42,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:04:42,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:04:42,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:04:42,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:04:42,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:04:42,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:04:42,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:04:42,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:04:42,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:04:42,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:04:42,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:04:42,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:04:42,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:04:42,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:04:42,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:04:42,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:04:42,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:04:42,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:04:42,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:04:42,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:04:42,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:04:42,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:04:42,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:04:42,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:04:42,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:04:42,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:04:42,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:04:42,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:04:42,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:04:42,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:04:42,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:04:42,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:04:42,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:04:42,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:04:42,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:04:43,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:04:43,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:04:43,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:04:43,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:04:43,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:04:43,013 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:04:43,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:04:43,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:04:43,014 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:04:43,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:04:43,014 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:04:43,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:04:43,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:04:43,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:04:43,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:04:43,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:04:43,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:04:43,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:04:43,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:04:43,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:04:43,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:04:43,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:04:43,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:04:43,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:04:43,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:04:43,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:04:43,018 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:04:43,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:04:43,018 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:04:43,018 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_aee3aeda-15c9-4fff-a215-21f4e31da677/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-12-13 18:04:43,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:04:43,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:04:43,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:04:43,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:04:43,234 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:04:43,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-13 18:04:45,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:04:46,108 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:04:46,109 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-13 18:04:46,134 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/data/624a14d06/877b8bcf93b540ceb9004021d04700a8/FLAG45f665bc9 [2022-12-13 18:04:46,144 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/data/624a14d06/877b8bcf93b540ceb9004021d04700a8 [2022-12-13 18:04:46,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:04:46,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:04:46,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:04:46,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:04:46,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:04:46,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:04:46" (1/1) ... [2022-12-13 18:04:46,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d92254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:46, skipping insertion in model container [2022-12-13 18:04:46,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:04:46" (1/1) ... [2022-12-13 18:04:46,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:04:46,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:04:46,541 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_aee3aeda-15c9-4fff-a215-21f4e31da677/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-12-13 18:04:46,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:46,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:46,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:46,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:46,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:46,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:46,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:46,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:47,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:47,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:47,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:47,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:47,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:47,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:47,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:47,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:47,388 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 18:04:47,391 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 18:04:47,394 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 18:04:47,400 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 18:04:47,472 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 18:04:47,476 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 18:04:47,564 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 18:04:47,721 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 18:04:47,727 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 18:04:47,775 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 18:04:47,778 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 18:04:47,993 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 18:04:47,995 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 18:04:47,998 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 18:04:48,077 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 18:04:48,077 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 18:04:48,080 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 18:04:48,080 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 18:04:48,209 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 18:04:48,238 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 18:04:48,378 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 18:04:48,382 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 18:04:48,520 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 18:04:48,682 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 18:04:48,682 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 18:04:48,682 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 18:04:49,431 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 18:04:49,432 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:49,435 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:49,437 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:49,440 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:49,908 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 18:04:49,912 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 18:04:49,916 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 18:04:49,923 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 18:04:49,923 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 18:04:49,926 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 18:04:49,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:04:49,955 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:04:49,965 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_aee3aeda-15c9-4fff-a215-21f4e31da677/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-12-13 18:04:49,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:04:49,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:04:49,989 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 18:04:49,990 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 18:04:49,990 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 18:04:49,991 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 18:04:49,994 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 18:04:49,994 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 18:04:49,996 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 18:04:50,005 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 18:04:50,005 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 18:04:50,007 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 18:04:50,007 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 18:04:50,014 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 18:04:50,014 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 18:04:50,014 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 18:04:50,017 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 18:04:50,017 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 18:04:50,017 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 18:04:50,017 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 18:04:50,023 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 18:04:50,025 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 18:04:50,028 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 18:04:50,029 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 18:04:50,032 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 18:04:50,035 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 18:04:50,035 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 18:04:50,035 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 18:04:50,197 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 18:04:50,197 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:50,199 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:50,201 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:50,203 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 18:04:50,233 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 18:04:50,234 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 18:04:50,235 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 18:04:50,237 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 18:04:50,237 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 18:04:50,238 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 18:04:50,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:04:50,685 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:04:50,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50 WrapperNode [2022-12-13 18:04:50,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:04:50,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:04:50,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:04:50,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:04:50,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,809 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 314 [2022-12-13 18:04:50,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:04:50,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:04:50,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:04:50,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:04:50,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,858 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:04:50,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:04:50,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:04:50,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:04:50,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (1/1) ... [2022-12-13 18:04:50,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:04:50,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:04:50,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:04:50,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:04:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:04:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 18:04:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-13 18:04:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-13 18:04:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:04:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-13 18:04:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-13 18:04:50,936 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 18:04:51,250 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:04:51,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:04:51,585 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:04:51,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:04:51,595 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:04:51,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:04:51 BoogieIcfgContainer [2022-12-13 18:04:51,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:04:51,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:04:51,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:04:51,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:04:51,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:04:46" (1/3) ... [2022-12-13 18:04:51,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b42f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:04:51, skipping insertion in model container [2022-12-13 18:04:51,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:04:50" (2/3) ... [2022-12-13 18:04:51,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b42f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:04:51, skipping insertion in model container [2022-12-13 18:04:51,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:04:51" (3/3) ... [2022-12-13 18:04:51,606 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-13 18:04:51,614 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:04:51,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:04:51,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:04:51,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:04:51,711 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 18:04:51,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 367 transitions, 750 flow [2022-12-13 18:04:51,829 INFO L130 PetriNetUnfolder]: 15/365 cut-off events. [2022-12-13 18:04:51,829 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:04:51,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 365 events. 15/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 341 event pairs, 0 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 298. Up to 5 conditions per place. [2022-12-13 18:04:51,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 367 transitions, 750 flow [2022-12-13 18:04:51,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 348 places, 356 transitions, 721 flow [2022-12-13 18:04:51,843 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:04:51,850 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 348 places, 356 transitions, 721 flow [2022-12-13 18:04:51,852 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 348 places, 356 transitions, 721 flow [2022-12-13 18:04:51,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 348 places, 356 transitions, 721 flow [2022-12-13 18:04:51,914 INFO L130 PetriNetUnfolder]: 15/356 cut-off events. [2022-12-13 18:04:51,914 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 18:04:51,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 356 events. 15/356 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 322 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 298. Up to 5 conditions per place. [2022-12-13 18:04:51,920 INFO L119 LiptonReduction]: Number of co-enabled transitions 12540 [2022-12-13 18:06:02,087 WARN L233 SmtUtils]: Spent 29.30s on a formula simplification that was a NOOP. DAG size: 494 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:06:18,346 WARN L233 SmtUtils]: Spent 16.25s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:06:45,460 WARN L233 SmtUtils]: Spent 27.11s on a formula simplification that was a NOOP. DAG size: 494 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:07:05,864 WARN L233 SmtUtils]: Spent 20.39s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:08:58,368 WARN L233 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 517 DAG size of output: 513 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:09:51,700 WARN L233 SmtUtils]: Spent 53.33s on a formula simplification that was a NOOP. DAG size: 501 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:11:50,191 WARN L233 SmtUtils]: Spent 1.97m on a formula simplification. DAG size of input: 527 DAG size of output: 523 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:12:54,563 WARN L233 SmtUtils]: Spent 1.07m on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:12:54,575 INFO L134 LiptonReduction]: Checked pairs total: 13704 [2022-12-13 18:12:54,575 INFO L136 LiptonReduction]: Total number of compositions: 410 [2022-12-13 18:12:54,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:12:54,588 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;@5954bff9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:12:54,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 18:12:54,594 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-12-13 18:12:54,594 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 18:12:54,594 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:54,595 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:12:54,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:12:54,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:54,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2121145681, now seen corresponding path program 1 times [2022-12-13 18:12:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:54,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465658038] [2022-12-13 18:12:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:54,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:55,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:12:55,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:55,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465658038] [2022-12-13 18:12:55,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465658038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:55,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:55,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:12:55,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140449602] [2022-12-13 18:12:55,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:55,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:12:55,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:55,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:12:55,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:12:55,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 777 [2022-12-13 18:12:55,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:55,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:55,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 777 [2022-12-13 18:12:55,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:55,949 INFO L130 PetriNetUnfolder]: 197/332 cut-off events. [2022-12-13 18:12:55,949 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 18:12:55,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 332 events. 197/332 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1130 event pairs, 89 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 580. Up to 236 conditions per place. [2022-12-13 18:12:55,952 INFO L137 encePairwiseOnDemand]: 772/777 looper letters, 26 selfloop transitions, 4 changer transitions 3/33 dead transitions. [2022-12-13 18:12:55,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 147 flow [2022-12-13 18:12:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:12:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:12:55,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1063 transitions. [2022-12-13 18:12:55,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45602745602745604 [2022-12-13 18:12:55,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1063 transitions. [2022-12-13 18:12:55,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1063 transitions. [2022-12-13 18:12:55,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:55,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1063 transitions. [2022-12-13 18:12:55,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:55,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 777.0) internal successors, (3108), 4 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:55,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 777.0) internal successors, (3108), 4 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:55,993 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 51 flow. Second operand 3 states and 1063 transitions. [2022-12-13 18:12:55,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 147 flow [2022-12-13 18:12:55,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 33 transitions, 139 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 18:12:55,997 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 76 flow [2022-12-13 18:12:55,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2022-12-13 18:12:56,001 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2022-12-13 18:12:56,002 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 76 flow [2022-12-13 18:12:56,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:56,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:56,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:56,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:12:56,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:12:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1410133367, now seen corresponding path program 1 times [2022-12-13 18:12:56,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:56,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578055056] [2022-12-13 18:12:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:56,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:56,365 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 18:12:56,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:56,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578055056] [2022-12-13 18:12:56,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578055056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:56,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:56,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:12:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120705585] [2022-12-13 18:12:56,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:56,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:12:56,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:56,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:12:56,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:12:56,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 777 [2022-12-13 18:12:56,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:56,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:56,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 777 [2022-12-13 18:12:56,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:56,772 INFO L130 PetriNetUnfolder]: 192/343 cut-off events. [2022-12-13 18:12:56,772 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2022-12-13 18:12:56,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 343 events. 192/343 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1228 event pairs, 85 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 480. Up to 199 conditions per place. [2022-12-13 18:12:56,774 INFO L137 encePairwiseOnDemand]: 773/777 looper letters, 24 selfloop transitions, 3 changer transitions 11/38 dead transitions. [2022-12-13 18:12:56,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 38 transitions, 193 flow [2022-12-13 18:12:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:12:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:12:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1061 transitions. [2022-12-13 18:12:56,777 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4551694551694552 [2022-12-13 18:12:56,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1061 transitions. [2022-12-13 18:12:56,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1061 transitions. [2022-12-13 18:12:56,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:56,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1061 transitions. [2022-12-13 18:12:56,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 353.6666666666667) internal successors, (1061), 3 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:56,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 777.0) internal successors, (3108), 4 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:56,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 777.0) internal successors, (3108), 4 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:56,788 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 76 flow. Second operand 3 states and 1061 transitions. [2022-12-13 18:12:56,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 38 transitions, 193 flow [2022-12-13 18:12:56,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 38 transitions, 181 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:12:56,791 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 82 flow [2022-12-13 18:12:56,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2022-12-13 18:12:56,792 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2022-12-13 18:12:56,792 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 82 flow [2022-12-13 18:12:56,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:56,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:56,793 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:56,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:12:56,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:12:56,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:56,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1331006545, now seen corresponding path program 1 times [2022-12-13 18:12:56,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:56,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808845107] [2022-12-13 18:12:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:56,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:57,534 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 18:12:57,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:57,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808845107] [2022-12-13 18:12:57,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808845107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:57,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:57,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:12:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674855720] [2022-12-13 18:12:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:57,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:12:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:57,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:12:57,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:12:57,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 777 [2022-12-13 18:12:57,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 339.1666666666667) internal successors, (2035), 6 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:57,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:57,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 777 [2022-12-13 18:12:57,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:58,281 INFO L130 PetriNetUnfolder]: 126/253 cut-off events. [2022-12-13 18:12:58,281 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2022-12-13 18:12:58,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 253 events. 126/253 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1005 event pairs, 21 based on Foata normal form. 7/260 useless extension candidates. Maximal degree in co-relation 502. Up to 127 conditions per place. [2022-12-13 18:12:58,282 INFO L137 encePairwiseOnDemand]: 772/777 looper letters, 24 selfloop transitions, 6 changer transitions 8/38 dead transitions. [2022-12-13 18:12:58,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 211 flow [2022-12-13 18:12:58,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:12:58,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 18:12:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1727 transitions. [2022-12-13 18:12:58,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44453024453024453 [2022-12-13 18:12:58,287 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1727 transitions. [2022-12-13 18:12:58,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1727 transitions. [2022-12-13 18:12:58,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:58,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1727 transitions. [2022-12-13 18:12:58,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 345.4) internal successors, (1727), 5 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:58,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 777.0) internal successors, (4662), 6 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:58,302 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 777.0) internal successors, (4662), 6 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:58,302 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 82 flow. Second operand 5 states and 1727 transitions. [2022-12-13 18:12:58,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 211 flow [2022-12-13 18:12:58,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:12:58,304 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 100 flow [2022-12-13 18:12:58,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 18:12:58,305 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2022-12-13 18:12:58,305 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 100 flow [2022-12-13 18:12:58,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 339.1666666666667) internal successors, (2035), 6 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:58,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:58,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:58,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:12:58,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:12:58,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:58,307 INFO L85 PathProgramCache]: Analyzing trace with hash 33741024, now seen corresponding path program 1 times [2022-12-13 18:12:58,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:58,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445968875] [2022-12-13 18:12:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:58,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:59,180 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 18:12:59,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:59,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445968875] [2022-12-13 18:12:59,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445968875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:59,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:59,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:12:59,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813538114] [2022-12-13 18:12:59,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:59,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:12:59,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:59,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:12:59,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:12:59,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 777 [2022-12-13 18:12:59,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 100 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 18:12:59,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:59,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 777 [2022-12-13 18:12:59,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:13:00,112 INFO L130 PetriNetUnfolder]: 157/336 cut-off events. [2022-12-13 18:13:00,113 INFO L131 PetriNetUnfolder]: For 299/299 co-relation queries the response was YES. [2022-12-13 18:13:00,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 336 events. 157/336 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1492 event pairs, 24 based on Foata normal form. 6/342 useless extension candidates. Maximal degree in co-relation 382. Up to 111 conditions per place. [2022-12-13 18:13:00,114 INFO L137 encePairwiseOnDemand]: 770/777 looper letters, 31 selfloop transitions, 10 changer transitions 14/55 dead transitions. [2022-12-13 18:13:00,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 55 transitions, 328 flow [2022-12-13 18:13:00,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:13:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:13:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2757 transitions. [2022-12-13 18:13:00,119 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4435328185328185 [2022-12-13 18:13:00,120 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2757 transitions. [2022-12-13 18:13:00,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2757 transitions. [2022-12-13 18:13:00,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:13:00,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2757 transitions. [2022-12-13 18:13:00,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 344.625) internal successors, (2757), 8 states have internal predecessors, (2757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:00,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 777.0) internal successors, (6993), 9 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:00,133 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 777.0) internal successors, (6993), 9 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:00,133 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 100 flow. Second operand 8 states and 2757 transitions. [2022-12-13 18:13:00,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 55 transitions, 328 flow [2022-12-13 18:13:00,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 55 transitions, 314 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 18:13:00,135 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 142 flow [2022-12-13 18:13:00,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=142, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2022-12-13 18:13:00,136 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2022-12-13 18:13:00,136 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 142 flow [2022-12-13 18:13:00,138 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 18:13:00,138 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:13:00,138 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:13:00,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:13:00,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:13:00,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:13:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1503587004, now seen corresponding path program 2 times [2022-12-13 18:13:00,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:13:00,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315245492] [2022-12-13 18:13:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:13:00,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:13:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:13:00,873 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 18:13:00,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:13:00,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315245492] [2022-12-13 18:13:00,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315245492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:13:00,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:13:00,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:13:00,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952953586] [2022-12-13 18:13:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:13:00,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:13:00,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:13:00,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:13:00,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:13:01,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 777 [2022-12-13 18:13:01,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 142 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 18:13:01,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:13:01,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 777 [2022-12-13 18:13:01,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:13:01,868 INFO L130 PetriNetUnfolder]: 155/334 cut-off events. [2022-12-13 18:13:01,869 INFO L131 PetriNetUnfolder]: For 415/415 co-relation queries the response was YES. [2022-12-13 18:13:01,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 334 events. 155/334 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1529 event pairs, 28 based on Foata normal form. 6/340 useless extension candidates. Maximal degree in co-relation 836. Up to 169 conditions per place. [2022-12-13 18:13:01,870 INFO L137 encePairwiseOnDemand]: 770/777 looper letters, 22 selfloop transitions, 9 changer transitions 14/45 dead transitions. [2022-12-13 18:13:01,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 302 flow [2022-12-13 18:13:01,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:13:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:13:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2069 transitions. [2022-12-13 18:13:01,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4438009438009438 [2022-12-13 18:13:01,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2069 transitions. [2022-12-13 18:13:01,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2069 transitions. [2022-12-13 18:13:01,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:13:01,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2069 transitions. [2022-12-13 18:13:01,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:01,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 777.0) internal successors, (5439), 7 states have internal predecessors, (5439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:01,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 777.0) internal successors, (5439), 7 states have internal predecessors, (5439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:01,884 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 142 flow. Second operand 6 states and 2069 transitions. [2022-12-13 18:13:01,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 302 flow [2022-12-13 18:13:01,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 296 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 18:13:01,886 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 152 flow [2022-12-13 18:13:01,886 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=152, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2022-12-13 18:13:01,886 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 16 predicate places. [2022-12-13 18:13:01,887 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 152 flow [2022-12-13 18:13:01,887 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 18:13:01,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:13:01,887 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:13:01,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:13:01,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:13:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:13:01,888 INFO L85 PathProgramCache]: Analyzing trace with hash 214245619, now seen corresponding path program 1 times [2022-12-13 18:13:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:13:01,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062314968] [2022-12-13 18:13:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:13:01,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:13:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:13:02,535 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 18:13:02,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:13:02,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062314968] [2022-12-13 18:13:02,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062314968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:13:02,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:13:02,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:13:02,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908353034] [2022-12-13 18:13:02,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:13:02,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:13:02,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:13:02,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:13:02,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:13:02,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 777 [2022-12-13 18:13:02,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 338.42857142857144) internal successors, (2369), 7 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:02,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:13:02,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 777 [2022-12-13 18:13:02,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:13:03,377 INFO L130 PetriNetUnfolder]: 131/280 cut-off events. [2022-12-13 18:13:03,377 INFO L131 PetriNetUnfolder]: For 399/399 co-relation queries the response was YES. [2022-12-13 18:13:03,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 280 events. 131/280 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1157 event pairs, 15 based on Foata normal form. 6/286 useless extension candidates. Maximal degree in co-relation 818. Up to 109 conditions per place. [2022-12-13 18:13:03,378 INFO L137 encePairwiseOnDemand]: 771/777 looper letters, 28 selfloop transitions, 10 changer transitions 15/53 dead transitions. [2022-12-13 18:13:03,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 348 flow [2022-12-13 18:13:03,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:13:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:13:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2746 transitions. [2022-12-13 18:13:03,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4417631917631918 [2022-12-13 18:13:03,382 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2746 transitions. [2022-12-13 18:13:03,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2746 transitions. [2022-12-13 18:13:03,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:13:03,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2746 transitions. [2022-12-13 18:13:03,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 343.25) internal successors, (2746), 8 states have internal predecessors, (2746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:03,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 777.0) internal successors, (6993), 9 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:03,391 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 777.0) internal successors, (6993), 9 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:03,391 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 152 flow. Second operand 8 states and 2746 transitions. [2022-12-13 18:13:03,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 348 flow [2022-12-13 18:13:03,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 53 transitions, 326 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-13 18:13:03,393 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 170 flow [2022-12-13 18:13:03,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=170, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2022-12-13 18:13:03,393 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2022-12-13 18:13:03,394 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 170 flow [2022-12-13 18:13:03,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 338.42857142857144) internal successors, (2369), 7 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:03,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:13:03,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:13:03,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:13:03,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:13:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:13:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash 214274484, now seen corresponding path program 3 times [2022-12-13 18:13:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:13:03,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127754470] [2022-12-13 18:13:03,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:13:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:13:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:13:03,872 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 18:13:03,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:13:03,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127754470] [2022-12-13 18:13:03,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127754470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:13:03,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:13:03,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:13:03,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953900465] [2022-12-13 18:13:03,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:13:03,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:13:03,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:13:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:13:03,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:13:04,161 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 777 [2022-12-13 18:13:04,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 170 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 18:13:04,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:13:04,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 777 [2022-12-13 18:13:04,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:13:04,765 INFO L130 PetriNetUnfolder]: 107/244 cut-off events. [2022-12-13 18:13:04,765 INFO L131 PetriNetUnfolder]: For 436/436 co-relation queries the response was YES. [2022-12-13 18:13:04,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 244 events. 107/244 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1007 event pairs, 24 based on Foata normal form. 6/250 useless extension candidates. Maximal degree in co-relation 510. Up to 70 conditions per place. [2022-12-13 18:13:04,766 INFO L137 encePairwiseOnDemand]: 771/777 looper letters, 21 selfloop transitions, 8 changer transitions 21/50 dead transitions. [2022-12-13 18:13:04,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 333 flow [2022-12-13 18:13:04,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:13:04,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:13:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2414 transitions. [2022-12-13 18:13:04,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4438315866887296 [2022-12-13 18:13:04,770 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2414 transitions. [2022-12-13 18:13:04,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2414 transitions. [2022-12-13 18:13:04,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:13:04,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2414 transitions. [2022-12-13 18:13:04,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 344.85714285714283) internal successors, (2414), 7 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:04,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 777.0) internal successors, (6216), 8 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:04,777 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 777.0) internal successors, (6216), 8 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:04,777 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 170 flow. Second operand 7 states and 2414 transitions. [2022-12-13 18:13:04,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 333 flow [2022-12-13 18:13:04,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 323 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 18:13:04,779 INFO L231 Difference]: Finished difference. Result has 47 places, 25 transitions, 154 flow [2022-12-13 18:13:04,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=154, PETRI_PLACES=47, PETRI_TRANSITIONS=25} [2022-12-13 18:13:04,780 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 23 predicate places. [2022-12-13 18:13:04,780 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 25 transitions, 154 flow [2022-12-13 18:13:04,780 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 18:13:04,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:13:04,781 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:13:04,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:13:04,781 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:13:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:13:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash 33712159, now seen corresponding path program 2 times [2022-12-13 18:13:04,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:13:04,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379159587] [2022-12-13 18:13:04,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:13:04,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:13:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:13:11,011 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 18:13:11,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:13:11,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379159587] [2022-12-13 18:13:11,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379159587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:13:11,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:13:11,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:13:11,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672583768] [2022-12-13 18:13:11,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:13:11,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:13:11,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:13:11,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:13:11,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:13:11,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 777 [2022-12-13 18:13:11,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 25 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 335.42857142857144) internal successors, (2348), 7 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:11,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:13:11,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 777 [2022-12-13 18:13:11,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:13:11,692 INFO L130 PetriNetUnfolder]: 87/194 cut-off events. [2022-12-13 18:13:11,692 INFO L131 PetriNetUnfolder]: For 370/370 co-relation queries the response was YES. [2022-12-13 18:13:11,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 194 events. 87/194 cut-off events. For 370/370 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 689 event pairs, 20 based on Foata normal form. 6/200 useless extension candidates. Maximal degree in co-relation 593. Up to 66 conditions per place. [2022-12-13 18:13:11,693 INFO L137 encePairwiseOnDemand]: 772/777 looper letters, 13 selfloop transitions, 3 changer transitions 27/43 dead transitions. [2022-12-13 18:13:11,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 281 flow [2022-12-13 18:13:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:13:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:13:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2379 transitions. [2022-12-13 18:13:11,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43739658025372313 [2022-12-13 18:13:11,696 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2379 transitions. [2022-12-13 18:13:11,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2379 transitions. [2022-12-13 18:13:11,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:13:11,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2379 transitions. [2022-12-13 18:13:11,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 339.85714285714283) internal successors, (2379), 7 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:11,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 777.0) internal successors, (6216), 8 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:11,703 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 777.0) internal successors, (6216), 8 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:11,703 INFO L175 Difference]: Start difference. First operand has 47 places, 25 transitions, 154 flow. Second operand 7 states and 2379 transitions. [2022-12-13 18:13:11,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 281 flow [2022-12-13 18:13:11,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 261 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-13 18:13:11,705 INFO L231 Difference]: Finished difference. Result has 45 places, 14 transitions, 76 flow [2022-12-13 18:13:11,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=76, PETRI_PLACES=45, PETRI_TRANSITIONS=14} [2022-12-13 18:13:11,705 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 21 predicate places. [2022-12-13 18:13:11,705 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 14 transitions, 76 flow [2022-12-13 18:13:11,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 335.42857142857144) internal successors, (2348), 7 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:11,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:13:11,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:13:11,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:13:11,706 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 18:13:11,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:13:11,707 INFO L85 PathProgramCache]: Analyzing trace with hash -887165400, now seen corresponding path program 4 times [2022-12-13 18:13:11,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:13:11,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032417320] [2022-12-13 18:13:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:13:11,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:13:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:13:12,313 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 18:13:12,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:13:12,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032417320] [2022-12-13 18:13:12,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032417320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:13:12,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:13:12,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:13:12,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275335407] [2022-12-13 18:13:12,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:13:12,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:13:12,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:13:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:13:12,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:13:12,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 777 [2022-12-13 18:13:12,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 14 transitions, 76 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 18:13:12,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:13:12,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 777 [2022-12-13 18:13:12,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:13:13,314 INFO L130 PetriNetUnfolder]: 5/21 cut-off events. [2022-12-13 18:13:13,315 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-13 18:13:13,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 21 events. 5/21 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 6/27 useless extension candidates. Maximal degree in co-relation 55. Up to 12 conditions per place. [2022-12-13 18:13:13,315 INFO L137 encePairwiseOnDemand]: 772/777 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-12-13 18:13:13,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 14 transitions, 100 flow [2022-12-13 18:13:13,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:13:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:13:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2025 transitions. [2022-12-13 18:13:13,318 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4343629343629344 [2022-12-13 18:13:13,318 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2025 transitions. [2022-12-13 18:13:13,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2025 transitions. [2022-12-13 18:13:13,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:13:13,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2025 transitions. [2022-12-13 18:13:13,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 337.5) internal successors, (2025), 6 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:13,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 777.0) internal successors, (5439), 7 states have internal predecessors, (5439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:13,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 777.0) internal successors, (5439), 7 states have internal predecessors, (5439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:13:13,324 INFO L175 Difference]: Start difference. First operand has 45 places, 14 transitions, 76 flow. Second operand 6 states and 2025 transitions. [2022-12-13 18:13:13,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 14 transitions, 100 flow [2022-12-13 18:13:13,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 14 transitions, 63 flow, removed 2 selfloop flow, removed 16 redundant places. [2022-12-13 18:13:13,324 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2022-12-13 18:13:13,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2022-12-13 18:13:13,325 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2022-12-13 18:13:13,325 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2022-12-13 18:13:13,325 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 18:13:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-13 18:13:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-12-13 18:13:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-13 18:13:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-12-13 18:13:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-13 18:13:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-13 18:13:13,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:13:13,328 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1] [2022-12-13 18:13:13,331 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:13:13,331 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:13:13,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:13:13 BasicIcfg [2022-12-13 18:13:13,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:13:13,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:13:13,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:13:13,334 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:13:13,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:04:51" (3/4) ... [2022-12-13 18:13:13,336 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:13:13,339 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2022-12-13 18:13:13,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_llseek [2022-12-13 18:13:13,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-12-13 18:13:13,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 18:13:13,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 18:13:13,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:13:13,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:13:13,372 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:13:13,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:13:13,373 INFO L158 Benchmark]: Toolchain (without parser) took 507224.99ms. Allocated memory was 119.5MB in the beginning and 545.3MB in the end (delta: 425.7MB). Free memory was 74.1MB in the beginning and 319.6MB in the end (delta: -245.5MB). Peak memory consumption was 182.0MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,373 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:13:13,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4536.17ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 73.8MB in the beginning and 109.0MB in the end (delta: -35.2MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.48ms. Allocated memory is still 174.1MB. Free memory was 109.0MB in the beginning and 99.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,373 INFO L158 Benchmark]: Boogie Preprocessor took 60.23ms. Allocated memory is still 174.1MB. Free memory was 99.6MB in the beginning and 95.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,373 INFO L158 Benchmark]: RCFGBuilder took 725.59ms. Allocated memory is still 174.1MB. Free memory was 95.4MB in the beginning and 53.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,374 INFO L158 Benchmark]: TraceAbstraction took 501733.59ms. Allocated memory was 174.1MB in the beginning and 545.3MB in the end (delta: 371.2MB). Free memory was 52.4MB in the beginning and 323.8MB in the end (delta: -271.3MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,374 INFO L158 Benchmark]: Witness Printer took 38.67ms. Allocated memory is still 545.3MB. Free memory was 323.8MB in the beginning and 319.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:13:13,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4536.17ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 73.8MB in the beginning and 109.0MB in the end (delta: -35.2MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.48ms. Allocated memory is still 174.1MB. Free memory was 109.0MB in the beginning and 99.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.23ms. Allocated memory is still 174.1MB. Free memory was 99.6MB in the beginning and 95.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 725.59ms. Allocated memory is still 174.1MB. Free memory was 95.4MB in the beginning and 53.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 501733.59ms. Allocated memory was 174.1MB in the beginning and 545.3MB in the end (delta: 371.2MB). Free memory was 52.4MB in the beginning and 323.8MB in the end (delta: -271.3MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. * Witness Printer took 38.67ms. Allocated memory is still 545.3MB. Free memory was 323.8MB in the beginning and 319.6MB 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: 482.7s, 348 PlacesBefore, 24 PlacesAfterwards, 356 TransitionsBefore, 21 TransitionsAfterwards, 12540 CoEnabledTransitionPairs, 10 FixpointIterations, 200 TrivialSequentialCompositions, 152 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 33 ConcurrentYvCompositions, 11 ChoiceCompositions, 410 TotalNumberOfCompositions, 13704 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11512, independent: 11345, independent conditional: 0, independent unconditional: 11345, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7344, independent: 7297, independent conditional: 0, independent unconditional: 7297, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11512, independent: 4048, independent conditional: 0, independent unconditional: 4048, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 7344, unknown conditional: 0, unknown unconditional: 7344] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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 - 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, 494 locations, 6 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: 501.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 482.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2395 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1680 mSDsluCounter, 1473 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1177 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3602 IncrementalHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 296 mSDtfsCounter, 3602 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=6, InterpolantAutomatonStates: 53, 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, 1.1s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 687 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:13:13,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee3aeda-15c9-4fff-a215-21f4e31da677/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