./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/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_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 16:44:59,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:44:59,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:44:59,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:44:59,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:44:59,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:44:59,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:44:59,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:44:59,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:44:59,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:44:59,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:44:59,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:44:59,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:44:59,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:44:59,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:44:59,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:44:59,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:44:59,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:44:59,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:44:59,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:44:59,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:44:59,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:44:59,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:44:59,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:44:59,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:44:59,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:44:59,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:44:59,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:44:59,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:44:59,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:44:59,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:44:59,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:44:59,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:44:59,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:44:59,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:44:59,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:44:59,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:44:59,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:44:59,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:44:59,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:44:59,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:44:59,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:44:59,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:44:59,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:44:59,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:44:59,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:44:59,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:44:59,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:44:59,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:44:59,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:44:59,927 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:44:59,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:44:59,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:44:59,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:44:59,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:44:59,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:44:59,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:44:59,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:44:59,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:44:59,930 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:44:59,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:44:59,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:44:59,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:44:59,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:44:59,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:44:59,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:44:59,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:59,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:44:59,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:44:59,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:44:59,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:44:59,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:44:59,935 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:44:59,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:44:59,935 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:44:59,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:44:59,936 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_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-11-25 16:45:00,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:45:00,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:45:00,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:45:00,265 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:45:00,266 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:45:00,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-25 16:45:03,385 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:45:03,956 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:45:03,956 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-25 16:45:03,990 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/data/f3908b5d0/e1803f57fefb473691887883cb6e9151/FLAGb93636a21 [2022-11-25 16:45:04,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/data/f3908b5d0/e1803f57fefb473691887883cb6e9151 [2022-11-25 16:45:04,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:45:04,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:45:04,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:45:04,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:45:04,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:45:04,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:45:04" (1/1) ... [2022-11-25 16:45:04,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3d949c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:04, skipping insertion in model container [2022-11-25 16:45:04,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:45:04" (1/1) ... [2022-11-25 16:45:04,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:45:04,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:45:04,587 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_a4b72fec-f336-460d-95b6-f4c7704111ef/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-25 16:45:05,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:05,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:05,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:06,276 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-25 16:45:06,283 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 16:45:06,289 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 16:45:06,303 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 16:45:06,491 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 16:45:06,500 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 16:45:06,741 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-25 16:45:07,142 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 16:45:07,204 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 16:45:07,303 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-25 16:45:07,308 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-25 16:45:07,691 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-25 16:45:07,695 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-25 16:45:07,699 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-25 16:45:07,828 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-25 16:45:07,829 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 16:45:07,833 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-25 16:45:07,834 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 16:45:08,055 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-25 16:45:08,101 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 16:45:08,331 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-25 16:45:08,336 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 16:45:08,538 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 16:45:08,760 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-25 16:45:08,760 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-25 16:45:08,761 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-25 16:45:09,927 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-25 16:45:09,928 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:09,933 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:09,939 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:09,955 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:10,728 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-25 16:45:10,736 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-25 16:45:10,742 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-25 16:45:10,753 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-25 16:45:10,754 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-25 16:45:10,757 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-25 16:45:10,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:45:10,812 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:45:10,839 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_a4b72fec-f336-460d-95b6-f4c7704111ef/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-25 16:45:10,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:45:10,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:45:10,914 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-25 16:45:10,918 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 16:45:10,919 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 16:45:10,921 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 16:45:10,977 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 16:45:10,978 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 16:45:10,981 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-25 16:45:11,006 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 16:45:11,007 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 16:45:11,010 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-25 16:45:11,010 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-25 16:45:11,025 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-25 16:45:11,025 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-25 16:45:11,026 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-25 16:45:11,031 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-25 16:45:11,031 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 16:45:11,033 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-25 16:45:11,033 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 16:45:11,046 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-25 16:45:11,050 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 16:45:11,056 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-25 16:45:11,058 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 16:45:11,067 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 16:45:11,072 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-25 16:45:11,073 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-25 16:45:11,073 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-25 16:45:11,366 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-25 16:45:11,367 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:11,373 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:11,386 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:11,392 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 16:45:11,452 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-25 16:45:11,454 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-25 16:45:11,457 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-25 16:45:11,462 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-25 16:45:11,463 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-25 16:45:11,463 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-25 16:45:11,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:45:12,285 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:45:12,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12 WrapperNode [2022-11-25 16:45:12,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:45:12,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:45:12,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:45:12,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:45:12,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,492 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 314 [2022-11-25 16:45:12,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:45:12,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:45:12,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:45:12,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:45:12,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,574 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:45:12,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:45:12,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:45:12,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:45:12,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (1/1) ... [2022-11-25 16:45:12,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:45:12,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:45:12,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:45:12,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:45:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:45:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:45:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:45:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:45:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:45:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 16:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 16:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-11-25 16:45:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-11-25 16:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:45:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-25 16:45:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-25 16:45:12,712 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:45:13,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:45:13,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:45:13,893 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:45:13,909 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:45:13,909 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 16:45:13,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:45:13 BoogieIcfgContainer [2022-11-25 16:45:13,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:45:13,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:45:13,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:45:13,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:45:13,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:45:04" (1/3) ... [2022-11-25 16:45:13,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587db3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:45:13, skipping insertion in model container [2022-11-25 16:45:13,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:12" (2/3) ... [2022-11-25 16:45:13,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587db3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:45:13, skipping insertion in model container [2022-11-25 16:45:13,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:45:13" (3/3) ... [2022-11-25 16:45:13,925 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-25 16:45:13,935 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:45:13,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:45:13,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 16:45:13,948 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:45:14,116 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 16:45:14,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 367 transitions, 750 flow [2022-11-25 16:45:14,387 INFO L130 PetriNetUnfolder]: 15/365 cut-off events. [2022-11-25 16:45:14,387 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 16:45:14,396 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 340 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. [2022-11-25 16:45:14,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 367 transitions, 750 flow [2022-11-25 16:45:14,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 348 places, 356 transitions, 721 flow [2022-11-25 16:45:14,408 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:45:14,432 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 348 places, 356 transitions, 721 flow [2022-11-25 16:45:14,440 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 348 places, 356 transitions, 721 flow [2022-11-25 16:45:14,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 348 places, 356 transitions, 721 flow [2022-11-25 16:45:14,543 INFO L130 PetriNetUnfolder]: 15/356 cut-off events. [2022-11-25 16:45:14,543 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 16:45:14,546 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 321 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. [2022-11-25 16:45:14,552 INFO L119 LiptonReduction]: Number of co-enabled transitions 12540 [2022-11-25 16:46:45,155 WARN L233 SmtUtils]: Spent 33.88s on a formula simplification that was a NOOP. DAG size: 485 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:47:02,586 WARN L233 SmtUtils]: Spent 17.40s on a formula simplification that was a NOOP. DAG size: 413 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:47:23,172 WARN L233 SmtUtils]: Spent 20.58s on a formula simplification that was a NOOP. DAG size: 485 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:47:44,385 WARN L233 SmtUtils]: Spent 21.19s on a formula simplification that was a NOOP. DAG size: 413 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:50:20,517 WARN L233 SmtUtils]: Spent 2.58m 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) [2022-11-25 16:51:35,819 WARN L233 SmtUtils]: Spent 1.25m 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) [2022-11-25 16:55:15,101 WARN L233 SmtUtils]: Spent 3.65m 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) [2022-11-25 16:56:16,272 WARN L233 SmtUtils]: Spent 1.02m 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) [2022-11-25 16:56:16,292 INFO L134 LiptonReduction]: Checked pairs total: 13690 [2022-11-25 16:56:16,292 INFO L136 LiptonReduction]: Total number of compositions: 418 [2022-11-25 16:56:16,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:56:16,314 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;@20b55afb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:56:16,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 16:56:16,327 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-11-25 16:56:16,327 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 16:56:16,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:16,328 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 16:56:16,328 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)] === [2022-11-25 16:56:16,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:16,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1892082719, now seen corresponding path program 1 times [2022-11-25 16:56:16,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:16,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370694261] [2022-11-25 16:56:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:16,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:17,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:17,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370694261] [2022-11-25 16:56:17,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370694261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:17,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:17,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:56:17,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675669625] [2022-11-25 16:56:17,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:17,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:56:17,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:17,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:56:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:56:17,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 785 [2022-11-25 16:56:17,850 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) [2022-11-25 16:56:17,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:17,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 785 [2022-11-25 16:56:17,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:18,290 INFO L130 PetriNetUnfolder]: 197/332 cut-off events. [2022-11-25 16:56:18,290 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-25 16:56:18,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 332 events. 197/332 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1141 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. [2022-11-25 16:56:18,296 INFO L137 encePairwiseOnDemand]: 780/785 looper letters, 26 selfloop transitions, 4 changer transitions 3/33 dead transitions. [2022-11-25 16:56:18,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 147 flow [2022-11-25 16:56:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:56:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:56:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1063 transitions. [2022-11-25 16:56:18,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.451380042462845 [2022-11-25 16:56:18,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1063 transitions. [2022-11-25 16:56:18,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1063 transitions. [2022-11-25 16:56:18,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:18,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1063 transitions. [2022-11-25 16:56:18,343 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) [2022-11-25 16:56:18,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,362 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 51 flow. Second operand 3 states and 1063 transitions. [2022-11-25 16:56:18,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 147 flow [2022-11-25 16:56:18,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 33 transitions, 139 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 16:56:18,370 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 76 flow [2022-11-25 16:56:18,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, 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} [2022-11-25 16:56:18,376 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2022-11-25 16:56:18,377 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 76 flow [2022-11-25 16:56:18,377 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) [2022-11-25 16:56:18,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:18,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:18,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:56:18,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 16:56:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:18,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1474978316, now seen corresponding path program 1 times [2022-11-25 16:56:18,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:18,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480374788] [2022-11-25 16:56:18,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:18,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:19,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:19,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480374788] [2022-11-25 16:56:19,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480374788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:19,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:19,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:56:19,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263755736] [2022-11-25 16:56:19,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:19,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:56:19,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:19,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:56:19,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:56:19,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 785 [2022-11-25 16:56:19,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 76 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) [2022-11-25 16:56:19,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:19,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 785 [2022-11-25 16:56:19,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:20,789 INFO L130 PetriNetUnfolder]: 198/343 cut-off events. [2022-11-25 16:56:20,789 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2022-11-25 16:56:20,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 343 events. 198/343 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1352 event pairs, 19 based on Foata normal form. 7/280 useless extension candidates. Maximal degree in co-relation 634. Up to 194 conditions per place. [2022-11-25 16:56:20,791 INFO L137 encePairwiseOnDemand]: 778/785 looper letters, 30 selfloop transitions, 7 changer transitions 7/44 dead transitions. [2022-11-25 16:56:20,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 44 transitions, 219 flow [2022-11-25 16:56:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:56:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:56:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1733 transitions. [2022-11-25 16:56:20,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4415286624203822 [2022-11-25 16:56:20,798 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1733 transitions. [2022-11-25 16:56:20,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1733 transitions. [2022-11-25 16:56:20,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:20,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1733 transitions. [2022-11-25 16:56:20,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 346.6) internal successors, (1733), 5 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 785.0) internal successors, (4710), 6 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 785.0) internal successors, (4710), 6 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,831 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 76 flow. Second operand 5 states and 1733 transitions. [2022-11-25 16:56:20,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 44 transitions, 219 flow [2022-11-25 16:56:20,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 44 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:56:20,835 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 104 flow [2022-11-25 16:56:20,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2022-11-25 16:56:20,836 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2022-11-25 16:56:20,836 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 104 flow [2022-11-25 16:56:20,838 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) [2022-11-25 16:56:20,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:20,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:20,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:56:20,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 16:56:20,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1399575070, now seen corresponding path program 1 times [2022-11-25 16:56:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:20,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901883265] [2022-11-25 16:56:20,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:21,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:21,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901883265] [2022-11-25 16:56:21,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901883265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:21,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:21,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:56:21,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612275098] [2022-11-25 16:56:21,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:21,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:56:21,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:21,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:56:21,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:56:21,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 785 [2022-11-25 16:56:21,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 104 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) [2022-11-25 16:56:21,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:21,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 785 [2022-11-25 16:56:21,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:21,835 INFO L130 PetriNetUnfolder]: 161/302 cut-off events. [2022-11-25 16:56:21,835 INFO L131 PetriNetUnfolder]: For 234/234 co-relation queries the response was YES. [2022-11-25 16:56:21,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 302 events. 161/302 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1083 event pairs, 61 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 418. Up to 156 conditions per place. [2022-11-25 16:56:21,838 INFO L137 encePairwiseOnDemand]: 781/785 looper letters, 22 selfloop transitions, 4 changer transitions 11/37 dead transitions. [2022-11-25 16:56:21,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 217 flow [2022-11-25 16:56:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:56:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:56:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2022-11-25 16:56:21,842 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4496815286624204 [2022-11-25 16:56:21,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1059 transitions. [2022-11-25 16:56:21,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1059 transitions. [2022-11-25 16:56:21,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:21,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1059 transitions. [2022-11-25 16:56:21,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:21,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:21,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:21,856 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 104 flow. Second operand 3 states and 1059 transitions. [2022-11-25 16:56:21,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 217 flow [2022-11-25 16:56:21,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:56:21,861 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 110 flow [2022-11-25 16:56:21,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2022-11-25 16:56:21,866 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2022-11-25 16:56:21,866 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 110 flow [2022-11-25 16:56:21,867 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) [2022-11-25 16:56:21,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:21,868 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:21,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:56:21,868 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)] === [2022-11-25 16:56:21,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1816839317, now seen corresponding path program 1 times [2022-11-25 16:56:21,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:21,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457413705] [2022-11-25 16:56:21,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:21,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:23,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:23,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457413705] [2022-11-25 16:56:23,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457413705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:23,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:23,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:56:23,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732344827] [2022-11-25 16:56:23,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:23,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:56:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:56:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:56:24,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 785 [2022-11-25 16:56:24,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 110 flow. Second operand has 7 states, 7 states have (on average 333.42857142857144) internal successors, (2334), 7 states have internal predecessors, (2334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:24,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:24,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 785 [2022-11-25 16:56:24,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:25,093 INFO L130 PetriNetUnfolder]: 117/256 cut-off events. [2022-11-25 16:56:25,093 INFO L131 PetriNetUnfolder]: For 403/403 co-relation queries the response was YES. [2022-11-25 16:56:25,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 256 events. 117/256 cut-off events. For 403/403 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1090 event pairs, 16 based on Foata normal form. 6/262 useless extension candidates. Maximal degree in co-relation 616. Up to 133 conditions per place. [2022-11-25 16:56:25,095 INFO L137 encePairwiseOnDemand]: 778/785 looper letters, 22 selfloop transitions, 6 changer transitions 14/42 dead transitions. [2022-11-25 16:56:25,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 266 flow [2022-11-25 16:56:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:56:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:56:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2033 transitions. [2022-11-25 16:56:25,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4316348195329087 [2022-11-25 16:56:25,106 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2033 transitions. [2022-11-25 16:56:25,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2033 transitions. [2022-11-25 16:56:25,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:25,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2033 transitions. [2022-11-25 16:56:25,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.8333333333333) internal successors, (2033), 6 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:25,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 785.0) internal successors, (5495), 7 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:25,124 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 785.0) internal successors, (5495), 7 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:25,125 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 110 flow. Second operand 6 states and 2033 transitions. [2022-11-25 16:56:25,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 266 flow [2022-11-25 16:56:25,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 42 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 16:56:25,130 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 112 flow [2022-11-25 16:56:25,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, 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=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2022-11-25 16:56:25,132 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2022-11-25 16:56:25,132 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 112 flow [2022-11-25 16:56:25,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 333.42857142857144) internal successors, (2334), 7 states have internal predecessors, (2334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:25,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:25,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:25,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:56:25,135 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)] === [2022-11-25 16:56:25,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:25,135 INFO L85 PathProgramCache]: Analyzing trace with hash -554452973, now seen corresponding path program 2 times [2022-11-25 16:56:25,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:25,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962311272] [2022-11-25 16:56:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:25,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:26,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:26,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962311272] [2022-11-25 16:56:26,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962311272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:26,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:26,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:56:26,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097296342] [2022-11-25 16:56:26,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:26,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:56:26,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:26,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:56:26,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:56:26,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 785 [2022-11-25 16:56:26,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 334.42857142857144) internal successors, (2341), 7 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:26,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:26,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 785 [2022-11-25 16:56:26,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:28,015 INFO L130 PetriNetUnfolder]: 151/330 cut-off events. [2022-11-25 16:56:28,015 INFO L131 PetriNetUnfolder]: For 428/428 co-relation queries the response was YES. [2022-11-25 16:56:28,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 330 events. 151/330 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1483 event pairs, 24 based on Foata normal form. 6/336 useless extension candidates. Maximal degree in co-relation 929. Up to 111 conditions per place. [2022-11-25 16:56:28,017 INFO L137 encePairwiseOnDemand]: 778/785 looper letters, 29 selfloop transitions, 9 changer transitions 16/54 dead transitions. [2022-11-25 16:56:28,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 344 flow [2022-11-25 16:56:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:56:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:56:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2716 transitions. [2022-11-25 16:56:28,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43248407643312103 [2022-11-25 16:56:28,025 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2716 transitions. [2022-11-25 16:56:28,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2716 transitions. [2022-11-25 16:56:28,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:28,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2716 transitions. [2022-11-25 16:56:28,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 339.5) internal successors, (2716), 8 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:28,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 785.0) internal successors, (7065), 9 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:28,045 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 785.0) internal successors, (7065), 9 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:28,045 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 112 flow. Second operand 8 states and 2716 transitions. [2022-11-25 16:56:28,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 344 flow [2022-11-25 16:56:28,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 54 transitions, 320 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-25 16:56:28,048 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 146 flow [2022-11-25 16:56:28,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=146, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2022-11-25 16:56:28,049 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 13 predicate places. [2022-11-25 16:56:28,049 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 146 flow [2022-11-25 16:56:28,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 334.42857142857144) internal successors, (2341), 7 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:28,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:28,051 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:56:28,051 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)] === [2022-11-25 16:56:28,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash 466545668, now seen corresponding path program 1 times [2022-11-25 16:56:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:28,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043570738] [2022-11-25 16:56:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:28,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:29,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:29,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043570738] [2022-11-25 16:56:29,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043570738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:29,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:29,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:56:29,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890825289] [2022-11-25 16:56:29,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:29,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:56:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:29,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:56:29,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:56:29,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 785 [2022-11-25 16:56:29,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 146 flow. Second operand has 7 states, 7 states have (on average 337.42857142857144) internal successors, (2362), 7 states have internal predecessors, (2362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:29,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:29,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 785 [2022-11-25 16:56:29,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:30,275 INFO L130 PetriNetUnfolder]: 131/280 cut-off events. [2022-11-25 16:56:30,276 INFO L131 PetriNetUnfolder]: For 422/422 co-relation queries the response was YES. [2022-11-25 16:56:30,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 280 events. 131/280 cut-off events. For 422/422 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1168 event pairs, 15 based on Foata normal form. 6/286 useless extension candidates. Maximal degree in co-relation 694. Up to 109 conditions per place. [2022-11-25 16:56:30,277 INFO L137 encePairwiseOnDemand]: 779/785 looper letters, 28 selfloop transitions, 10 changer transitions 15/53 dead transitions. [2022-11-25 16:56:30,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 342 flow [2022-11-25 16:56:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:56:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:56:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2738 transitions. [2022-11-25 16:56:30,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43598726114649683 [2022-11-25 16:56:30,287 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2738 transitions. [2022-11-25 16:56:30,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2738 transitions. [2022-11-25 16:56:30,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:30,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2738 transitions. [2022-11-25 16:56:30,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 342.25) internal successors, (2738), 8 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:30,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 785.0) internal successors, (7065), 9 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:30,319 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 785.0) internal successors, (7065), 9 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:30,326 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 146 flow. Second operand 8 states and 2738 transitions. [2022-11-25 16:56:30,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 342 flow [2022-11-25 16:56:30,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 53 transitions, 326 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-25 16:56:30,329 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 170 flow [2022-11-25 16:56:30,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, 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} [2022-11-25 16:56:30,331 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2022-11-25 16:56:30,332 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 170 flow [2022-11-25 16:56:30,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 337.42857142857144) internal successors, (2362), 7 states have internal predecessors, (2362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:30,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:30,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:30,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:56:30,335 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)] === [2022-11-25 16:56:30,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:30,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1204194683, now seen corresponding path program 3 times [2022-11-25 16:56:30,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:30,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338614119] [2022-11-25 16:56:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:31,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:31,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338614119] [2022-11-25 16:56:31,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338614119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:31,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:31,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:56:31,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490739477] [2022-11-25 16:56:31,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:31,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:56:31,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:56:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:56:31,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 785 [2022-11-25 16:56:31,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 170 flow. Second operand has 7 states, 7 states have (on average 333.42857142857144) internal successors, (2334), 7 states have internal predecessors, (2334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:31,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:31,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 785 [2022-11-25 16:56:31,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:32,696 INFO L130 PetriNetUnfolder]: 107/244 cut-off events. [2022-11-25 16:56:32,697 INFO L131 PetriNetUnfolder]: For 447/447 co-relation queries the response was YES. [2022-11-25 16:56:32,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 244 events. 107/244 cut-off events. For 447/447 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1013 event pairs, 18 based on Foata normal form. 6/250 useless extension candidates. Maximal degree in co-relation 510. Up to 70 conditions per place. [2022-11-25 16:56:32,698 INFO L137 encePairwiseOnDemand]: 779/785 looper letters, 21 selfloop transitions, 8 changer transitions 21/50 dead transitions. [2022-11-25 16:56:32,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 333 flow [2022-11-25 16:56:32,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:56:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 16:56:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2372 transitions. [2022-11-25 16:56:32,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4316651501364877 [2022-11-25 16:56:32,708 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2372 transitions. [2022-11-25 16:56:32,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2372 transitions. [2022-11-25 16:56:32,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:32,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2372 transitions. [2022-11-25 16:56:32,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.85714285714283) internal successors, (2372), 7 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 785.0) internal successors, (6280), 8 states have internal predecessors, (6280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,728 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 785.0) internal successors, (6280), 8 states have internal predecessors, (6280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,729 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 170 flow. Second operand 7 states and 2372 transitions. [2022-11-25 16:56:32,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 333 flow [2022-11-25 16:56:32,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 323 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-25 16:56:32,732 INFO L231 Difference]: Finished difference. Result has 47 places, 25 transitions, 154 flow [2022-11-25 16:56:32,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, 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} [2022-11-25 16:56:32,733 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 23 predicate places. [2022-11-25 16:56:32,733 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 25 transitions, 154 flow [2022-11-25 16:56:32,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 333.42857142857144) internal successors, (2334), 7 states have internal predecessors, (2334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:32,735 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:32,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:56:32,735 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 16:56:32,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -740445951, now seen corresponding path program 4 times [2022-11-25 16:56:32,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:32,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76913541] [2022-11-25 16:56:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:32,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:44,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:44,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76913541] [2022-11-25 16:56:44,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76913541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:44,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:44,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:56:44,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924222668] [2022-11-25 16:56:44,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:44,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:56:44,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:44,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:56:44,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:56:44,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 785 [2022-11-25 16:56:44,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 25 transitions, 154 flow. Second operand has 8 states, 8 states have (on average 327.25) internal successors, (2618), 8 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:44,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:44,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 785 [2022-11-25 16:56:44,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:45,891 INFO L130 PetriNetUnfolder]: 86/193 cut-off events. [2022-11-25 16:56:45,892 INFO L131 PetriNetUnfolder]: For 351/351 co-relation queries the response was YES. [2022-11-25 16:56:45,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 193 events. 86/193 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 704 event pairs, 16 based on Foata normal form. 6/199 useless extension candidates. Maximal degree in co-relation 625. Up to 72 conditions per place. [2022-11-25 16:56:45,893 INFO L137 encePairwiseOnDemand]: 780/785 looper letters, 15 selfloop transitions, 4 changer transitions 19/38 dead transitions. [2022-11-25 16:56:45,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 269 flow [2022-11-25 16:56:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:56:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:56:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1992 transitions. [2022-11-25 16:56:45,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4229299363057325 [2022-11-25 16:56:45,899 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1992 transitions. [2022-11-25 16:56:45,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1992 transitions. [2022-11-25 16:56:45,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:45,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1992 transitions. [2022-11-25 16:56:45,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:45,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 785.0) internal successors, (5495), 7 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:45,915 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 785.0) internal successors, (5495), 7 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:45,915 INFO L175 Difference]: Start difference. First operand has 47 places, 25 transitions, 154 flow. Second operand 6 states and 1992 transitions. [2022-11-25 16:56:45,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 269 flow [2022-11-25 16:56:45,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 38 transitions, 255 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-25 16:56:45,918 INFO L231 Difference]: Finished difference. Result has 46 places, 17 transitions, 92 flow [2022-11-25 16:56:45,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=46, PETRI_TRANSITIONS=17} [2022-11-25 16:56:45,921 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 22 predicate places. [2022-11-25 16:56:45,921 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 17 transitions, 92 flow [2022-11-25 16:56:45,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 327.25) internal successors, (2618), 8 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:45,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:45,923 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:45,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:56:45,927 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 16:56:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:45,927 INFO L85 PathProgramCache]: Analyzing trace with hash -554484648, now seen corresponding path program 2 times [2022-11-25 16:56:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:45,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965544339] [2022-11-25 16:56:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:46,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:46,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965544339] [2022-11-25 16:56:46,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965544339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:46,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:46,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:56:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72461594] [2022-11-25 16:56:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:46,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:56:46,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:46,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:56:46,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:56:47,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 785 [2022-11-25 16:56:47,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 17 transitions, 92 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) [2022-11-25 16:56:47,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:47,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 785 [2022-11-25 16:56:47,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:47,958 INFO L130 PetriNetUnfolder]: 16/39 cut-off events. [2022-11-25 16:56:47,959 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-25 16:56:47,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 39 events. 16/39 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 139. Up to 20 conditions per place. [2022-11-25 16:56:47,959 INFO L137 encePairwiseOnDemand]: 780/785 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2022-11-25 16:56:47,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 22 transitions, 144 flow [2022-11-25 16:56:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:56:47,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 16:56:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2382 transitions. [2022-11-25 16:56:47,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4334849863512284 [2022-11-25 16:56:47,965 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2382 transitions. [2022-11-25 16:56:47,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2382 transitions. [2022-11-25 16:56:47,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:47,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2382 transitions. [2022-11-25 16:56:47,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 340.2857142857143) internal successors, (2382), 7 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:47,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 785.0) internal successors, (6280), 8 states have internal predecessors, (6280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:47,980 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 785.0) internal successors, (6280), 8 states have internal predecessors, (6280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:47,980 INFO L175 Difference]: Start difference. First operand has 46 places, 17 transitions, 92 flow. Second operand 7 states and 2382 transitions. [2022-11-25 16:56:47,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 22 transitions, 144 flow [2022-11-25 16:56:47,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 106 flow, removed 4 selfloop flow, removed 13 redundant places. [2022-11-25 16:56:47,982 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2022-11-25 16:56:47,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=785, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2022-11-25 16:56:47,982 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2022-11-25 16:56:47,982 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2022-11-25 16:56:47,983 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) [2022-11-25 16:56:47,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-11-25 16:56:47,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-11-25 16:56:47,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-25 16:56:47,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-11-25 16:56:47,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-25 16:56:47,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-25 16:56:47,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:56:47,988 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1] [2022-11-25 16:56:47,992 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:56:47,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:56:47,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:56:47 BasicIcfg [2022-11-25 16:56:47,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:56:47,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:56:47,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:56:47,996 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:56:47,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:45:13" (3/4) ... [2022-11-25 16:56:47,999 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:56:48,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2022-11-25 16:56:48,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_llseek [2022-11-25 16:56:48,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-11-25 16:56:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 16:56:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 16:56:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:56:48,012 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:56:48,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:56:48,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:56:48,053 INFO L158 Benchmark]: Toolchain (without parser) took 704037.63ms. Allocated memory was 155.2MB in the beginning and 679.5MB in the end (delta: 524.3MB). Free memory was 100.5MB in the beginning and 418.4MB in the end (delta: -317.9MB). Peak memory consumption was 209.6MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,054 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory was 124.5MB in the beginning and 124.4MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:56:48,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 8266.51ms. Allocated memory was 155.2MB in the beginning and 243.3MB in the end (delta: 88.1MB). Free memory was 100.0MB in the beginning and 165.6MB in the end (delta: -65.6MB). Peak memory consumption was 109.5MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 209.58ms. Allocated memory is still 243.3MB. Free memory was 165.6MB in the beginning and 156.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,055 INFO L158 Benchmark]: Boogie Preprocessor took 106.05ms. Allocated memory is still 243.3MB. Free memory was 156.1MB in the beginning and 151.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,055 INFO L158 Benchmark]: RCFGBuilder took 1310.70ms. Allocated memory is still 243.3MB. Free memory was 151.9MB in the beginning and 111.1MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,055 INFO L158 Benchmark]: TraceAbstraction took 694078.62ms. Allocated memory was 243.3MB in the beginning and 679.5MB in the end (delta: 436.2MB). Free memory was 111.1MB in the beginning and 422.6MB in the end (delta: -311.5MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,056 INFO L158 Benchmark]: Witness Printer took 56.89ms. Allocated memory is still 679.5MB. Free memory was 422.6MB in the beginning and 418.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:56:48,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory was 124.5MB in the beginning and 124.4MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 8266.51ms. Allocated memory was 155.2MB in the beginning and 243.3MB in the end (delta: 88.1MB). Free memory was 100.0MB in the beginning and 165.6MB in the end (delta: -65.6MB). Peak memory consumption was 109.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 209.58ms. Allocated memory is still 243.3MB. Free memory was 165.6MB in the beginning and 156.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.05ms. Allocated memory is still 243.3MB. Free memory was 156.1MB in the beginning and 151.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1310.70ms. Allocated memory is still 243.3MB. Free memory was 151.9MB in the beginning and 111.1MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 694078.62ms. Allocated memory was 243.3MB in the beginning and 679.5MB in the end (delta: 436.2MB). Free memory was 111.1MB in the beginning and 422.6MB in the end (delta: -311.5MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. * Witness Printer took 56.89ms. Allocated memory is still 679.5MB. Free memory was 422.6MB in the beginning and 418.4MB 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: 661.9s, 348 PlacesBefore, 24 PlacesAfterwards, 356 TransitionsBefore, 21 TransitionsAfterwards, 12540 CoEnabledTransitionPairs, 10 FixpointIterations, 198 TrivialSequentialCompositions, 159 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 32 ConcurrentYvCompositions, 11 ChoiceCompositions, 418 TotalNumberOfCompositions, 13690 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11772, independent: 11628, independent conditional: 0, independent unconditional: 11628, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9259, independent: 9217, independent conditional: 0, independent unconditional: 9217, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9259, independent: 9191, independent conditional: 0, independent unconditional: 9191, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4632, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 4344, unknown conditional: 0, unknown unconditional: 4344] ], Cache Queries: [ total: 11772, independent: 2411, independent conditional: 0, independent unconditional: 2411, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 9262, unknown conditional: 0, unknown unconditional: 9262] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - 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: 693.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 662.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2442 SdHoareTripleChecker+Valid, 9.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1674 mSDsluCounter, 1656 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1250 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4219 IncrementalHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 406 mSDtfsCounter, 4219 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s 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, 1.7s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 742 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! [2022-11-25 16:56:48,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4b72fec-f336-460d-95b6-f4c7704111ef/bin/uautomizer-ZsLfNo2U6R/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